./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e587d407128aaafd417211e5ccf66790913a0bc1afeba03ae0cdb578f5831614 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:17:13,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:17:13,402 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:17:13,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:17:13,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:17:13,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:17:13,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:17:13,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:17:13,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:17:13,434 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:17:13,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:17:13,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:17:13,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:17:13,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:17:13,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:17:13,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:17:13,436 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:17:13,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:17:13,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:17:13,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:17:13,436 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:17:13,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:17:13,439 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:17:13,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:17:13,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:17:13,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:17:13,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:17:13,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:17:13,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:17:13,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:17:13,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:17:13,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:17:13,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:17:13,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:17:13,441 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:17:13,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:17:13,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:17:13,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:17:13,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:17:13,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:17:13,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:17:13,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:17:13,442 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e587d407128aaafd417211e5ccf66790913a0bc1afeba03ae0cdb578f5831614 [2024-11-27 23:17:13,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:17:13,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:17:13,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:17:13,758 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:17:13,758 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:17:13,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c [2024-11-27 23:17:16,710 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/data/4c1d1fbaf/3a1117c103a546f4821998b1f81cb41c/FLAGf0b853594 [2024-11-27 23:17:16,956 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:17:16,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c [2024-11-27 23:17:16,967 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/data/4c1d1fbaf/3a1117c103a546f4821998b1f81cb41c/FLAGf0b853594 [2024-11-27 23:17:16,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/data/4c1d1fbaf/3a1117c103a546f4821998b1f81cb41c [2024-11-27 23:17:16,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:17:16,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:17:16,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:17:16,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:17:17,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:17:17,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:17:16" (1/1) ... [2024-11-27 23:17:17,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c2ec8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17, skipping insertion in model container [2024-11-27 23:17:17,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:17:16" (1/1) ... [2024-11-27 23:17:17,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:17:17,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:17:17,232 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:17:17,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:17:17,270 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:17:17,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17 WrapperNode [2024-11-27 23:17:17,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:17:17,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:17:17,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:17:17,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:17:17,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,305 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 147 [2024-11-27 23:17:17,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:17:17,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:17:17,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:17:17,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:17:17,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,328 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:17:17,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,332 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,333 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:17:17,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:17:17,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:17:17,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:17:17,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (1/1) ... [2024-11-27 23:17:17,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:17:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:17,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:17:17,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:17:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:17:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:17:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:17:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:17:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:17:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:17:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:17:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:17:17,500 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:17:17,502 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:17:18,219 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-27 23:17:18,219 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:17:18,241 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:17:18,243 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:17:18,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:17:18 BoogieIcfgContainer [2024-11-27 23:17:18,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:17:18,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:17:18,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:17:18,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:17:18,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:17:16" (1/3) ... [2024-11-27 23:17:18,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a52c7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:17:18, skipping insertion in model container [2024-11-27 23:17:18,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:17:17" (2/3) ... [2024-11-27 23:17:18,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a52c7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:17:18, skipping insertion in model container [2024-11-27 23:17:18,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:17:18" (3/3) ... [2024-11-27 23:17:18,260 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound20.c [2024-11-27 23:17:18,279 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:17:18,280 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd2-ll_valuebound20.c that has 3 procedures, 161 locations, 1 initial locations, 2 loop locations, and 64 error locations. [2024-11-27 23:17:18,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:17:18,375 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f692e16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:17:18,375 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-27 23:17:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 82 states have (on average 1.8780487804878048) internal successors, (154), 147 states have internal predecessors, (154), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:17:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 23:17:18,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:18,389 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:18,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:18,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash 136611064, now seen corresponding path program 1 times [2024-11-27 23:17:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:18,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653004620] [2024-11-27 23:17:18,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:18,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 23:17:18,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:18,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653004620] [2024-11-27 23:17:18,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653004620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:18,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493995396] [2024-11-27 23:17:18,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:18,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:18,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:18,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:18,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:17:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:18,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:17:18,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:18,713 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 23:17:18,713 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:18,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493995396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:18,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:18,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:17:18,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854282736] [2024-11-27 23:17:18,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:18,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:17:18,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:18,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:17:18,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:17:18,748 INFO L87 Difference]: Start difference. First operand has 161 states, 82 states have (on average 1.8780487804878048) internal successors, (154), 147 states have internal predecessors, (154), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:17:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:18,797 INFO L93 Difference]: Finished difference Result 317 states and 363 transitions. [2024-11-27 23:17:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:17:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-27 23:17:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:18,810 INFO L225 Difference]: With dead ends: 317 [2024-11-27 23:17:18,810 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 23:17:18,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:17:18,819 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:18,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:17:18,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 23:17:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-27 23:17:18,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 77 states have (on average 1.8311688311688312) internal successors, (141), 140 states have internal predecessors, (141), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:17:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2024-11-27 23:17:18,891 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 25 [2024-11-27 23:17:18,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:18,891 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2024-11-27 23:17:18,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:17:18,892 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2024-11-27 23:17:18,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 23:17:18,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:18,893 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:18,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:19,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:17:19,094 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:19,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:19,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1111730756, now seen corresponding path program 1 times [2024-11-27 23:17:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:19,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859608450] [2024-11-27 23:17:19,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:19,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742994748] [2024-11-27 23:17:19,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:19,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:19,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:19,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:19,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:17:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:19,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:17:19,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:17:19,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:19,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:19,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859608450] [2024-11-27 23:17:19,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:19,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742994748] [2024-11-27 23:17:19,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742994748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:19,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:19,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:17:19,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749311159] [2024-11-27 23:17:19,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:19,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:17:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:19,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:17:19,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:17:19,420 INFO L87 Difference]: Start difference. First operand 153 states and 163 transitions. Second operand has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:17:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:19,869 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2024-11-27 23:17:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:17:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2024-11-27 23:17:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:19,874 INFO L225 Difference]: With dead ends: 153 [2024-11-27 23:17:19,874 INFO L226 Difference]: Without dead ends: 151 [2024-11-27 23:17:19,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:17:19,876 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:19,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 238 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:17:19,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-27 23:17:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-27 23:17:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 77 states have (on average 1.8051948051948052) internal successors, (139), 138 states have internal predecessors, (139), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:17:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2024-11-27 23:17:19,897 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2024-11-27 23:17:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:19,898 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2024-11-27 23:17:19,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:17:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2024-11-27 23:17:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-27 23:17:19,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:19,899 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:19,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:17:20,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:20,104 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:20,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash -103915026, now seen corresponding path program 1 times [2024-11-27 23:17:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:20,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537160871] [2024-11-27 23:17:20,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:20,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:20,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177454711] [2024-11-27 23:17:20,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:20,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:20,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:20,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:20,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:17:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:20,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:17:20,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:17:20,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:20,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:20,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537160871] [2024-11-27 23:17:20,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:20,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177454711] [2024-11-27 23:17:20,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177454711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:20,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:20,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-27 23:17:20,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179778830] [2024-11-27 23:17:20,681 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:20,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:17:20,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:20,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:17:20,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:20,682 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:17:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:21,073 INFO L93 Difference]: Finished difference Result 151 states and 161 transitions. [2024-11-27 23:17:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:17:21,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 26 [2024-11-27 23:17:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:21,079 INFO L225 Difference]: With dead ends: 151 [2024-11-27 23:17:21,079 INFO L226 Difference]: Without dead ends: 150 [2024-11-27 23:17:21,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:21,080 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 190 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:21,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 238 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:17:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-27 23:17:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-27 23:17:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 137 states have internal predecessors, (138), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:17:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2024-11-27 23:17:21,104 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 26 [2024-11-27 23:17:21,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:21,105 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2024-11-27 23:17:21,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:17:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2024-11-27 23:17:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 23:17:21,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:21,107 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:21,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:21,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:21,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:21,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:21,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1012015952, now seen corresponding path program 1 times [2024-11-27 23:17:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:21,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512074691] [2024-11-27 23:17:21,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:21,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:21,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512074691] [2024-11-27 23:17:21,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512074691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132438996] [2024-11-27 23:17:21,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:21,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:21,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:21,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:21,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:17:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:21,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:17:21,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:21,688 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:21,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:21,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132438996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:21,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:21,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-27 23:17:21,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263498039] [2024-11-27 23:17:21,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:21,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:21,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:21,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:21,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:21,690 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:22,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:22,042 INFO L93 Difference]: Finished difference Result 254 states and 286 transitions. [2024-11-27 23:17:22,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:22,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-27 23:17:22,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:22,044 INFO L225 Difference]: With dead ends: 254 [2024-11-27 23:17:22,044 INFO L226 Difference]: Without dead ends: 244 [2024-11-27 23:17:22,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:22,048 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:22,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:17:22,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-27 23:17:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 201. [2024-11-27 23:17:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 124 states have (on average 1.782258064516129) internal successors, (221), 183 states have internal predecessors, (221), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:17:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 251 transitions. [2024-11-27 23:17:22,083 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 251 transitions. Word has length 40 [2024-11-27 23:17:22,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:22,084 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 251 transitions. [2024-11-27 23:17:22,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 251 transitions. [2024-11-27 23:17:22,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 23:17:22,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:22,085 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:22,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:22,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:22,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:22,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:22,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1012016002, now seen corresponding path program 1 times [2024-11-27 23:17:22,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:22,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232834357] [2024-11-27 23:17:22,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:22,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:22,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733741818] [2024-11-27 23:17:22,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:22,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:22,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:22,309 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:22,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:17:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:22,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:17:22,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:22,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:22,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:22,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232834357] [2024-11-27 23:17:22,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:22,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733741818] [2024-11-27 23:17:22,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733741818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:22,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:22,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94343199] [2024-11-27 23:17:22,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:22,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:22,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:22,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:22,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:22,381 INFO L87 Difference]: Start difference. First operand 201 states and 251 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 23:17:22,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:22,473 INFO L93 Difference]: Finished difference Result 345 states and 445 transitions. [2024-11-27 23:17:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:22,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2024-11-27 23:17:22,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:22,476 INFO L225 Difference]: With dead ends: 345 [2024-11-27 23:17:22,476 INFO L226 Difference]: Without dead ends: 337 [2024-11-27 23:17:22,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:22,477 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 83 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:22,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:17:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-27 23:17:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 298. [2024-11-27 23:17:22,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.784037558685446) internal successors, (380), 272 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 426 transitions. [2024-11-27 23:17:22,520 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 426 transitions. Word has length 40 [2024-11-27 23:17:22,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:22,521 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 426 transitions. [2024-11-27 23:17:22,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 23:17:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 426 transitions. [2024-11-27 23:17:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 23:17:22,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:22,523 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:22,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:22,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:22,724 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:22,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1884715054, now seen corresponding path program 1 times [2024-11-27 23:17:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379099564] [2024-11-27 23:17:22,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:22,864 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:22,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:22,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379099564] [2024-11-27 23:17:22,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379099564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:22,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886037161] [2024-11-27 23:17:22,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:22,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:22,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:22,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:22,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:17:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:22,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:17:22,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:23,005 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:23,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886037161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:23,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:23,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:17:23,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280627964] [2024-11-27 23:17:23,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:23,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:23,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:23,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:23,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:23,007 INFO L87 Difference]: Start difference. First operand 298 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:23,462 INFO L93 Difference]: Finished difference Result 317 states and 448 transitions. [2024-11-27 23:17:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:23,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-27 23:17:23,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:23,466 INFO L225 Difference]: With dead ends: 317 [2024-11-27 23:17:23,468 INFO L226 Difference]: Without dead ends: 316 [2024-11-27 23:17:23,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:23,469 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 58 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:23,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 197 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:17:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-27 23:17:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2024-11-27 23:17:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.780373831775701) internal successors, (381), 273 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 427 transitions. [2024-11-27 23:17:23,497 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 427 transitions. Word has length 42 [2024-11-27 23:17:23,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:23,498 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 427 transitions. [2024-11-27 23:17:23,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 427 transitions. [2024-11-27 23:17:23,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 23:17:23,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:23,503 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:23,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:23,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 23:17:23,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:23,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1884766688, now seen corresponding path program 1 times [2024-11-27 23:17:23,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:23,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078437834] [2024-11-27 23:17:23,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:23,978 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:23,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:23,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078437834] [2024-11-27 23:17:23,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078437834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:23,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414524998] [2024-11-27 23:17:23,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:23,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:23,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:23,981 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:23,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:17:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:24,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:17:24,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:24,141 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:24,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414524998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:24,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:24,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-27 23:17:24,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727642129] [2024-11-27 23:17:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:24,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:17:24,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:24,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:17:24,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:17:24,145 INFO L87 Difference]: Start difference. First operand 299 states and 427 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:24,837 INFO L93 Difference]: Finished difference Result 380 states and 447 transitions. [2024-11-27 23:17:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:17:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-27 23:17:24,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:24,842 INFO L225 Difference]: With dead ends: 380 [2024-11-27 23:17:24,843 INFO L226 Difference]: Without dead ends: 379 [2024-11-27 23:17:24,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:17:24,844 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 453 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:24,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 285 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:17:24,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-27 23:17:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 299. [2024-11-27 23:17:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.7757009345794392) internal successors, (380), 273 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 426 transitions. [2024-11-27 23:17:24,871 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 426 transitions. Word has length 42 [2024-11-27 23:17:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:24,872 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 426 transitions. [2024-11-27 23:17:24,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 426 transitions. [2024-11-27 23:17:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:17:24,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:24,873 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:24,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:25,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:25,074 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:25,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1703375659, now seen corresponding path program 1 times [2024-11-27 23:17:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:25,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559394657] [2024-11-27 23:17:25,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:25,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:25,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:25,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559394657] [2024-11-27 23:17:25,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559394657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:25,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47128922] [2024-11-27 23:17:25,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:25,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:25,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:25,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:25,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:17:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:25,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:17:25,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:25,340 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:25,340 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:25,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47128922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:25,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:25,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:17:25,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491488591] [2024-11-27 23:17:25,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:25,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:25,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:25,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:25,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:25,342 INFO L87 Difference]: Start difference. First operand 299 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:25,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:25,916 INFO L93 Difference]: Finished difference Result 317 states and 446 transitions. [2024-11-27 23:17:25,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:25,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-27 23:17:25,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:25,918 INFO L225 Difference]: With dead ends: 317 [2024-11-27 23:17:25,919 INFO L226 Difference]: Without dead ends: 316 [2024-11-27 23:17:25,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:25,919 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 57 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:25,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 198 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:17:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-27 23:17:25,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 300. [2024-11-27 23:17:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7720930232558139) internal successors, (381), 274 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:25,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 427 transitions. [2024-11-27 23:17:25,937 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 427 transitions. Word has length 43 [2024-11-27 23:17:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:25,938 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 427 transitions. [2024-11-27 23:17:25,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 427 transitions. [2024-11-27 23:17:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:17:25,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:25,939 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:25,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:26,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:26,139 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:26,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1701774893, now seen corresponding path program 1 times [2024-11-27 23:17:26,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:26,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100381766] [2024-11-27 23:17:26,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:26,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333808205] [2024-11-27 23:17:26,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:26,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:26,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:26,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:26,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:17:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:26,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:17:26,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:26,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:26,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:26,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100381766] [2024-11-27 23:17:26,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:26,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333808205] [2024-11-27 23:17:26,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333808205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:26,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:17:26,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651117718] [2024-11-27 23:17:26,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:17:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:26,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:17:26,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:26,274 INFO L87 Difference]: Start difference. First operand 300 states and 427 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:26,795 INFO L93 Difference]: Finished difference Result 379 states and 445 transitions. [2024-11-27 23:17:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:17:26,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-27 23:17:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:26,797 INFO L225 Difference]: With dead ends: 379 [2024-11-27 23:17:26,797 INFO L226 Difference]: Without dead ends: 378 [2024-11-27 23:17:26,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:26,798 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 428 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:26,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 300 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:17:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-27 23:17:26,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 300. [2024-11-27 23:17:26,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7674418604651163) internal successors, (380), 274 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 426 transitions. [2024-11-27 23:17:26,821 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 426 transitions. Word has length 43 [2024-11-27 23:17:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:26,821 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 426 transitions. [2024-11-27 23:17:26,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 426 transitions. [2024-11-27 23:17:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 23:17:26,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:26,824 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:26,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:27,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:27,025 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:27,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1265038068, now seen corresponding path program 1 times [2024-11-27 23:17:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:27,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896138436] [2024-11-27 23:17:27,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:27,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:27,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:27,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896138436] [2024-11-27 23:17:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896138436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:27,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252816262] [2024-11-27 23:17:27,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:27,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:27,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:27,149 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:27,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:17:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:27,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:27,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:27,251 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:27,251 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:27,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252816262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:27,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:27,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:17:27,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773293201] [2024-11-27 23:17:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:27,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:27,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:27,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:27,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:27,254 INFO L87 Difference]: Start difference. First operand 300 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:27,772 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2024-11-27 23:17:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:27,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-27 23:17:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:27,774 INFO L225 Difference]: With dead ends: 349 [2024-11-27 23:17:27,774 INFO L226 Difference]: Without dead ends: 345 [2024-11-27 23:17:27,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:27,775 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 145 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:27,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 221 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:17:27,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-27 23:17:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 301. [2024-11-27 23:17:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 216 states have (on average 1.7407407407407407) internal successors, (376), 275 states have internal predecessors, (376), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 422 transitions. [2024-11-27 23:17:27,794 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 422 transitions. Word has length 44 [2024-11-27 23:17:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:27,794 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 422 transitions. [2024-11-27 23:17:27,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 422 transitions. [2024-11-27 23:17:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 23:17:27,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:27,795 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:27,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:17:27,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 23:17:28,000 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:28,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash 561474637, now seen corresponding path program 1 times [2024-11-27 23:17:28,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:28,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886062684] [2024-11-27 23:17:28,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:28,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:28,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:28,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886062684] [2024-11-27 23:17:28,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886062684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:28,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461283438] [2024-11-27 23:17:28,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:28,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:28,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:28,106 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:28,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:17:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:28,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:28,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:28,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:28,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461283438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:28,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:28,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:17:28,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512226942] [2024-11-27 23:17:28,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:28,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:28,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:28,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:28,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:28,316 INFO L87 Difference]: Start difference. First operand 301 states and 422 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:29,118 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2024-11-27 23:17:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:29,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2024-11-27 23:17:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:29,122 INFO L225 Difference]: With dead ends: 348 [2024-11-27 23:17:29,122 INFO L226 Difference]: Without dead ends: 344 [2024-11-27 23:17:29,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:29,123 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 142 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:29,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 227 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:17:29,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-27 23:17:29,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 302. [2024-11-27 23:17:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 217 states have (on average 1.7142857142857142) internal successors, (372), 276 states have internal predecessors, (372), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2024-11-27 23:17:29,145 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 45 [2024-11-27 23:17:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:29,146 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2024-11-27 23:17:29,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:17:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2024-11-27 23:17:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 23:17:29,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:29,150 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:29,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:29,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 23:17:29,351 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:29,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1259260686, now seen corresponding path program 1 times [2024-11-27 23:17:29,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856428944] [2024-11-27 23:17:29,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:29,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452629285] [2024-11-27 23:17:29,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:29,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:29,374 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:29,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:17:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:29,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:17:29,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:29,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:29,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856428944] [2024-11-27 23:17:29,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452629285] [2024-11-27 23:17:29,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452629285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:29,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:29,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:29,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919900794] [2024-11-27 23:17:29,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:29,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:29,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:29,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:29,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:29,458 INFO L87 Difference]: Start difference. First operand 302 states and 418 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:29,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:29,527 INFO L93 Difference]: Finished difference Result 350 states and 442 transitions. [2024-11-27 23:17:29,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:29,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2024-11-27 23:17:29,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:29,529 INFO L225 Difference]: With dead ends: 350 [2024-11-27 23:17:29,529 INFO L226 Difference]: Without dead ends: 346 [2024-11-27 23:17:29,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:29,530 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:29,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 284 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:17:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-27 23:17:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 307. [2024-11-27 23:17:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6923076923076923) internal successors, (374), 280 states have internal predecessors, (374), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 23:17:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 422 transitions. [2024-11-27 23:17:29,551 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 422 transitions. Word has length 49 [2024-11-27 23:17:29,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:29,551 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 422 transitions. [2024-11-27 23:17:29,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:29,551 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 422 transitions. [2024-11-27 23:17:29,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 23:17:29,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:29,552 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:29,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:29,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 23:17:29,753 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:29,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1325184650, now seen corresponding path program 1 times [2024-11-27 23:17:29,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:29,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945497174] [2024-11-27 23:17:29,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:29,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:29,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:29,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945497174] [2024-11-27 23:17:29,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945497174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:29,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476710776] [2024-11-27 23:17:29,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:29,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:29,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:29,888 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:29,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:17:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:29,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:29,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:30,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:30,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476710776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:30,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:30,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:17:30,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858279183] [2024-11-27 23:17:30,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:30,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:30,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:30,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:30,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:30,029 INFO L87 Difference]: Start difference. First operand 307 states and 422 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:30,322 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2024-11-27 23:17:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:30,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2024-11-27 23:17:30,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:30,324 INFO L225 Difference]: With dead ends: 328 [2024-11-27 23:17:30,324 INFO L226 Difference]: Without dead ends: 326 [2024-11-27 23:17:30,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:30,325 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 163 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:30,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 214 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:17:30,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-27 23:17:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2024-11-27 23:17:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6787330316742082) internal successors, (371), 280 states have internal predecessors, (371), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 23:17:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 419 transitions. [2024-11-27 23:17:30,351 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 419 transitions. Word has length 51 [2024-11-27 23:17:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:30,351 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 419 transitions. [2024-11-27 23:17:30,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 419 transitions. [2024-11-27 23:17:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 23:17:30,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:30,352 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:30,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:17:30,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 23:17:30,553 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:30,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:30,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1868949008, now seen corresponding path program 1 times [2024-11-27 23:17:30,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:30,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699107992] [2024-11-27 23:17:30,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:30,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 23:17:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699107992] [2024-11-27 23:17:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699107992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049284151] [2024-11-27 23:17:30,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:30,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:30,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:30,674 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:30,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:17:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:30,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:30,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:30,815 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:30,815 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:30,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049284151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:30,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:30,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:17:30,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274215395] [2024-11-27 23:17:30,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:30,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:30,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:30,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:30,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:30,817 INFO L87 Difference]: Start difference. First operand 307 states and 419 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:31,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:31,016 INFO L93 Difference]: Finished difference Result 328 states and 423 transitions. [2024-11-27 23:17:31,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:31,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2024-11-27 23:17:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:31,020 INFO L225 Difference]: With dead ends: 328 [2024-11-27 23:17:31,020 INFO L226 Difference]: Without dead ends: 326 [2024-11-27 23:17:31,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:31,021 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 225 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:31,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 196 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:31,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-27 23:17:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2024-11-27 23:17:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.665158371040724) internal successors, (368), 280 states have internal predecessors, (368), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 23:17:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 416 transitions. [2024-11-27 23:17:31,041 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 416 transitions. Word has length 52 [2024-11-27 23:17:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:31,042 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 416 transitions. [2024-11-27 23:17:31,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 416 transitions. [2024-11-27 23:17:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-27 23:17:31,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:31,043 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:31,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 23:17:31,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 23:17:31,248 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:31,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:31,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1095763850, now seen corresponding path program 1 times [2024-11-27 23:17:31,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:31,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320898209] [2024-11-27 23:17:31,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:31,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:31,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269154900] [2024-11-27 23:17:31,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:31,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:31,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:31,275 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:31,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:17:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:31,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:31,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:31,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:31,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:31,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320898209] [2024-11-27 23:17:31,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:31,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269154900] [2024-11-27 23:17:31,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269154900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:31,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:31,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:31,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907393734] [2024-11-27 23:17:31,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:31,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:31,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:31,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:31,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:31,378 INFO L87 Difference]: Start difference. First operand 307 states and 416 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:31,581 INFO L93 Difference]: Finished difference Result 344 states and 430 transitions. [2024-11-27 23:17:31,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:31,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2024-11-27 23:17:31,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:31,584 INFO L225 Difference]: With dead ends: 344 [2024-11-27 23:17:31,584 INFO L226 Difference]: Without dead ends: 342 [2024-11-27 23:17:31,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:31,586 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 136 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:31,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 283 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:31,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-27 23:17:31,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 308. [2024-11-27 23:17:31,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 222 states have (on average 1.6531531531531531) internal successors, (367), 281 states have internal predecessors, (367), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 23:17:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 415 transitions. [2024-11-27 23:17:31,606 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 415 transitions. Word has length 53 [2024-11-27 23:17:31,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:31,606 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 415 transitions. [2024-11-27 23:17:31,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:31,606 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 415 transitions. [2024-11-27 23:17:31,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 23:17:31,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:31,607 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:31,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:31,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 23:17:31,807 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:31,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:31,808 INFO L85 PathProgramCache]: Analyzing trace with hash 391059108, now seen corresponding path program 1 times [2024-11-27 23:17:31,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:31,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683875635] [2024-11-27 23:17:31,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:31,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:31,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036455339] [2024-11-27 23:17:31,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:31,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:31,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:31,823 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:31,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:17:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:31,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:31,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:31,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:31,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:31,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683875635] [2024-11-27 23:17:31,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:31,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036455339] [2024-11-27 23:17:31,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036455339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:31,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:31,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840370296] [2024-11-27 23:17:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:31,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:31,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:31,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:31,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:31,923 INFO L87 Difference]: Start difference. First operand 308 states and 415 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:32,184 INFO L93 Difference]: Finished difference Result 344 states and 427 transitions. [2024-11-27 23:17:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:32,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2024-11-27 23:17:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:32,186 INFO L225 Difference]: With dead ends: 344 [2024-11-27 23:17:32,186 INFO L226 Difference]: Without dead ends: 329 [2024-11-27 23:17:32,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:32,187 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:32,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 287 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-27 23:17:32,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 296. [2024-11-27 23:17:32,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6729857819905214) internal successors, (353), 270 states have internal predecessors, (353), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 399 transitions. [2024-11-27 23:17:32,206 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 399 transitions. Word has length 54 [2024-11-27 23:17:32,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:32,206 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 399 transitions. [2024-11-27 23:17:32,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:17:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 399 transitions. [2024-11-27 23:17:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 23:17:32,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:32,207 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:32,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:32,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:17:32,408 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:32,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:32,408 INFO L85 PathProgramCache]: Analyzing trace with hash 299559188, now seen corresponding path program 1 times [2024-11-27 23:17:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490595712] [2024-11-27 23:17:32,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:32,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:32,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449117756] [2024-11-27 23:17:32,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:32,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:32,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:32,426 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:32,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 23:17:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:32,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:32,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-27 23:17:32,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:32,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490595712] [2024-11-27 23:17:32,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:32,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449117756] [2024-11-27 23:17:32,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449117756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:32,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501794695] [2024-11-27 23:17:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:32,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:32,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:32,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:32,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:32,615 INFO L87 Difference]: Start difference. First operand 296 states and 399 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:17:32,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:32,982 INFO L93 Difference]: Finished difference Result 320 states and 420 transitions. [2024-11-27 23:17:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:32,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-27 23:17:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:32,985 INFO L225 Difference]: With dead ends: 320 [2024-11-27 23:17:32,985 INFO L226 Difference]: Without dead ends: 319 [2024-11-27 23:17:32,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:32,986 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 157 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:32,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:17:32,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-27 23:17:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2024-11-27 23:17:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6682464454976302) internal successors, (352), 270 states have internal predecessors, (352), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2024-11-27 23:17:33,010 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 398 transitions. Word has length 62 [2024-11-27 23:17:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:33,011 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 398 transitions. [2024-11-27 23:17:33,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:17:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 398 transitions. [2024-11-27 23:17:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 23:17:33,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:33,012 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:33,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:33,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 23:17:33,217 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:33,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:33,217 INFO L85 PathProgramCache]: Analyzing trace with hash 696400335, now seen corresponding path program 1 times [2024-11-27 23:17:33,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:33,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800036938] [2024-11-27 23:17:33,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:33,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017867713] [2024-11-27 23:17:33,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:33,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:33,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:33,247 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:33,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 23:17:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:33,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:33,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-27 23:17:33,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:33,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800036938] [2024-11-27 23:17:33,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:33,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017867713] [2024-11-27 23:17:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017867713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:33,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:33,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203468266] [2024-11-27 23:17:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:33,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:33,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:33,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:33,417 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:17:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:33,688 INFO L93 Difference]: Finished difference Result 320 states and 419 transitions. [2024-11-27 23:17:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:33,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-27 23:17:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:33,691 INFO L225 Difference]: With dead ends: 320 [2024-11-27 23:17:33,691 INFO L226 Difference]: Without dead ends: 319 [2024-11-27 23:17:33,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:33,691 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 156 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:33,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-27 23:17:33,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2024-11-27 23:17:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6635071090047393) internal successors, (351), 270 states have internal predecessors, (351), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 397 transitions. [2024-11-27 23:17:33,719 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 397 transitions. Word has length 63 [2024-11-27 23:17:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:33,719 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 397 transitions. [2024-11-27 23:17:33,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:17:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 397 transitions. [2024-11-27 23:17:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-27 23:17:33,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:33,721 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:33,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 23:17:33,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 23:17:33,922 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:33,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1272186614, now seen corresponding path program 1 times [2024-11-27 23:17:33,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:33,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910255114] [2024-11-27 23:17:33,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:33,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:33,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782185605] [2024-11-27 23:17:33,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:33,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:33,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:33,947 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:33,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 23:17:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:34,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:17:34,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 23:17:34,177 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:34,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:34,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910255114] [2024-11-27 23:17:34,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:34,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782185605] [2024-11-27 23:17:34,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782185605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:34,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:34,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:34,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729521107] [2024-11-27 23:17:34,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:34,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:34,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:34,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:34,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:34,179 INFO L87 Difference]: Start difference. First operand 296 states and 397 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:34,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:34,432 INFO L93 Difference]: Finished difference Result 322 states and 418 transitions. [2024-11-27 23:17:34,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:34,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-27 23:17:34,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:34,434 INFO L225 Difference]: With dead ends: 322 [2024-11-27 23:17:34,434 INFO L226 Difference]: Without dead ends: 321 [2024-11-27 23:17:34,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:34,435 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 88 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:34,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 224 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:34,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-27 23:17:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2024-11-27 23:17:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6540284360189574) internal successors, (349), 270 states have internal predecessors, (349), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 395 transitions. [2024-11-27 23:17:34,456 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 395 transitions. Word has length 73 [2024-11-27 23:17:34,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:34,456 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 395 transitions. [2024-11-27 23:17:34,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 395 transitions. [2024-11-27 23:17:34,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-27 23:17:34,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:34,457 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:34,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 23:17:34,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:34,661 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:34,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -783079258, now seen corresponding path program 1 times [2024-11-27 23:17:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:34,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437690929] [2024-11-27 23:17:34,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:34,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:34,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945652405] [2024-11-27 23:17:34,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:34,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:34,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:34,682 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:34,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 23:17:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:34,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:17:34,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 23:17:36,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:36,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437690929] [2024-11-27 23:17:36,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945652405] [2024-11-27 23:17:36,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945652405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:36,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:36,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:36,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72257972] [2024-11-27 23:17:36,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:36,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:36,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:36,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-27 23:17:36,354 INFO L87 Difference]: Start difference. First operand 296 states and 395 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:40,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:17:41,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:17:43,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:17:44,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:17:45,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:45,196 INFO L93 Difference]: Finished difference Result 322 states and 416 transitions. [2024-11-27 23:17:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:45,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-27 23:17:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:45,199 INFO L225 Difference]: With dead ends: 322 [2024-11-27 23:17:45,199 INFO L226 Difference]: Without dead ends: 321 [2024-11-27 23:17:45,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-27 23:17:45,199 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 43 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:45,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 321 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 8.8s Time] [2024-11-27 23:17:45,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-27 23:17:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2024-11-27 23:17:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6445497630331753) internal successors, (347), 270 states have internal predecessors, (347), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 393 transitions. [2024-11-27 23:17:45,218 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 393 transitions. Word has length 74 [2024-11-27 23:17:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:45,218 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 393 transitions. [2024-11-27 23:17:45,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 393 transitions. [2024-11-27 23:17:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 23:17:45,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:45,219 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:45,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:45,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:45,424 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:45,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1494346892, now seen corresponding path program 1 times [2024-11-27 23:17:45,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:45,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145054172] [2024-11-27 23:17:45,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:45,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:45,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872892685] [2024-11-27 23:17:45,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:45,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:45,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:45,452 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:45,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 23:17:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:45,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:45,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 23:17:45,581 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:45,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:45,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145054172] [2024-11-27 23:17:45,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:45,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872892685] [2024-11-27 23:17:45,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872892685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:45,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:45,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:45,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892177362] [2024-11-27 23:17:45,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:45,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:45,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:45,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:45,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:45,583 INFO L87 Difference]: Start difference. First operand 296 states and 393 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:45,845 INFO L93 Difference]: Finished difference Result 315 states and 404 transitions. [2024-11-27 23:17:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:45,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2024-11-27 23:17:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:45,847 INFO L225 Difference]: With dead ends: 315 [2024-11-27 23:17:45,847 INFO L226 Difference]: Without dead ends: 313 [2024-11-27 23:17:45,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:45,848 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 90 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:45,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 256 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:45,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-27 23:17:45,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-27 23:17:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6255924170616114) internal successors, (343), 270 states have internal predecessors, (343), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 389 transitions. [2024-11-27 23:17:45,867 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 389 transitions. Word has length 75 [2024-11-27 23:17:45,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:45,867 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 389 transitions. [2024-11-27 23:17:45,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 389 transitions. [2024-11-27 23:17:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 23:17:45,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:45,868 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:45,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:46,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:46,072 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:46,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:46,073 INFO L85 PathProgramCache]: Analyzing trace with hash -919886488, now seen corresponding path program 1 times [2024-11-27 23:17:46,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:46,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678124146] [2024-11-27 23:17:46,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:46,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775323887] [2024-11-27 23:17:46,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:46,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:46,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:46,091 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:46,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 23:17:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:46,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:17:46,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 23:17:46,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:46,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:46,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678124146] [2024-11-27 23:17:46,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:46,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775323887] [2024-11-27 23:17:46,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775323887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:46,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:46,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:46,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651550491] [2024-11-27 23:17:46,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:46,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:46,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:46,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:46,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:46,272 INFO L87 Difference]: Start difference. First operand 296 states and 389 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:47,073 INFO L93 Difference]: Finished difference Result 315 states and 400 transitions. [2024-11-27 23:17:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:47,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-27 23:17:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:47,076 INFO L225 Difference]: With dead ends: 315 [2024-11-27 23:17:47,076 INFO L226 Difference]: Without dead ends: 313 [2024-11-27 23:17:47,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:47,078 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 54 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:47,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 323 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:17:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-27 23:17:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-27 23:17:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 270 states have internal predecessors, (339), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 385 transitions. [2024-11-27 23:17:47,096 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 385 transitions. Word has length 76 [2024-11-27 23:17:47,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:47,096 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 385 transitions. [2024-11-27 23:17:47,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 385 transitions. [2024-11-27 23:17:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-27 23:17:47,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:47,098 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:47,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:47,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:47,298 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:47,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2122139886, now seen corresponding path program 1 times [2024-11-27 23:17:47,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:47,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242984087] [2024-11-27 23:17:47,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211322019] [2024-11-27 23:17:47,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:47,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:47,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:47,316 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:47,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 23:17:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:47,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:17:47,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-27 23:17:47,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-27 23:17:47,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:47,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242984087] [2024-11-27 23:17:47,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:47,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211322019] [2024-11-27 23:17:47,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211322019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:17:47,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:17:47,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 23:17:47,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33631309] [2024-11-27 23:17:47,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:47,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:17:47,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:47,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:17:47,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:17:47,786 INFO L87 Difference]: Start difference. First operand 296 states and 385 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:17:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:48,492 INFO L93 Difference]: Finished difference Result 314 states and 386 transitions. [2024-11-27 23:17:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:17:48,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 81 [2024-11-27 23:17:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:48,495 INFO L225 Difference]: With dead ends: 314 [2024-11-27 23:17:48,495 INFO L226 Difference]: Without dead ends: 313 [2024-11-27 23:17:48,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:17:48,496 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 295 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:48,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 353 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:17:48,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-27 23:17:48,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-27 23:17:48,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5924170616113744) internal successors, (336), 270 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:48,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 382 transitions. [2024-11-27 23:17:48,526 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 382 transitions. Word has length 81 [2024-11-27 23:17:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:48,526 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 382 transitions. [2024-11-27 23:17:48,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:17:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 382 transitions. [2024-11-27 23:17:48,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 23:17:48,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:48,529 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:48,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:48,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:48,730 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:48,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1361826898, now seen corresponding path program 1 times [2024-11-27 23:17:48,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:48,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933496120] [2024-11-27 23:17:48,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:48,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:48,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208437914] [2024-11-27 23:17:48,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:48,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:48,751 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:48,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 23:17:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:48,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:17:48,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-27 23:17:49,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-27 23:17:49,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:49,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933496120] [2024-11-27 23:17:49,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:49,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208437914] [2024-11-27 23:17:49,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208437914] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:17:49,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:17:49,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 23:17:49,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688740494] [2024-11-27 23:17:49,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:49,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:17:49,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:49,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:17:49,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:49,696 INFO L87 Difference]: Start difference. First operand 296 states and 382 transitions. Second operand has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-27 23:17:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:50,677 INFO L93 Difference]: Finished difference Result 314 states and 383 transitions. [2024-11-27 23:17:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:17:50,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 82 [2024-11-27 23:17:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:50,679 INFO L225 Difference]: With dead ends: 314 [2024-11-27 23:17:50,679 INFO L226 Difference]: Without dead ends: 313 [2024-11-27 23:17:50,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:17:50,680 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 308 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:50,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 492 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:17:50,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-27 23:17:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-27 23:17:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 270 states have internal predecessors, (333), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:50,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 379 transitions. [2024-11-27 23:17:50,700 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 379 transitions. Word has length 82 [2024-11-27 23:17:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:50,701 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 379 transitions. [2024-11-27 23:17:50,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-27 23:17:50,701 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 379 transitions. [2024-11-27 23:17:50,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 23:17:50,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:50,702 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:50,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:50,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:17:50,906 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:50,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash 733039252, now seen corresponding path program 1 times [2024-11-27 23:17:50,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:50,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697596779] [2024-11-27 23:17:50,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:50,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839364347] [2024-11-27 23:17:50,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:50,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:50,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:50,928 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:50,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 23:17:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:50,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:17:51,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-27 23:17:51,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:51,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697596779] [2024-11-27 23:17:51,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839364347] [2024-11-27 23:17:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839364347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:51,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:51,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:17:51,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319237413] [2024-11-27 23:17:51,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:51,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:17:51,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:51,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:17:51,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:17:51,859 INFO L87 Difference]: Start difference. First operand 296 states and 379 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:52,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:52,567 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2024-11-27 23:17:52,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:17:52,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-11-27 23:17:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:52,569 INFO L225 Difference]: With dead ends: 314 [2024-11-27 23:17:52,569 INFO L226 Difference]: Without dead ends: 311 [2024-11-27 23:17:52,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:17:52,570 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:52,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 313 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:17:52,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-27 23:17:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2024-11-27 23:17:52,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5497630331753554) internal successors, (327), 270 states have internal predecessors, (327), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 373 transitions. [2024-11-27 23:17:52,590 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 373 transitions. Word has length 83 [2024-11-27 23:17:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:52,590 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 373 transitions. [2024-11-27 23:17:52,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:17:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 373 transitions. [2024-11-27 23:17:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 23:17:52,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:52,592 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:52,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:52,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:52,796 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:52,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:52,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1249380464, now seen corresponding path program 1 times [2024-11-27 23:17:52,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:52,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921621547] [2024-11-27 23:17:52,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:52,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:52,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754809096] [2024-11-27 23:17:52,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:52,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:52,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:52,817 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:52,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 23:17:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:52,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:17:52,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-27 23:17:53,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:53,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:53,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921621547] [2024-11-27 23:17:53,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:53,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754809096] [2024-11-27 23:17:53,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754809096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:53,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:53,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:17:53,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687900058] [2024-11-27 23:17:53,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:53,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:17:53,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:53,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:17:53,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:17:53,698 INFO L87 Difference]: Start difference. First operand 296 states and 373 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-27 23:17:54,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:54,232 INFO L93 Difference]: Finished difference Result 304 states and 376 transitions. [2024-11-27 23:17:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:17:54,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2024-11-27 23:17:54,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:54,234 INFO L225 Difference]: With dead ends: 304 [2024-11-27 23:17:54,234 INFO L226 Difference]: Without dead ends: 301 [2024-11-27 23:17:54,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:17:54,235 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 241 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:54,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 238 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:17:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-27 23:17:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 296. [2024-11-27 23:17:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5213270142180095) internal successors, (321), 270 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 367 transitions. [2024-11-27 23:17:54,254 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 367 transitions. Word has length 84 [2024-11-27 23:17:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:54,254 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 367 transitions. [2024-11-27 23:17:54,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-27 23:17:54,255 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 367 transitions. [2024-11-27 23:17:54,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:17:54,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:54,256 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:54,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-27 23:17:54,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:54,456 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:54,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:54,457 INFO L85 PathProgramCache]: Analyzing trace with hash -601143357, now seen corresponding path program 1 times [2024-11-27 23:17:54,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:54,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76689499] [2024-11-27 23:17:54,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:54,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:17:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76689499] [2024-11-27 23:17:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76689499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:54,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:54,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:54,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223603862] [2024-11-27 23:17:54,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:54,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:54,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:54,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:54,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:54,517 INFO L87 Difference]: Start difference. First operand 296 states and 367 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 23:17:54,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:54,611 INFO L93 Difference]: Finished difference Result 296 states and 367 transitions. [2024-11-27 23:17:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:54,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 97 [2024-11-27 23:17:54,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:54,613 INFO L225 Difference]: With dead ends: 296 [2024-11-27 23:17:54,613 INFO L226 Difference]: Without dead ends: 295 [2024-11-27 23:17:54,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:54,614 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:54,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:17:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-27 23:17:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-11-27 23:17:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 269 states have internal predecessors, (317), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 363 transitions. [2024-11-27 23:17:54,633 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 363 transitions. Word has length 97 [2024-11-27 23:17:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:54,633 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 363 transitions. [2024-11-27 23:17:54,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 23:17:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 363 transitions. [2024-11-27 23:17:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-27 23:17:54,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:54,634 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:54,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:17:54,635 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:54,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1455574729, now seen corresponding path program 1 times [2024-11-27 23:17:54,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:54,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442612309] [2024-11-27 23:17:54,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:54,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:17:54,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:54,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442612309] [2024-11-27 23:17:54,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442612309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:54,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:54,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:17:54,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868305929] [2024-11-27 23:17:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:54,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:17:54,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:54,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:17:54,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:17:54,780 INFO L87 Difference]: Start difference. First operand 295 states and 363 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 23:17:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:55,583 INFO L93 Difference]: Finished difference Result 299 states and 364 transitions. [2024-11-27 23:17:55,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:17:55,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 98 [2024-11-27 23:17:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:55,585 INFO L225 Difference]: With dead ends: 299 [2024-11-27 23:17:55,585 INFO L226 Difference]: Without dead ends: 298 [2024-11-27 23:17:55,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:17:55,585 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 451 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:55,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 218 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:17:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-27 23:17:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2024-11-27 23:17:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.4976303317535544) internal successors, (316), 269 states have internal predecessors, (316), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:55,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 362 transitions. [2024-11-27 23:17:55,621 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 362 transitions. Word has length 98 [2024-11-27 23:17:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:55,621 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 362 transitions. [2024-11-27 23:17:55,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 23:17:55,622 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 362 transitions. [2024-11-27 23:17:55,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 23:17:55,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:55,623 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:55,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 23:17:55,623 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:55,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1350489719, now seen corresponding path program 1 times [2024-11-27 23:17:55,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:55,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600061319] [2024-11-27 23:17:55,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:55,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:17:55,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:55,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600061319] [2024-11-27 23:17:55,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600061319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:55,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:55,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:17:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732191713] [2024-11-27 23:17:55,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:55,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:17:55,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:55,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:17:55,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:55,766 INFO L87 Difference]: Start difference. First operand 295 states and 362 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:17:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:55,861 INFO L93 Difference]: Finished difference Result 310 states and 373 transitions. [2024-11-27 23:17:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:17:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-11-27 23:17:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:55,863 INFO L225 Difference]: With dead ends: 310 [2024-11-27 23:17:55,864 INFO L226 Difference]: Without dead ends: 309 [2024-11-27 23:17:55,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:55,865 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 14 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:55,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 428 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:17:55,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-27 23:17:55,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 300. [2024-11-27 23:17:55,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 274 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 367 transitions. [2024-11-27 23:17:55,884 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 367 transitions. Word has length 100 [2024-11-27 23:17:55,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:55,885 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 367 transitions. [2024-11-27 23:17:55,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:17:55,885 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 367 transitions. [2024-11-27 23:17:55,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 23:17:55,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:55,887 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:55,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 23:17:55,887 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:55,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1084491501, now seen corresponding path program 1 times [2024-11-27 23:17:55,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:55,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926175224] [2024-11-27 23:17:55,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:55,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:55,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832687711] [2024-11-27 23:17:55,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:55,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:55,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:55,908 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:55,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 23:17:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:55,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:17:55,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:17:56,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:17:56,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:56,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926175224] [2024-11-27 23:17:56,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:56,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832687711] [2024-11-27 23:17:56,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832687711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:56,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:56,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128218643] [2024-11-27 23:17:56,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:56,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:56,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:56,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:56,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:56,181 INFO L87 Difference]: Start difference. First operand 300 states and 367 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:17:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:56,455 INFO L93 Difference]: Finished difference Result 310 states and 371 transitions. [2024-11-27 23:17:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:56,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-27 23:17:56,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:56,456 INFO L225 Difference]: With dead ends: 310 [2024-11-27 23:17:56,456 INFO L226 Difference]: Without dead ends: 309 [2024-11-27 23:17:56,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:56,456 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 15 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:56,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 307 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:17:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-27 23:17:56,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 302. [2024-11-27 23:17:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.481651376146789) internal successors, (323), 276 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 369 transitions. [2024-11-27 23:17:56,477 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 369 transitions. Word has length 101 [2024-11-27 23:17:56,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:56,477 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 369 transitions. [2024-11-27 23:17:56,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:17:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 369 transitions. [2024-11-27 23:17:56,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 23:17:56,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:56,479 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:56,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 23:17:56,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:56,682 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:56,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1036776338, now seen corresponding path program 1 times [2024-11-27 23:17:56,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:56,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913953300] [2024-11-27 23:17:56,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:56,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:56,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516960661] [2024-11-27 23:17:56,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:56,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:56,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:56,706 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:56,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 23:17:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:56,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:17:56,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-27 23:17:57,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:57,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:57,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913953300] [2024-11-27 23:17:57,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:57,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516960661] [2024-11-27 23:17:57,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516960661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:57,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:57,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:17:57,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418756277] [2024-11-27 23:17:57,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:57,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:17:57,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:57,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:17:57,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:17:57,132 INFO L87 Difference]: Start difference. First operand 302 states and 369 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:17:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:57,660 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2024-11-27 23:17:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:17:57,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2024-11-27 23:17:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:57,662 INFO L225 Difference]: With dead ends: 305 [2024-11-27 23:17:57,662 INFO L226 Difference]: Without dead ends: 303 [2024-11-27 23:17:57,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:17:57,663 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 193 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:57,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 472 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:17:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-27 23:17:57,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2024-11-27 23:17:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.4724770642201834) internal successors, (321), 276 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:17:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 367 transitions. [2024-11-27 23:17:57,683 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 367 transitions. Word has length 101 [2024-11-27 23:17:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:57,684 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 367 transitions. [2024-11-27 23:17:57,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:17:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 367 transitions. [2024-11-27 23:17:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 23:17:57,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:57,686 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:57,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:57,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-27 23:17:57,887 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:57,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2075295333, now seen corresponding path program 1 times [2024-11-27 23:17:57,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:57,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060691509] [2024-11-27 23:17:57,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:57,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:17:57,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574029236] [2024-11-27 23:17:57,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:57,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:57,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:17:57,906 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:17:57,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 23:17:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:57,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 23:17:57,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:17:58,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:17:58,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:58,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060691509] [2024-11-27 23:17:58,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:17:58,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574029236] [2024-11-27 23:17:58,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574029236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:17:58,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:17:58,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:17:58,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829881994] [2024-11-27 23:17:58,538 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:17:58,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:17:58,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:58,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:17:58,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:58,539 INFO L87 Difference]: Start difference. First operand 302 states and 367 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 23:17:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:59,023 INFO L93 Difference]: Finished difference Result 351 states and 423 transitions. [2024-11-27 23:17:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:17:59,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-27 23:17:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:59,025 INFO L225 Difference]: With dead ends: 351 [2024-11-27 23:17:59,025 INFO L226 Difference]: Without dead ends: 349 [2024-11-27 23:17:59,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:17:59,026 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 445 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:59,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 355 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:17:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-27 23:17:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 347. [2024-11-27 23:17:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4131274131274132) internal successors, (366), 317 states have internal predecessors, (366), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:17:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 420 transitions. [2024-11-27 23:17:59,053 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 420 transitions. Word has length 102 [2024-11-27 23:17:59,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:59,053 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 420 transitions. [2024-11-27 23:17:59,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 23:17:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 420 transitions. [2024-11-27 23:17:59,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:17:59,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:59,055 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:59,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-27 23:17:59,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:17:59,255 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:59,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash 90354192, now seen corresponding path program 1 times [2024-11-27 23:17:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:59,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659912982] [2024-11-27 23:17:59,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:59,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:17:59,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:59,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659912982] [2024-11-27 23:17:59,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659912982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:59,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:59,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:17:59,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128968815] [2024-11-27 23:17:59,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:59,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:17:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:59,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:17:59,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:59,341 INFO L87 Difference]: Start difference. First operand 347 states and 420 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 23:17:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:59,692 INFO L93 Difference]: Finished difference Result 378 states and 420 transitions. [2024-11-27 23:17:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:17:59,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2024-11-27 23:17:59,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:59,694 INFO L225 Difference]: With dead ends: 378 [2024-11-27 23:17:59,695 INFO L226 Difference]: Without dead ends: 377 [2024-11-27 23:17:59,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:17:59,695 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 133 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:59,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 546 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:17:59,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-27 23:17:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 347. [2024-11-27 23:17:59,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4015444015444016) internal successors, (363), 317 states have internal predecessors, (363), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:17:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2024-11-27 23:17:59,721 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 103 [2024-11-27 23:17:59,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:59,721 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2024-11-27 23:17:59,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 23:17:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2024-11-27 23:17:59,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 23:17:59,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:59,722 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:59,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-27 23:17:59,723 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:17:59,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:59,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1342134917, now seen corresponding path program 1 times [2024-11-27 23:17:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:59,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575020973] [2024-11-27 23:17:59,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:59,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:17:59,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:59,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575020973] [2024-11-27 23:17:59,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575020973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:59,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:59,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:17:59,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827790975] [2024-11-27 23:17:59,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:59,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:17:59,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:59,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:17:59,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:59,899 INFO L87 Difference]: Start difference. First operand 347 states and 417 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:17:59,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:59,995 INFO L93 Difference]: Finished difference Result 360 states and 427 transitions. [2024-11-27 23:17:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:17:59,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2024-11-27 23:17:59,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:59,997 INFO L225 Difference]: With dead ends: 360 [2024-11-27 23:17:59,997 INFO L226 Difference]: Without dead ends: 359 [2024-11-27 23:17:59,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:59,998 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 13 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:59,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 434 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:17:59,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-27 23:18:00,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 352. [2024-11-27 23:18:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.4015151515151516) internal successors, (370), 322 states have internal predecessors, (370), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:18:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 424 transitions. [2024-11-27 23:18:00,023 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 424 transitions. Word has length 104 [2024-11-27 23:18:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:00,023 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 424 transitions. [2024-11-27 23:18:00,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:18:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 424 transitions. [2024-11-27 23:18:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 23:18:00,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:00,024 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:00,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 23:18:00,025 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:00,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1493987267, now seen corresponding path program 1 times [2024-11-27 23:18:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:00,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753250259] [2024-11-27 23:18:00,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:00,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906242660] [2024-11-27 23:18:00,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:00,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:00,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:00,044 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:00,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 23:18:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:00,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:18:00,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:00,489 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-27 23:18:00,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-27 23:18:00,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753250259] [2024-11-27 23:18:00,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:00,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906242660] [2024-11-27 23:18:00,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906242660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:18:00,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:18:00,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-27 23:18:00,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756144012] [2024-11-27 23:18:00,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:00,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:18:00,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:00,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:18:00,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:18:00,776 INFO L87 Difference]: Start difference. First operand 352 states and 424 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-27 23:18:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:02,021 INFO L93 Difference]: Finished difference Result 357 states and 425 transitions. [2024-11-27 23:18:02,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:18:02,022 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2024-11-27 23:18:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:02,023 INFO L225 Difference]: With dead ends: 357 [2024-11-27 23:18:02,023 INFO L226 Difference]: Without dead ends: 356 [2024-11-27 23:18:02,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:18:02,024 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 374 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:02,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 583 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:18:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-27 23:18:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2024-11-27 23:18:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 322 states have internal predecessors, (367), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:18:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 421 transitions. [2024-11-27 23:18:02,065 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 421 transitions. Word has length 104 [2024-11-27 23:18:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:02,065 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 421 transitions. [2024-11-27 23:18:02,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-27 23:18:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 421 transitions. [2024-11-27 23:18:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 23:18:02,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:02,066 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:02,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 23:18:02,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-27 23:18:02,270 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:02,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:02,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1343490711, now seen corresponding path program 1 times [2024-11-27 23:18:02,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:02,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148197177] [2024-11-27 23:18:02,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:02,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:02,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556027071] [2024-11-27 23:18:02,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:02,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:02,293 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:02,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 23:18:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:02,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:18:02,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:18:02,559 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:18:02,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:02,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148197177] [2024-11-27 23:18:02,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:02,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556027071] [2024-11-27 23:18:02,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556027071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:02,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:02,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:18:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879672494] [2024-11-27 23:18:02,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:02,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:18:02,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:02,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:18:02,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:18:02,561 INFO L87 Difference]: Start difference. First operand 352 states and 421 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:18:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:02,815 INFO L93 Difference]: Finished difference Result 358 states and 424 transitions. [2024-11-27 23:18:02,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:18:02,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2024-11-27 23:18:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:02,817 INFO L225 Difference]: With dead ends: 358 [2024-11-27 23:18:02,817 INFO L226 Difference]: Without dead ends: 357 [2024-11-27 23:18:02,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:18:02,817 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 54 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:02,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 503 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:18:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-27 23:18:02,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-11-27 23:18:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.387218045112782) internal successors, (369), 324 states have internal predecessors, (369), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:18:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 423 transitions. [2024-11-27 23:18:02,846 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 423 transitions. Word has length 105 [2024-11-27 23:18:02,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:02,846 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 423 transitions. [2024-11-27 23:18:02,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:18:02,847 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 423 transitions. [2024-11-27 23:18:02,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:18:02,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:02,849 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:02,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-27 23:18:03,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 23:18:03,050 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:03,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:03,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1690580813, now seen corresponding path program 1 times [2024-11-27 23:18:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:03,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661143883] [2024-11-27 23:18:03,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:03,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-27 23:18:03,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:03,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661143883] [2024-11-27 23:18:03,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661143883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:03,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986823428] [2024-11-27 23:18:03,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:03,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:03,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:03,241 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:03,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 23:18:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:03,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:18:03,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-27 23:18:03,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-27 23:18:04,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986823428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:18:04,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:18:04,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-27 23:18:04,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985176877] [2024-11-27 23:18:04,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:04,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:18:04,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:04,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:18:04,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:18:04,084 INFO L87 Difference]: Start difference. First operand 354 states and 423 transitions. Second operand has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-27 23:18:05,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:05,342 INFO L93 Difference]: Finished difference Result 740 states and 851 transitions. [2024-11-27 23:18:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:18:05,343 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2024-11-27 23:18:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:05,345 INFO L225 Difference]: With dead ends: 740 [2024-11-27 23:18:05,345 INFO L226 Difference]: Without dead ends: 711 [2024-11-27 23:18:05,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:18:05,346 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1155 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:05,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 846 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:18:05,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-27 23:18:05,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 505. [2024-11-27 23:18:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 405 states have (on average 1.5506172839506174) internal successors, (628), 463 states have internal predecessors, (628), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:18:05,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 706 transitions. [2024-11-27 23:18:05,383 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 706 transitions. Word has length 107 [2024-11-27 23:18:05,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:05,384 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 706 transitions. [2024-11-27 23:18:05,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-27 23:18:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 706 transitions. [2024-11-27 23:18:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:18:05,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:05,385 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:05,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-27 23:18:05,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 23:18:05,586 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:05,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:05,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1150569117, now seen corresponding path program 1 times [2024-11-27 23:18:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:05,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070060150] [2024-11-27 23:18:05,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-27 23:18:05,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:05,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070060150] [2024-11-27 23:18:05,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070060150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:05,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578368999] [2024-11-27 23:18:05,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:05,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:05,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:05,911 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:05,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 23:18:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:05,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:18:05,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:18:06,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:18:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578368999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:06,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:06,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-11-27 23:18:06,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060807395] [2024-11-27 23:18:06,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:06,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:18:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:06,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:18:06,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:18:06,176 INFO L87 Difference]: Start difference. First operand 505 states and 706 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:18:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:07,726 INFO L93 Difference]: Finished difference Result 957 states and 1277 transitions. [2024-11-27 23:18:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:18:07,728 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2024-11-27 23:18:07,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:07,731 INFO L225 Difference]: With dead ends: 957 [2024-11-27 23:18:07,731 INFO L226 Difference]: Without dead ends: 956 [2024-11-27 23:18:07,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:18:07,732 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 722 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:07,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 851 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:18:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-27 23:18:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 698. [2024-11-27 23:18:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 582 states have (on average 1.6443298969072164) internal successors, (957), 640 states have internal predecessors, (957), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-27 23:18:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1067 transitions. [2024-11-27 23:18:07,783 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1067 transitions. Word has length 109 [2024-11-27 23:18:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:07,784 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1067 transitions. [2024-11-27 23:18:07,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:18:07,784 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1067 transitions. [2024-11-27 23:18:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:18:07,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:07,785 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:07,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-27 23:18:07,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 23:18:07,989 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:07,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1307904182, now seen corresponding path program 1 times [2024-11-27 23:18:07,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:07,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157308146] [2024-11-27 23:18:07,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:07,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041706639] [2024-11-27 23:18:08,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:08,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:08,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:08,020 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:08,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 23:18:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:08,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:18:08,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:18:08,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:08,417 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:18:08,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:08,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157308146] [2024-11-27 23:18:08,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:08,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041706639] [2024-11-27 23:18:08,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041706639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:18:08,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:18:08,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:18:08,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667722091] [2024-11-27 23:18:08,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:08,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:18:08,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:08,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:18:08,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:18:08,419 INFO L87 Difference]: Start difference. First operand 698 states and 1067 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-27 23:18:09,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:09,298 INFO L93 Difference]: Finished difference Result 1099 states and 1647 transitions. [2024-11-27 23:18:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:18:09,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 110 [2024-11-27 23:18:09,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:09,302 INFO L225 Difference]: With dead ends: 1099 [2024-11-27 23:18:09,302 INFO L226 Difference]: Without dead ends: 1098 [2024-11-27 23:18:09,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:18:09,303 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 758 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:09,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 658 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:18:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-27 23:18:09,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 851. [2024-11-27 23:18:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 723 states have (on average 1.6721991701244814) internal successors, (1209), 781 states have internal predecessors, (1209), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-27 23:18:09,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1343 transitions. [2024-11-27 23:18:09,361 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1343 transitions. Word has length 110 [2024-11-27 23:18:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:09,361 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1343 transitions. [2024-11-27 23:18:09,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-27 23:18:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1343 transitions. [2024-11-27 23:18:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 23:18:09,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:09,362 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:09,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-27 23:18:09,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 23:18:09,563 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:09,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:09,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1658250161, now seen corresponding path program 1 times [2024-11-27 23:18:09,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:09,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489665359] [2024-11-27 23:18:09,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:09,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:09,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699643698] [2024-11-27 23:18:09,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:09,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:09,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:09,596 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:09,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 23:18:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:09,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:18:09,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-27 23:18:10,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:10,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489665359] [2024-11-27 23:18:10,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699643698] [2024-11-27 23:18:10,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699643698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:10,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:10,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:18:10,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445826943] [2024-11-27 23:18:10,647 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:10,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:18:10,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:10,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:18:10,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:18:10,648 INFO L87 Difference]: Start difference. First operand 851 states and 1343 transitions. Second operand has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-27 23:18:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:11,845 INFO L93 Difference]: Finished difference Result 937 states and 1449 transitions. [2024-11-27 23:18:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:18:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 116 [2024-11-27 23:18:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:11,850 INFO L225 Difference]: With dead ends: 937 [2024-11-27 23:18:11,850 INFO L226 Difference]: Without dead ends: 934 [2024-11-27 23:18:11,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:18:11,851 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 604 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:11,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 405 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:18:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-27 23:18:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2024-11-27 23:18:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.67578125) internal successors, (1287), 826 states have internal predecessors, (1287), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 23:18:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1429 transitions. [2024-11-27 23:18:11,919 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1429 transitions. Word has length 116 [2024-11-27 23:18:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:11,919 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1429 transitions. [2024-11-27 23:18:11,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-27 23:18:11,919 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1429 transitions. [2024-11-27 23:18:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 23:18:11,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:11,920 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:11,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 23:18:12,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-27 23:18:12,125 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:12,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 133852643, now seen corresponding path program 1 times [2024-11-27 23:18:12,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:12,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023040807] [2024-11-27 23:18:12,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:12,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:12,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695297144] [2024-11-27 23:18:12,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:12,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:12,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:12,151 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:12,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 23:18:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:12,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:18:12,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:12,884 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-27 23:18:12,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:13,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:13,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023040807] [2024-11-27 23:18:13,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:13,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695297144] [2024-11-27 23:18:13,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695297144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:13,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:13,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:18:13,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810573698] [2024-11-27 23:18:13,402 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:13,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:18:13,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:13,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:18:13,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:18:13,403 INFO L87 Difference]: Start difference. First operand 900 states and 1429 transitions. Second operand has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-27 23:18:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:14,530 INFO L93 Difference]: Finished difference Result 935 states and 1445 transitions. [2024-11-27 23:18:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:18:14,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 117 [2024-11-27 23:18:14,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:14,535 INFO L225 Difference]: With dead ends: 935 [2024-11-27 23:18:14,535 INFO L226 Difference]: Without dead ends: 934 [2024-11-27 23:18:14,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:18:14,536 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 613 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:14,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 365 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:18:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-27 23:18:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2024-11-27 23:18:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.6731770833333333) internal successors, (1285), 826 states have internal predecessors, (1285), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 23:18:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1427 transitions. [2024-11-27 23:18:14,601 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1427 transitions. Word has length 117 [2024-11-27 23:18:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:14,602 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1427 transitions. [2024-11-27 23:18:14,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-27 23:18:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1427 transitions. [2024-11-27 23:18:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 23:18:14,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:14,603 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:14,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-27 23:18:14,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:14,806 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:14,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:14,807 INFO L85 PathProgramCache]: Analyzing trace with hash -145535279, now seen corresponding path program 1 times [2024-11-27 23:18:14,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:14,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226735747] [2024-11-27 23:18:14,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:14,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:14,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488259742] [2024-11-27 23:18:14,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:14,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:14,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:14,828 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:14,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 23:18:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:14,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:18:14,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-27 23:18:15,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:15,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226735747] [2024-11-27 23:18:15,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488259742] [2024-11-27 23:18:15,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488259742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:15,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:15,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:18:15,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456931039] [2024-11-27 23:18:15,392 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:15,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:18:15,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:15,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:18:15,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:18:15,393 INFO L87 Difference]: Start difference. First operand 900 states and 1427 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-27 23:18:15,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:15,905 INFO L93 Difference]: Finished difference Result 1041 states and 1629 transitions. [2024-11-27 23:18:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:18:15,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 118 [2024-11-27 23:18:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:15,908 INFO L225 Difference]: With dead ends: 1041 [2024-11-27 23:18:15,908 INFO L226 Difference]: Without dead ends: 1039 [2024-11-27 23:18:15,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:18:15,909 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 225 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:15,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 462 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:18:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-27 23:18:15,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1000. [2024-11-27 23:18:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 859 states have (on average 1.6891734575087312) internal successors, (1451), 917 states have internal predecessors, (1451), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 23:18:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1611 transitions. [2024-11-27 23:18:15,960 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1611 transitions. Word has length 118 [2024-11-27 23:18:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:15,960 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1611 transitions. [2024-11-27 23:18:15,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-27 23:18:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1611 transitions. [2024-11-27 23:18:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 23:18:15,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:15,962 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:15,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-27 23:18:16,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-27 23:18:16,163 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:16,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash -216626267, now seen corresponding path program 1 times [2024-11-27 23:18:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593902518] [2024-11-27 23:18:16,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:16,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110779337] [2024-11-27 23:18:16,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:16,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:16,187 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:16,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 23:18:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:16,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:18:16,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-27 23:18:16,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:16,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:16,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593902518] [2024-11-27 23:18:16,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:16,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110779337] [2024-11-27 23:18:16,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110779337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:16,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:16,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:18:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992869431] [2024-11-27 23:18:16,836 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:16,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:18:16,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:16,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:18:16,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:18:16,837 INFO L87 Difference]: Start difference. First operand 1000 states and 1611 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-27 23:18:17,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:17,293 INFO L93 Difference]: Finished difference Result 1041 states and 1624 transitions. [2024-11-27 23:18:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:18:17,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2024-11-27 23:18:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:17,297 INFO L225 Difference]: With dead ends: 1041 [2024-11-27 23:18:17,297 INFO L226 Difference]: Without dead ends: 1039 [2024-11-27 23:18:17,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:18:17,298 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 261 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:17,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 547 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:18:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-27 23:18:17,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1001. [2024-11-27 23:18:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 860 states have (on average 1.6837209302325582) internal successors, (1448), 918 states have internal predecessors, (1448), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 23:18:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1608 transitions. [2024-11-27 23:18:17,367 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1608 transitions. Word has length 119 [2024-11-27 23:18:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:17,367 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1608 transitions. [2024-11-27 23:18:17,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-27 23:18:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1608 transitions. [2024-11-27 23:18:17,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 23:18:17,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:17,369 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:17,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-27 23:18:17,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:17,569 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:17,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1874520403, now seen corresponding path program 1 times [2024-11-27 23:18:17,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:17,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091755794] [2024-11-27 23:18:17,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:17,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:17,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644896375] [2024-11-27 23:18:17,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:17,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:17,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:17,598 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:17,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 23:18:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:17,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:18:17,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-27 23:18:18,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:18,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091755794] [2024-11-27 23:18:18,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644896375] [2024-11-27 23:18:18,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644896375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:18,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:18,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:18:18,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638678326] [2024-11-27 23:18:18,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:18,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:18:18,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:18,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:18:18,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:18:18,162 INFO L87 Difference]: Start difference. First operand 1001 states and 1608 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-27 23:18:18,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:18,962 INFO L93 Difference]: Finished difference Result 1042 states and 1619 transitions. [2024-11-27 23:18:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:18:18,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2024-11-27 23:18:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:18,966 INFO L225 Difference]: With dead ends: 1042 [2024-11-27 23:18:18,966 INFO L226 Difference]: Without dead ends: 1039 [2024-11-27 23:18:18,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:18:18,967 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 260 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:18,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 407 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:18:18,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-27 23:18:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1004. [2024-11-27 23:18:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 863 states have (on average 1.6778679026651218) internal successors, (1448), 921 states have internal predecessors, (1448), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 23:18:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1608 transitions. [2024-11-27 23:18:19,039 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1608 transitions. Word has length 120 [2024-11-27 23:18:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:19,039 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1608 transitions. [2024-11-27 23:18:19,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-27 23:18:19,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1608 transitions. [2024-11-27 23:18:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 23:18:19,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:19,040 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:19,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-27 23:18:19,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:19,245 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:19,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:19,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2019409561, now seen corresponding path program 1 times [2024-11-27 23:18:19,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:19,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384319190] [2024-11-27 23:18:19,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:19,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:19,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730696128] [2024-11-27 23:18:19,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:19,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:19,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:19,264 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:19,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 23:18:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:19,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:18:19,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-27 23:18:19,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:19,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:19,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384319190] [2024-11-27 23:18:19,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:19,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730696128] [2024-11-27 23:18:19,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730696128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:19,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:19,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:18:19,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710146991] [2024-11-27 23:18:19,886 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:19,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:18:19,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:19,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:18:19,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:18:19,887 INFO L87 Difference]: Start difference. First operand 1004 states and 1608 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-27 23:18:20,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:20,561 INFO L93 Difference]: Finished difference Result 1041 states and 1613 transitions. [2024-11-27 23:18:20,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:18:20,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 121 [2024-11-27 23:18:20,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:20,563 INFO L225 Difference]: With dead ends: 1041 [2024-11-27 23:18:20,563 INFO L226 Difference]: Without dead ends: 1028 [2024-11-27 23:18:20,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:18:20,565 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 182 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:20,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 486 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:18:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-27 23:18:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-27 23:18:20,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.67016317016317) internal successors, (1433), 916 states have internal predecessors, (1433), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:18:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1591 transitions. [2024-11-27 23:18:20,645 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1591 transitions. Word has length 121 [2024-11-27 23:18:20,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:20,645 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1591 transitions. [2024-11-27 23:18:20,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-27 23:18:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1591 transitions. [2024-11-27 23:18:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-27 23:18:20,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:20,645 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:20,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-27 23:18:20,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:20,846 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:20,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:20,846 INFO L85 PathProgramCache]: Analyzing trace with hash 874466869, now seen corresponding path program 1 times [2024-11-27 23:18:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:20,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696435176] [2024-11-27 23:18:20,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:20,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:20,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019381318] [2024-11-27 23:18:20,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:20,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:20,871 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:20,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 23:18:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:20,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:18:20,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 6 proven. 32 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-27 23:18:21,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:25,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:25,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696435176] [2024-11-27 23:18:25,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:25,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019381318] [2024-11-27 23:18:25,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019381318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:25,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:25,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 23:18:25,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780002456] [2024-11-27 23:18:25,915 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:25,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:18:25,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:25,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:18:25,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-11-27 23:18:25,916 INFO L87 Difference]: Start difference. First operand 998 states and 1591 transitions. Second operand has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:26,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:26,944 INFO L93 Difference]: Finished difference Result 1022 states and 1607 transitions. [2024-11-27 23:18:26,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:18:26,945 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 127 [2024-11-27 23:18:26,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:26,949 INFO L225 Difference]: With dead ends: 1022 [2024-11-27 23:18:26,949 INFO L226 Difference]: Without dead ends: 1020 [2024-11-27 23:18:26,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=85, Invalid=294, Unknown=1, NotChecked=0, Total=380 [2024-11-27 23:18:26,950 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 640 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:26,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 445 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:18:26,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-27 23:18:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2024-11-27 23:18:27,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6655011655011656) internal successors, (1429), 916 states have internal predecessors, (1429), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:18:27,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1587 transitions. [2024-11-27 23:18:27,020 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1587 transitions. Word has length 127 [2024-11-27 23:18:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:27,020 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1587 transitions. [2024-11-27 23:18:27,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1587 transitions. [2024-11-27 23:18:27,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 23:18:27,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:27,021 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:27,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 23:18:27,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:27,223 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:27,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1338669258, now seen corresponding path program 1 times [2024-11-27 23:18:27,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:27,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677297368] [2024-11-27 23:18:27,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:27,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715637138] [2024-11-27 23:18:27,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:27,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:27,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:27,244 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:27,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 23:18:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:27,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:18:27,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-27 23:18:27,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:40,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:40,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677297368] [2024-11-27 23:18:40,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:40,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715637138] [2024-11-27 23:18:40,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715637138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:40,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:40,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 23:18:40,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423821822] [2024-11-27 23:18:40,446 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:40,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:18:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:40,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:18:40,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=167, Unknown=3, NotChecked=0, Total=210 [2024-11-27 23:18:40,447 INFO L87 Difference]: Start difference. First operand 998 states and 1587 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:41,484 INFO L93 Difference]: Finished difference Result 1022 states and 1603 transitions. [2024-11-27 23:18:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:18:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 128 [2024-11-27 23:18:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:41,487 INFO L225 Difference]: With dead ends: 1022 [2024-11-27 23:18:41,487 INFO L226 Difference]: Without dead ends: 1020 [2024-11-27 23:18:41,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=87, Invalid=290, Unknown=3, NotChecked=0, Total=380 [2024-11-27 23:18:41,488 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 399 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:41,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 466 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:18:41,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-27 23:18:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2024-11-27 23:18:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6608391608391608) internal successors, (1425), 916 states have internal predecessors, (1425), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:18:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1583 transitions. [2024-11-27 23:18:41,564 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1583 transitions. Word has length 128 [2024-11-27 23:18:41,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:41,564 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1583 transitions. [2024-11-27 23:18:41,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1583 transitions. [2024-11-27 23:18:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-27 23:18:41,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:41,565 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:41,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-27 23:18:41,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:41,765 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:41,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1450925865, now seen corresponding path program 1 times [2024-11-27 23:18:41,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:41,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506092446] [2024-11-27 23:18:41,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:41,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:41,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368852309] [2024-11-27 23:18:41,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:41,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:41,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:41,783 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:41,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 23:18:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:41,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:18:41,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-27 23:18:42,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:51,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:51,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506092446] [2024-11-27 23:18:51,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:51,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368852309] [2024-11-27 23:18:51,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368852309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:51,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:51,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:18:51,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118207021] [2024-11-27 23:18:51,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:51,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:18:51,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:51,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:18:51,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=280, Unknown=2, NotChecked=0, Total=342 [2024-11-27 23:18:51,219 INFO L87 Difference]: Start difference. First operand 998 states and 1583 transitions. Second operand has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:52,494 INFO L93 Difference]: Finished difference Result 1030 states and 1613 transitions. [2024-11-27 23:18:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:18:52,495 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 129 [2024-11-27 23:18:52,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:52,497 INFO L225 Difference]: With dead ends: 1030 [2024-11-27 23:18:52,497 INFO L226 Difference]: Without dead ends: 1028 [2024-11-27 23:18:52,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=117, Invalid=531, Unknown=2, NotChecked=0, Total=650 [2024-11-27 23:18:52,498 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 452 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:52,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 312 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:18:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-27 23:18:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-27 23:18:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.656177156177156) internal successors, (1421), 916 states have internal predecessors, (1421), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:18:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1579 transitions. [2024-11-27 23:18:52,565 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1579 transitions. Word has length 129 [2024-11-27 23:18:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:52,566 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1579 transitions. [2024-11-27 23:18:52,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1579 transitions. [2024-11-27 23:18:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 23:18:52,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:52,567 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:52,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-27 23:18:52,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:52,772 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:52,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:52,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2029028756, now seen corresponding path program 1 times [2024-11-27 23:18:52,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:52,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320922292] [2024-11-27 23:18:52,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:52,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:52,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951959491] [2024-11-27 23:18:52,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:52,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:52,797 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:52,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 23:18:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:52,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:18:52,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-27 23:18:53,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:54,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:54,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320922292] [2024-11-27 23:18:54,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:54,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951959491] [2024-11-27 23:18:54,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951959491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:54,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:54,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:18:54,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044642484] [2024-11-27 23:18:54,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:54,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:18:54,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:54,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:18:54,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:18:54,243 INFO L87 Difference]: Start difference. First operand 998 states and 1579 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:55,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:55,520 INFO L93 Difference]: Finished difference Result 1030 states and 1609 transitions. [2024-11-27 23:18:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:18:55,520 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2024-11-27 23:18:55,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:55,528 INFO L225 Difference]: With dead ends: 1030 [2024-11-27 23:18:55,530 INFO L226 Difference]: Without dead ends: 1028 [2024-11-27 23:18:55,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:18:55,531 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 589 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:55,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 303 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:18:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-27 23:18:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-27 23:18:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6515151515151516) internal successors, (1417), 916 states have internal predecessors, (1417), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:18:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1575 transitions. [2024-11-27 23:18:55,595 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1575 transitions. Word has length 130 [2024-11-27 23:18:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:55,596 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1575 transitions. [2024-11-27 23:18:55,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1575 transitions. [2024-11-27 23:18:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 23:18:55,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:55,596 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:55,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-27 23:18:55,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:55,797 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:55,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1524618105, now seen corresponding path program 1 times [2024-11-27 23:18:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:55,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931155136] [2024-11-27 23:18:55,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:55,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296461799] [2024-11-27 23:18:55,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:55,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:55,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:55,820 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:55,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-27 23:18:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:55,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:18:55,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-27 23:18:57,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:57,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:57,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931155136] [2024-11-27 23:18:57,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:18:57,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296461799] [2024-11-27 23:18:57,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296461799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:57,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:57,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:18:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156024686] [2024-11-27 23:18:57,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:18:57,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:18:57,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:57,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:18:57,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:18:57,091 INFO L87 Difference]: Start difference. First operand 998 states and 1575 transitions. Second operand has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:58,531 INFO L93 Difference]: Finished difference Result 1029 states and 1605 transitions. [2024-11-27 23:18:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:18:58,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 131 [2024-11-27 23:18:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:58,535 INFO L225 Difference]: With dead ends: 1029 [2024-11-27 23:18:58,535 INFO L226 Difference]: Without dead ends: 1028 [2024-11-27 23:18:58,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:18:58,536 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 571 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:58,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 217 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:18:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-27 23:18:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-27 23:18:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6491841491841492) internal successors, (1415), 916 states have internal predecessors, (1415), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:18:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1573 transitions. [2024-11-27 23:18:58,620 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1573 transitions. Word has length 131 [2024-11-27 23:18:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:58,621 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1573 transitions. [2024-11-27 23:18:58,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 23:18:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1573 transitions. [2024-11-27 23:18:58,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:18:58,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:58,622 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:58,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-27 23:18:58,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:58,823 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:18:58,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 18521102, now seen corresponding path program 1 times [2024-11-27 23:18:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:58,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286850665] [2024-11-27 23:18:58,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:18:58,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106619801] [2024-11-27 23:18:58,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:58,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:58,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:58,850 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:58,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-27 23:18:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:58,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:18:58,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-27 23:19:00,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:00,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286850665] [2024-11-27 23:19:00,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106619801] [2024-11-27 23:19:00,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106619801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:00,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:00,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 23:19:00,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202686032] [2024-11-27 23:19:00,728 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:00,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:19:00,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:00,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:19:00,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:19:00,729 INFO L87 Difference]: Start difference. First operand 998 states and 1573 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-27 23:19:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:02,071 INFO L93 Difference]: Finished difference Result 1017 states and 1589 transitions. [2024-11-27 23:19:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:19:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2024-11-27 23:19:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:02,076 INFO L225 Difference]: With dead ends: 1017 [2024-11-27 23:19:02,076 INFO L226 Difference]: Without dead ends: 1014 [2024-11-27 23:19:02,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:19:02,077 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 234 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:02,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 391 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:19:02,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-27 23:19:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-27 23:19:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6421911421911422) internal successors, (1409), 916 states have internal predecessors, (1409), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1567 transitions. [2024-11-27 23:19:02,149 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1567 transitions. Word has length 132 [2024-11-27 23:19:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:02,150 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1567 transitions. [2024-11-27 23:19:02,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-27 23:19:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1567 transitions. [2024-11-27 23:19:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:19:02,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:02,151 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:02,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:02,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:02,352 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:02,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:02,352 INFO L85 PathProgramCache]: Analyzing trace with hash 705069349, now seen corresponding path program 1 times [2024-11-27 23:19:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:02,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871835978] [2024-11-27 23:19:02,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:02,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132230414] [2024-11-27 23:19:02,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:02,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:02,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:02,370 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:02,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-27 23:19:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:02,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:19:02,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-27 23:19:03,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:08,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:08,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871835978] [2024-11-27 23:19:08,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:08,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132230414] [2024-11-27 23:19:08,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132230414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:08,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:08,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:19:08,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368226617] [2024-11-27 23:19:08,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:08,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:19:08,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:08,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:19:08,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=1, NotChecked=0, Total=272 [2024-11-27 23:19:08,159 INFO L87 Difference]: Start difference. First operand 998 states and 1567 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:10,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:10,292 INFO L93 Difference]: Finished difference Result 1015 states and 1583 transitions. [2024-11-27 23:19:10,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:19:10,292 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2024-11-27 23:19:10,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:10,295 INFO L225 Difference]: With dead ends: 1015 [2024-11-27 23:19:10,295 INFO L226 Difference]: Without dead ends: 1014 [2024-11-27 23:19:10,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=104, Invalid=401, Unknown=1, NotChecked=0, Total=506 [2024-11-27 23:19:10,296 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 391 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:10,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 643 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:19:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-27 23:19:10,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-27 23:19:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6398601398601398) internal successors, (1407), 916 states have internal predecessors, (1407), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1565 transitions. [2024-11-27 23:19:10,345 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1565 transitions. Word has length 138 [2024-11-27 23:19:10,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:10,345 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1565 transitions. [2024-11-27 23:19:10,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1565 transitions. [2024-11-27 23:19:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 23:19:10,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:10,346 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:10,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:10,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:10,546 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:10,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash 382313447, now seen corresponding path program 1 times [2024-11-27 23:19:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:10,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635235775] [2024-11-27 23:19:10,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:10,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:10,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036948768] [2024-11-27 23:19:10,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:10,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:10,572 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:10,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-27 23:19:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:10,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 23:19:10,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 46 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-27 23:19:12,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:12,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:12,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635235775] [2024-11-27 23:19:12,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:12,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036948768] [2024-11-27 23:19:12,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036948768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:12,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:12,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:19:12,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970180820] [2024-11-27 23:19:12,709 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:12,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:19:12,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:12,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:19:12,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:19:12,710 INFO L87 Difference]: Start difference. First operand 998 states and 1565 transitions. Second operand has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-27 23:19:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:14,734 INFO L93 Difference]: Finished difference Result 1017 states and 1583 transitions. [2024-11-27 23:19:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:19:14,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 139 [2024-11-27 23:19:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:14,737 INFO L225 Difference]: With dead ends: 1017 [2024-11-27 23:19:14,737 INFO L226 Difference]: Without dead ends: 1016 [2024-11-27 23:19:14,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:19:14,738 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 451 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:14,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 461 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:19:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-27 23:19:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2024-11-27 23:19:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6375291375291374) internal successors, (1405), 916 states have internal predecessors, (1405), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1563 transitions. [2024-11-27 23:19:14,806 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1563 transitions. Word has length 139 [2024-11-27 23:19:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:14,807 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1563 transitions. [2024-11-27 23:19:14,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-27 23:19:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1563 transitions. [2024-11-27 23:19:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-27 23:19:14,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:14,808 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:14,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:15,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:15,009 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:15,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash -753260119, now seen corresponding path program 1 times [2024-11-27 23:19:15,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:15,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696273508] [2024-11-27 23:19:15,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:15,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:15,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53388422] [2024-11-27 23:19:15,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:15,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:15,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:15,037 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:15,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-27 23:19:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:15,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 23:19:15,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-27 23:19:17,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:17,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:17,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696273508] [2024-11-27 23:19:17,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53388422] [2024-11-27 23:19:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53388422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:17,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:17,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:19:17,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978235072] [2024-11-27 23:19:17,111 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:17,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:19:17,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:17,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:19:17,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:19:17,112 INFO L87 Difference]: Start difference. First operand 998 states and 1563 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:23,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:19:28,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:19:28,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:28,923 INFO L93 Difference]: Finished difference Result 1015 states and 1579 transitions. [2024-11-27 23:19:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:19:28,923 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 142 [2024-11-27 23:19:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:28,926 INFO L225 Difference]: With dead ends: 1015 [2024-11-27 23:19:28,926 INFO L226 Difference]: Without dead ends: 1014 [2024-11-27 23:19:28,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:19:28,926 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 509 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:28,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 466 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1598 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2024-11-27 23:19:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-27 23:19:28,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-27 23:19:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6351981351981353) internal successors, (1403), 916 states have internal predecessors, (1403), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1561 transitions. [2024-11-27 23:19:29,002 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1561 transitions. Word has length 142 [2024-11-27 23:19:29,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:29,002 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1561 transitions. [2024-11-27 23:19:29,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1561 transitions. [2024-11-27 23:19:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:19:29,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:29,003 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:29,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:29,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-27 23:19:29,207 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:29,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:29,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1876227093, now seen corresponding path program 1 times [2024-11-27 23:19:29,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:29,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009157254] [2024-11-27 23:19:29,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:29,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:29,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420033956] [2024-11-27 23:19:29,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:29,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:29,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:29,228 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:29,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-27 23:19:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:29,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 23:19:29,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:29,989 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-27 23:19:29,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:30,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:30,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009157254] [2024-11-27 23:19:30,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:30,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420033956] [2024-11-27 23:19:30,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420033956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:30,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:30,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:19:30,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764685978] [2024-11-27 23:19:30,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:30,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:19:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:30,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:19:30,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:19:30,097 INFO L87 Difference]: Start difference. First operand 998 states and 1561 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:30,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:30,923 INFO L93 Difference]: Finished difference Result 1017 states and 1577 transitions. [2024-11-27 23:19:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:19:30,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 143 [2024-11-27 23:19:30,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:30,927 INFO L225 Difference]: With dead ends: 1017 [2024-11-27 23:19:30,928 INFO L226 Difference]: Without dead ends: 1016 [2024-11-27 23:19:30,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:19:30,929 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 84 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:30,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 723 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:19:30,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-27 23:19:31,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2024-11-27 23:19:31,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.632867132867133) internal successors, (1401), 916 states have internal predecessors, (1401), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:31,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1559 transitions. [2024-11-27 23:19:31,008 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1559 transitions. Word has length 143 [2024-11-27 23:19:31,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:31,008 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1559 transitions. [2024-11-27 23:19:31,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:31,008 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1559 transitions. [2024-11-27 23:19:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-27 23:19:31,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:31,009 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:31,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-27 23:19:31,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-27 23:19:31,214 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:31,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:31,214 INFO L85 PathProgramCache]: Analyzing trace with hash 23179821, now seen corresponding path program 1 times [2024-11-27 23:19:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:31,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261209162] [2024-11-27 23:19:31,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:31,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:31,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238359664] [2024-11-27 23:19:31,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:31,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:31,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:31,234 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:31,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-27 23:19:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:31,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:19:31,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-27 23:19:33,600 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:33,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:33,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261209162] [2024-11-27 23:19:33,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:33,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238359664] [2024-11-27 23:19:33,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238359664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:33,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:33,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:19:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313835798] [2024-11-27 23:19:33,683 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:33,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:19:33,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:33,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:19:33,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:19:33,684 INFO L87 Difference]: Start difference. First operand 998 states and 1559 transitions. Second operand has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-27 23:19:36,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:36,194 INFO L93 Difference]: Finished difference Result 1018 states and 1575 transitions. [2024-11-27 23:19:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:19:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 146 [2024-11-27 23:19:36,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:36,197 INFO L225 Difference]: With dead ends: 1018 [2024-11-27 23:19:36,197 INFO L226 Difference]: Without dead ends: 1014 [2024-11-27 23:19:36,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:19:36,198 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 409 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:36,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 387 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:19:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-27 23:19:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-27 23:19:36,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6235431235431235) internal successors, (1393), 916 states have internal predecessors, (1393), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:36,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1551 transitions. [2024-11-27 23:19:36,264 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1551 transitions. Word has length 146 [2024-11-27 23:19:36,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:36,265 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1551 transitions. [2024-11-27 23:19:36,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-27 23:19:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1551 transitions. [2024-11-27 23:19:36,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:19:36,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:36,266 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:36,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:36,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-27 23:19:36,467 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:36,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:36,467 INFO L85 PathProgramCache]: Analyzing trace with hash 718574575, now seen corresponding path program 1 times [2024-11-27 23:19:36,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:36,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934256545] [2024-11-27 23:19:36,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:36,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47848483] [2024-11-27 23:19:36,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:36,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:36,493 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:36,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-27 23:19:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:36,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:19:36,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 24 proven. 48 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-27 23:19:38,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:38,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:38,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934256545] [2024-11-27 23:19:38,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:38,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47848483] [2024-11-27 23:19:38,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47848483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:38,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:38,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:19:38,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623328943] [2024-11-27 23:19:38,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:38,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:19:38,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:38,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:19:38,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:19:38,700 INFO L87 Difference]: Start difference. First operand 998 states and 1551 transitions. Second operand has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-27 23:19:41,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:19:44,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:44,417 INFO L93 Difference]: Finished difference Result 1016 states and 1567 transitions. [2024-11-27 23:19:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:19:44,418 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 147 [2024-11-27 23:19:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:44,421 INFO L225 Difference]: With dead ends: 1016 [2024-11-27 23:19:44,421 INFO L226 Difference]: Without dead ends: 1014 [2024-11-27 23:19:44,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:19:44,421 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 388 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:44,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 385 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-27 23:19:44,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-27 23:19:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-27 23:19:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.618881118881119) internal successors, (1389), 916 states have internal predecessors, (1389), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1547 transitions. [2024-11-27 23:19:44,491 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1547 transitions. Word has length 147 [2024-11-27 23:19:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:44,491 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1547 transitions. [2024-11-27 23:19:44,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-27 23:19:44,493 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1547 transitions. [2024-11-27 23:19:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:19:44,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:44,494 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:44,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-27 23:19:44,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-27 23:19:44,697 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:44,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:44,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1203766263, now seen corresponding path program 1 times [2024-11-27 23:19:44,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:44,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224111647] [2024-11-27 23:19:44,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:44,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446949480] [2024-11-27 23:19:44,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:44,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:44,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:44,718 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:44,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-27 23:19:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:44,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:19:44,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-27 23:19:45,689 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224111647] [2024-11-27 23:19:50,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446949480] [2024-11-27 23:19:50,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446949480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:50,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:50,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:19:50,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130521182] [2024-11-27 23:19:50,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:50,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:19:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:50,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:19:50,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=195, Unknown=1, NotChecked=0, Total=240 [2024-11-27 23:19:50,157 INFO L87 Difference]: Start difference. First operand 998 states and 1547 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:52,125 INFO L93 Difference]: Finished difference Result 1007 states and 1551 transitions. [2024-11-27 23:19:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:19:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 155 [2024-11-27 23:19:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:52,127 INFO L225 Difference]: With dead ends: 1007 [2024-11-27 23:19:52,127 INFO L226 Difference]: Without dead ends: 1005 [2024-11-27 23:19:52,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=70, Invalid=309, Unknown=1, NotChecked=0, Total=380 [2024-11-27 23:19:52,128 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 282 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:52,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 510 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:19:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-27 23:19:52,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 998. [2024-11-27 23:19:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6142191142191142) internal successors, (1385), 916 states have internal predecessors, (1385), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:19:52,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1543 transitions. [2024-11-27 23:19:52,202 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1543 transitions. Word has length 155 [2024-11-27 23:19:52,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:52,203 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1543 transitions. [2024-11-27 23:19:52,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 23:19:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1543 transitions. [2024-11-27 23:19:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-27 23:19:52,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:52,204 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:52,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:52,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-27 23:19:52,404 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:52,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1598756135, now seen corresponding path program 1 times [2024-11-27 23:19:52,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:52,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86795912] [2024-11-27 23:19:52,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:52,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:19:52,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:52,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86795912] [2024-11-27 23:19:52,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86795912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:52,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129779971] [2024-11-27 23:19:52,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:52,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:52,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:52,587 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:52,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-27 23:19:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:52,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:19:52,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:19:53,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:19:53,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129779971] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:19:53,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:19:53,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-27 23:19:53,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294979611] [2024-11-27 23:19:53,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:53,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:19:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:53,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:19:53,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:19:53,381 INFO L87 Difference]: Start difference. First operand 998 states and 1543 transitions. Second operand has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-27 23:19:54,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:54,873 INFO L93 Difference]: Finished difference Result 1090 states and 1647 transitions. [2024-11-27 23:19:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:19:54,874 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) Word has length 159 [2024-11-27 23:19:54,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:54,877 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 23:19:54,877 INFO L226 Difference]: Without dead ends: 1089 [2024-11-27 23:19:54,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:19:54,878 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 533 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:54,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 635 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:19:54,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-27 23:19:54,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-27 23:19:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5660980810234542) internal successors, (1469), 996 states have internal predecessors, (1469), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:19:54,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1643 transitions. [2024-11-27 23:19:54,964 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1643 transitions. Word has length 159 [2024-11-27 23:19:54,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:54,964 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1643 transitions. [2024-11-27 23:19:54,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-27 23:19:54,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1643 transitions. [2024-11-27 23:19:54,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-27 23:19:54,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:54,966 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:54,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:55,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-27 23:19:55,168 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:55,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1812130327, now seen corresponding path program 1 times [2024-11-27 23:19:55,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:55,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142055666] [2024-11-27 23:19:55,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:55,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:55,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329930905] [2024-11-27 23:19:55,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:55,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:55,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:55,204 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:55,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-27 23:19:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:55,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:19:55,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:19:55,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:19:55,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142055666] [2024-11-27 23:19:55,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329930905] [2024-11-27 23:19:55,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329930905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:55,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:55,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:19:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687806865] [2024-11-27 23:19:55,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:55,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:19:55,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:55,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:19:55,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:55,724 INFO L87 Difference]: Start difference. First operand 1086 states and 1643 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:19:56,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:56,177 INFO L93 Difference]: Finished difference Result 1090 states and 1643 transitions. [2024-11-27 23:19:56,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:19:56,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 163 [2024-11-27 23:19:56,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:56,180 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 23:19:56,181 INFO L226 Difference]: Without dead ends: 1089 [2024-11-27 23:19:56,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:56,181 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 30 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:56,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 277 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:19:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-27 23:19:56,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-27 23:19:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5650319829424306) internal successors, (1468), 996 states have internal predecessors, (1468), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:19:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1642 transitions. [2024-11-27 23:19:56,244 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1642 transitions. Word has length 163 [2024-11-27 23:19:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:56,245 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1642 transitions. [2024-11-27 23:19:56,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:19:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1642 transitions. [2024-11-27 23:19:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-27 23:19:56,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:56,246 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:56,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-27 23:19:56,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-27 23:19:56,447 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:56,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash -332960373, now seen corresponding path program 2 times [2024-11-27 23:19:56,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:56,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761136286] [2024-11-27 23:19:56,447 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:19:56,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:56,467 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:19:56,467 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:19:56,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772022986] [2024-11-27 23:19:56,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:19:56,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:56,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:56,472 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:56,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-27 23:19:56,618 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:19:56,618 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:19:56,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:19:56,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 15 proven. 70 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-27 23:19:57,697 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:57,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:57,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761136286] [2024-11-27 23:19:57,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:19:57,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772022986] [2024-11-27 23:19:57,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772022986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:57,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:57,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:19:57,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924149537] [2024-11-27 23:19:57,913 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:57,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:19:57,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:57,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:19:57,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:19:57,914 INFO L87 Difference]: Start difference. First operand 1086 states and 1642 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:19:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:59,023 INFO L93 Difference]: Finished difference Result 1091 states and 1644 transitions. [2024-11-27 23:19:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:19:59,023 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 163 [2024-11-27 23:19:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:59,025 INFO L225 Difference]: With dead ends: 1091 [2024-11-27 23:19:59,025 INFO L226 Difference]: Without dead ends: 1089 [2024-11-27 23:19:59,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:19:59,026 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 359 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:59,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 584 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:19:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-27 23:19:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-27 23:19:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5628997867803838) internal successors, (1466), 996 states have internal predecessors, (1466), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:19:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1640 transitions. [2024-11-27 23:19:59,132 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1640 transitions. Word has length 163 [2024-11-27 23:19:59,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:59,132 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1640 transitions. [2024-11-27 23:19:59,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:19:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1640 transitions. [2024-11-27 23:19:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:19:59,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:59,134 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:59,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-27 23:19:59,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:59,334 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:19:59,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:59,335 INFO L85 PathProgramCache]: Analyzing trace with hash -341465115, now seen corresponding path program 1 times [2024-11-27 23:19:59,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:59,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202319189] [2024-11-27 23:19:59,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:59,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:19:59,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242361709] [2024-11-27 23:19:59,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:59,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:59,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:59,370 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:59,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-27 23:19:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:59,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:19:59,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:19:59,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:00,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202319189] [2024-11-27 23:20:00,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:00,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242361709] [2024-11-27 23:20:00,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242361709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:00,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:00,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:20:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096112311] [2024-11-27 23:20:00,261 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:00,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:20:00,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:00,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:20:00,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:20:00,262 INFO L87 Difference]: Start difference. First operand 1086 states and 1640 transitions. Second operand has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:20:00,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:00,733 INFO L93 Difference]: Finished difference Result 1099 states and 1651 transitions. [2024-11-27 23:20:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:20:00,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 164 [2024-11-27 23:20:00,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:00,738 INFO L225 Difference]: With dead ends: 1099 [2024-11-27 23:20:00,738 INFO L226 Difference]: Without dead ends: 1098 [2024-11-27 23:20:00,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:20:00,739 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 75 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:00,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 346 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:20:00,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-27 23:20:00,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1093. [2024-11-27 23:20:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 945 states have (on average 1.5587301587301587) internal successors, (1473), 1003 states have internal predecessors, (1473), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:20:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1647 transitions. [2024-11-27 23:20:00,826 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1647 transitions. Word has length 164 [2024-11-27 23:20:00,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:00,827 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1647 transitions. [2024-11-27 23:20:00,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:20:00,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1647 transitions. [2024-11-27 23:20:00,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 23:20:00,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:00,828 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:00,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-27 23:20:01,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:01,029 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:01,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:01,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1366164346, now seen corresponding path program 1 times [2024-11-27 23:20:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:01,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044249345] [2024-11-27 23:20:01,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:01,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:01,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044249345] [2024-11-27 23:20:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044249345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742232518] [2024-11-27 23:20:01,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:01,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:01,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:01,307 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:01,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-27 23:20:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:01,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:20:01,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:01,876 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:02,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742232518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:20:02,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:20:02,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-27 23:20:02,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256838499] [2024-11-27 23:20:02,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:02,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:20:02,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:02,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:20:02,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:20:02,181 INFO L87 Difference]: Start difference. First operand 1093 states and 1647 transitions. Second operand has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-27 23:20:06,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:06,228 INFO L93 Difference]: Finished difference Result 1744 states and 2319 transitions. [2024-11-27 23:20:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-27 23:20:06,229 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) Word has length 165 [2024-11-27 23:20:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:06,233 INFO L225 Difference]: With dead ends: 1744 [2024-11-27 23:20:06,233 INFO L226 Difference]: Without dead ends: 1743 [2024-11-27 23:20:06,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1211, Invalid=3901, Unknown=0, NotChecked=0, Total=5112 [2024-11-27 23:20:06,235 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 3115 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:06,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 784 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 23:20:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-27 23:20:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1324. [2024-11-27 23:20:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1156 states have (on average 1.5813148788927336) internal successors, (1828), 1214 states have internal predecessors, (1828), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-27 23:20:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2042 transitions. [2024-11-27 23:20:06,382 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2042 transitions. Word has length 165 [2024-11-27 23:20:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:06,382 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2042 transitions. [2024-11-27 23:20:06,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-27 23:20:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2042 transitions. [2024-11-27 23:20:06,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 23:20:06,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:06,383 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:06,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-11-27 23:20:06,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:06,584 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:06,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:06,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1730455385, now seen corresponding path program 1 times [2024-11-27 23:20:06,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:06,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22836343] [2024-11-27 23:20:06,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:06,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:06,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1622829264] [2024-11-27 23:20:06,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:06,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:06,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:06,610 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:06,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-27 23:20:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:06,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:20:06,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:07,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:20:07,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:07,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22836343] [2024-11-27 23:20:07,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:07,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622829264] [2024-11-27 23:20:07,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622829264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:07,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:07,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:20:07,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047401892] [2024-11-27 23:20:07,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:07,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:07,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:07,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:07,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:07,202 INFO L87 Difference]: Start difference. First operand 1324 states and 2042 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:20:07,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:07,629 INFO L93 Difference]: Finished difference Result 1328 states and 2042 transitions. [2024-11-27 23:20:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:07,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 166 [2024-11-27 23:20:07,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:07,632 INFO L225 Difference]: With dead ends: 1328 [2024-11-27 23:20:07,632 INFO L226 Difference]: Without dead ends: 1327 [2024-11-27 23:20:07,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:07,633 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 19 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:07,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 349 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:20:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-27 23:20:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1324. [2024-11-27 23:20:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1156 states have (on average 1.5804498269896194) internal successors, (1827), 1214 states have internal predecessors, (1827), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-27 23:20:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2041 transitions. [2024-11-27 23:20:07,718 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2041 transitions. Word has length 166 [2024-11-27 23:20:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:07,718 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2041 transitions. [2024-11-27 23:20:07,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:20:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2041 transitions. [2024-11-27 23:20:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-27 23:20:07,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:07,719 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:07,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-27 23:20:07,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:07,919 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:07,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:07,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1377590278, now seen corresponding path program 1 times [2024-11-27 23:20:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:07,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253539987] [2024-11-27 23:20:07,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:07,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:08,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:08,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253539987] [2024-11-27 23:20:08,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253539987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:08,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988542855] [2024-11-27 23:20:08,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:08,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:08,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:08,115 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:08,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-27 23:20:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:08,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:20:08,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:08,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:20:08,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988542855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:08,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:08,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-27 23:20:08,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482257866] [2024-11-27 23:20:08,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:08,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:20:08,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:08,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:20:08,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:20:08,335 INFO L87 Difference]: Start difference. First operand 1324 states and 2041 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:20:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:08,641 INFO L93 Difference]: Finished difference Result 1677 states and 2544 transitions. [2024-11-27 23:20:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-27 23:20:08,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:08,644 INFO L225 Difference]: With dead ends: 1677 [2024-11-27 23:20:08,644 INFO L226 Difference]: Without dead ends: 851 [2024-11-27 23:20:08,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:20:08,646 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 166 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:08,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 576 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:20:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-27 23:20:08,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 826. [2024-11-27 23:20:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 699 states have (on average 1.4177396280400572) internal successors, (991), 756 states have internal predecessors, (991), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-27 23:20:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1125 transitions. [2024-11-27 23:20:08,764 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1125 transitions. Word has length 167 [2024-11-27 23:20:08,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:08,765 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1125 transitions. [2024-11-27 23:20:08,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:20:08,765 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1125 transitions. [2024-11-27 23:20:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-27 23:20:08,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:08,766 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:08,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-27 23:20:08,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:08,971 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:08,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash 292089675, now seen corresponding path program 1 times [2024-11-27 23:20:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:08,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362132451] [2024-11-27 23:20:08,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:08,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:08,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599025484] [2024-11-27 23:20:08,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:08,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:08,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:08,995 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:09,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-27 23:20:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:09,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:20:09,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 52 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-27 23:20:09,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:09,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:09,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362132451] [2024-11-27 23:20:09,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:09,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599025484] [2024-11-27 23:20:09,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599025484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:09,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:09,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:20:09,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719460701] [2024-11-27 23:20:09,500 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:09,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:20:09,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:09,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:20:09,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:20:09,500 INFO L87 Difference]: Start difference. First operand 826 states and 1125 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-27 23:20:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:10,478 INFO L93 Difference]: Finished difference Result 930 states and 1150 transitions. [2024-11-27 23:20:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:20:10,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 168 [2024-11-27 23:20:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:10,481 INFO L225 Difference]: With dead ends: 930 [2024-11-27 23:20:10,481 INFO L226 Difference]: Without dead ends: 928 [2024-11-27 23:20:10,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:20:10,482 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 495 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:10,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 955 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:20:10,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-27 23:20:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 826. [2024-11-27 23:20:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 699 states have (on average 1.413447782546495) internal successors, (988), 756 states have internal predecessors, (988), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-27 23:20:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1122 transitions. [2024-11-27 23:20:10,591 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1122 transitions. Word has length 168 [2024-11-27 23:20:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:10,591 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1122 transitions. [2024-11-27 23:20:10,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-27 23:20:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1122 transitions. [2024-11-27 23:20:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-27 23:20:10,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:10,593 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:10,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-27 23:20:10,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:10,794 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:10,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash -815279421, now seen corresponding path program 1 times [2024-11-27 23:20:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104518378] [2024-11-27 23:20:10,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:10,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250366838] [2024-11-27 23:20:10,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:10,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:10,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:10,825 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:10,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-27 23:20:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:10,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:20:10,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:12,244 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 23:20:12,244 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:16,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104518378] [2024-11-27 23:20:16,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250366838] [2024-11-27 23:20:16,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250366838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:16,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:16,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:20:16,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905919497] [2024-11-27 23:20:16,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:16,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:20:16,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:16,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:20:16,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=275, Unknown=1, NotChecked=0, Total=342 [2024-11-27 23:20:16,475 INFO L87 Difference]: Start difference. First operand 826 states and 1122 transitions. Second operand has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:18,482 INFO L93 Difference]: Finished difference Result 941 states and 1293 transitions. [2024-11-27 23:20:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:20:18,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 168 [2024-11-27 23:20:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:18,485 INFO L225 Difference]: With dead ends: 941 [2024-11-27 23:20:18,485 INFO L226 Difference]: Without dead ends: 937 [2024-11-27 23:20:18,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=146, Invalid=555, Unknown=1, NotChecked=0, Total=702 [2024-11-27 23:20:18,486 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 579 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:18,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 658 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:20:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-27 23:20:18,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 920. [2024-11-27 23:20:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 785 states have (on average 1.435668789808917) internal successors, (1127), 842 states have internal predecessors, (1127), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:20:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1277 transitions. [2024-11-27 23:20:18,615 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1277 transitions. Word has length 168 [2024-11-27 23:20:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:18,616 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1277 transitions. [2024-11-27 23:20:18,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:18,616 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1277 transitions. [2024-11-27 23:20:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-27 23:20:18,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:18,617 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:18,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-11-27 23:20:18,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:18,818 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:18,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash 464845406, now seen corresponding path program 1 times [2024-11-27 23:20:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:18,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247088584] [2024-11-27 23:20:18,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:18,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117695785] [2024-11-27 23:20:18,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:18,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:18,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:18,843 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:18,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-27 23:20:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:18,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:20:18,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 6 proven. 64 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 23:20:19,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:19,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247088584] [2024-11-27 23:20:19,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117695785] [2024-11-27 23:20:19,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117695785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:19,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:19,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:20:19,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896637447] [2024-11-27 23:20:19,589 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:19,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:20:19,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:19,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:20:19,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:20:19,590 INFO L87 Difference]: Start difference. First operand 920 states and 1277 transitions. Second operand has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:21,013 INFO L93 Difference]: Finished difference Result 927 states and 1281 transitions. [2024-11-27 23:20:21,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:20:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 169 [2024-11-27 23:20:21,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:21,016 INFO L225 Difference]: With dead ends: 927 [2024-11-27 23:20:21,016 INFO L226 Difference]: Without dead ends: 925 [2024-11-27 23:20:21,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:20:21,017 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 436 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:21,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 573 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:20:21,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-27 23:20:21,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 922. [2024-11-27 23:20:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 787 states have (on average 1.4332909783989836) internal successors, (1128), 844 states have internal predecessors, (1128), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:20:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1278 transitions. [2024-11-27 23:20:21,133 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1278 transitions. Word has length 169 [2024-11-27 23:20:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:21,134 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1278 transitions. [2024-11-27 23:20:21,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:21,134 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1278 transitions. [2024-11-27 23:20:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-27 23:20:21,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:21,135 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:21,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-27 23:20:21,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:21,336 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:21,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:21,336 INFO L85 PathProgramCache]: Analyzing trace with hash 496141910, now seen corresponding path program 1 times [2024-11-27 23:20:21,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:21,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853884680] [2024-11-27 23:20:21,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:21,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:21,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566570109] [2024-11-27 23:20:21,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:21,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:21,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:21,355 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:21,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-27 23:20:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:21,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:20:21,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 23:20:22,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:27,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853884680] [2024-11-27 23:20:27,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566570109] [2024-11-27 23:20:27,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566570109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:27,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:27,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:20:27,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827880329] [2024-11-27 23:20:27,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:27,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:20:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:27,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:20:27,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=276, Unknown=1, NotChecked=0, Total=342 [2024-11-27 23:20:27,371 INFO L87 Difference]: Start difference. First operand 922 states and 1278 transitions. Second operand has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:29,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:29,282 INFO L93 Difference]: Finished difference Result 945 states and 1288 transitions. [2024-11-27 23:20:29,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:20:29,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 169 [2024-11-27 23:20:29,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:29,286 INFO L225 Difference]: With dead ends: 945 [2024-11-27 23:20:29,286 INFO L226 Difference]: Without dead ends: 942 [2024-11-27 23:20:29,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=188, Invalid=681, Unknown=1, NotChecked=0, Total=870 [2024-11-27 23:20:29,287 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 992 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:29,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 498 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:20:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-27 23:20:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 923. [2024-11-27 23:20:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 788 states have (on average 1.4276649746192893) internal successors, (1125), 845 states have internal predecessors, (1125), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:20:29,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1275 transitions. [2024-11-27 23:20:29,422 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1275 transitions. Word has length 169 [2024-11-27 23:20:29,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:29,423 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1275 transitions. [2024-11-27 23:20:29,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:29,423 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1275 transitions. [2024-11-27 23:20:29,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-27 23:20:29,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:29,424 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:29,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-27 23:20:29,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:29,625 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:29,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:29,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1799469787, now seen corresponding path program 1 times [2024-11-27 23:20:29,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:29,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641411180] [2024-11-27 23:20:29,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:29,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:29,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945349802] [2024-11-27 23:20:29,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:29,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:29,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:29,653 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:29,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-27 23:20:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:29,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:20:29,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 23:20:31,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:36,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:36,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641411180] [2024-11-27 23:20:36,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:36,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945349802] [2024-11-27 23:20:36,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945349802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:36,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:36,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:20:36,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701478264] [2024-11-27 23:20:36,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:36,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:20:36,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:36,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:20:36,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=233, Unknown=2, NotChecked=0, Total=306 [2024-11-27 23:20:36,130 INFO L87 Difference]: Start difference. First operand 923 states and 1275 transitions. Second operand has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:38,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:38,034 INFO L93 Difference]: Finished difference Result 952 states and 1299 transitions. [2024-11-27 23:20:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:20:38,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 170 [2024-11-27 23:20:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:38,038 INFO L225 Difference]: With dead ends: 952 [2024-11-27 23:20:38,038 INFO L226 Difference]: Without dead ends: 949 [2024-11-27 23:20:38,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=167, Invalid=533, Unknown=2, NotChecked=0, Total=702 [2024-11-27 23:20:38,039 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 306 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:38,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 519 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:20:38,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-27 23:20:38,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 924. [2024-11-27 23:20:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 789 states have (on average 1.4220532319391634) internal successors, (1122), 846 states have internal predecessors, (1122), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:20:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1272 transitions. [2024-11-27 23:20:38,168 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1272 transitions. Word has length 170 [2024-11-27 23:20:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:38,169 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1272 transitions. [2024-11-27 23:20:38,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1272 transitions. [2024-11-27 23:20:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-27 23:20:38,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:38,170 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:38,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-27 23:20:38,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-27 23:20:38,371 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:38,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:38,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1799521421, now seen corresponding path program 1 times [2024-11-27 23:20:38,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:38,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714148425] [2024-11-27 23:20:38,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:38,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:38,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714148425] [2024-11-27 23:20:38,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714148425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:38,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937298620] [2024-11-27 23:20:38,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:38,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:38,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:38,546 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:38,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-27 23:20:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:38,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:20:38,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:38,779 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:38,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:20:38,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937298620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:38,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:38,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-11-27 23:20:38,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780949522] [2024-11-27 23:20:38,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:38,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:20:38,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:38,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:20:38,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:20:38,782 INFO L87 Difference]: Start difference. First operand 924 states and 1272 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:20:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:39,370 INFO L93 Difference]: Finished difference Result 957 states and 1272 transitions. [2024-11-27 23:20:39,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:20:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 170 [2024-11-27 23:20:39,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:39,373 INFO L225 Difference]: With dead ends: 957 [2024-11-27 23:20:39,373 INFO L226 Difference]: Without dead ends: 956 [2024-11-27 23:20:39,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:20:39,374 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 294 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:39,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1143 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:20:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-27 23:20:39,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 923. [2024-11-27 23:20:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 789 states have (on average 1.4157160963244613) internal successors, (1117), 845 states have internal predecessors, (1117), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:20:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1267 transitions. [2024-11-27 23:20:39,505 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1267 transitions. Word has length 170 [2024-11-27 23:20:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:39,505 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1267 transitions. [2024-11-27 23:20:39,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:20:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1267 transitions. [2024-11-27 23:20:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-27 23:20:39,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:39,507 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:39,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-27 23:20:39,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:39,711 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:39,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash 51011640, now seen corresponding path program 1 times [2024-11-27 23:20:39,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:39,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856322834] [2024-11-27 23:20:39,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:39,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:39,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222731269] [2024-11-27 23:20:39,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:39,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:39,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:39,736 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:39,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-27 23:20:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:39,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:20:39,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 47 proven. 19 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 23:20:41,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:49,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:49,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856322834] [2024-11-27 23:20:49,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:49,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222731269] [2024-11-27 23:20:49,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222731269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:49,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:49,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:20:49,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104657760] [2024-11-27 23:20:49,911 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:49,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:20:49,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:49,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:20:49,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=234, Unknown=2, NotChecked=0, Total=306 [2024-11-27 23:20:49,912 INFO L87 Difference]: Start difference. First operand 923 states and 1267 transitions. Second operand has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:51,849 INFO L93 Difference]: Finished difference Result 953 states and 1284 transitions. [2024-11-27 23:20:51,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:20:51,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 171 [2024-11-27 23:20:51,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:51,851 INFO L225 Difference]: With dead ends: 953 [2024-11-27 23:20:51,851 INFO L226 Difference]: Without dead ends: 950 [2024-11-27 23:20:51,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=179, Invalid=575, Unknown=2, NotChecked=0, Total=756 [2024-11-27 23:20:51,852 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 240 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:51,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 574 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:20:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-27 23:20:51,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 923. [2024-11-27 23:20:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 789 states have (on average 1.4043092522179974) internal successors, (1108), 845 states have internal predecessors, (1108), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:20:51,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1258 transitions. [2024-11-27 23:20:51,923 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1258 transitions. Word has length 171 [2024-11-27 23:20:51,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:51,924 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1258 transitions. [2024-11-27 23:20:51,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 23:20:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1258 transitions. [2024-11-27 23:20:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-27 23:20:51,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:51,925 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:51,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-27 23:20:52,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:52,129 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:20:52,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1581361031, now seen corresponding path program 1 times [2024-11-27 23:20:52,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:52,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980290652] [2024-11-27 23:20:52,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:20:52,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013706084] [2024-11-27 23:20:52,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:52,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:52,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:52,152 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:52,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-27 23:20:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:52,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 23:20:52,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:53,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 23:20:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:54,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980290652] [2024-11-27 23:20:54,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:20:54,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013706084] [2024-11-27 23:20:54,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013706084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:20:54,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:20:54,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-27 23:20:54,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707555303] [2024-11-27 23:20:54,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:54,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:20:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:54,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:20:54,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:20:54,938 INFO L87 Difference]: Start difference. First operand 923 states and 1258 transitions. Second operand has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-27 23:21:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:01,466 INFO L93 Difference]: Finished difference Result 949 states and 1284 transitions. [2024-11-27 23:21:01,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-27 23:21:01,466 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 172 [2024-11-27 23:21:01,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:01,468 INFO L225 Difference]: With dead ends: 949 [2024-11-27 23:21:01,468 INFO L226 Difference]: Without dead ends: 940 [2024-11-27 23:21:01,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 23:21:01,469 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 931 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 2836 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:01,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 391 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2836 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-27 23:21:01,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-27 23:21:01,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 935. [2024-11-27 23:21:01,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 801 states have (on average 1.3982521847690388) internal successors, (1120), 857 states have internal predecessors, (1120), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:21:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1270 transitions. [2024-11-27 23:21:01,552 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1270 transitions. Word has length 172 [2024-11-27 23:21:01,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:01,552 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1270 transitions. [2024-11-27 23:21:01,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-27 23:21:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1270 transitions. [2024-11-27 23:21:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-27 23:21:01,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:01,554 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:01,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-27 23:21:01,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:01,757 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:21:01,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash -250434167, now seen corresponding path program 1 times [2024-11-27 23:21:01,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:01,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119854603] [2024-11-27 23:21:01,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:01,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:21:01,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520768166] [2024-11-27 23:21:01,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:01,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:01,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:01,784 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:01,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-27 23:21:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:01,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 23:21:01,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-27 23:21:03,759 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-27 23:21:05,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:05,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119854603] [2024-11-27 23:21:05,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:21:05,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520768166] [2024-11-27 23:21:05,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520768166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:05,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:21:05,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-27 23:21:05,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878768311] [2024-11-27 23:21:05,084 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:05,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:21:05,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:05,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:21:05,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:21:05,085 INFO L87 Difference]: Start difference. First operand 935 states and 1270 transitions. Second operand has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-27 23:21:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:10,465 INFO L93 Difference]: Finished difference Result 964 states and 1302 transitions. [2024-11-27 23:21:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-27 23:21:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 192 [2024-11-27 23:21:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:10,468 INFO L225 Difference]: With dead ends: 964 [2024-11-27 23:21:10,468 INFO L226 Difference]: Without dead ends: 963 [2024-11-27 23:21:10,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 23:21:10,468 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 569 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:10,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 364 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 23:21:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-27 23:21:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 952. [2024-11-27 23:21:10,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 816 states have (on average 1.3933823529411764) internal successors, (1137), 872 states have internal predecessors, (1137), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-27 23:21:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1291 transitions. [2024-11-27 23:21:10,570 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1291 transitions. Word has length 192 [2024-11-27 23:21:10,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:10,570 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1291 transitions. [2024-11-27 23:21:10,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-27 23:21:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1291 transitions. [2024-11-27 23:21:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-27 23:21:10,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:10,572 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:10,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-11-27 23:21:10,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:10,772 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:21:10,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:10,772 INFO L85 PathProgramCache]: Analyzing trace with hash 826475518, now seen corresponding path program 1 times [2024-11-27 23:21:10,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:10,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429891122] [2024-11-27 23:21:10,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:10,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:21:10,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472703535] [2024-11-27 23:21:10,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:10,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:10,794 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:10,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-27 23:21:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:10,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-27 23:21:10,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-27 23:21:13,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:16,638 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-27 23:21:16,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:16,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429891122] [2024-11-27 23:21:16,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:21:16,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472703535] [2024-11-27 23:21:16,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472703535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:16,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:21:16,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-27 23:21:16,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882678078] [2024-11-27 23:21:16,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:16,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 23:21:16,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:16,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 23:21:16,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:21:16,640 INFO L87 Difference]: Start difference. First operand 952 states and 1291 transitions. Second operand has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-27 23:21:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:32,206 INFO L93 Difference]: Finished difference Result 999 states and 1347 transitions. [2024-11-27 23:21:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 23:21:32,206 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) Word has length 193 [2024-11-27 23:21:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:32,208 INFO L225 Difference]: With dead ends: 999 [2024-11-27 23:21:32,208 INFO L226 Difference]: Without dead ends: 994 [2024-11-27 23:21:32,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=559, Invalid=2093, Unknown=0, NotChecked=0, Total=2652 [2024-11-27 23:21:32,209 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 702 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 3767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:32,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 494 Invalid, 3767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3681 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2024-11-27 23:21:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-27 23:21:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 983. [2024-11-27 23:21:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.383431952662722) internal successors, (1169), 901 states have internal predecessors, (1169), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:21:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1327 transitions. [2024-11-27 23:21:32,292 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1327 transitions. Word has length 193 [2024-11-27 23:21:32,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:32,292 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1327 transitions. [2024-11-27 23:21:32,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-27 23:21:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1327 transitions. [2024-11-27 23:21:32,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 23:21:32,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:32,293 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:32,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2024-11-27 23:21:32,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:32,494 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:21:32,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:32,494 INFO L85 PathProgramCache]: Analyzing trace with hash -706923243, now seen corresponding path program 1 times [2024-11-27 23:21:32,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:32,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436362483] [2024-11-27 23:21:32,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:32,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:21:32,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119564169] [2024-11-27 23:21:32,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:32,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:32,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:32,520 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:32,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-27 23:21:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:32,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:21:32,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-27 23:21:34,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:46,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:46,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436362483] [2024-11-27 23:21:46,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:21:46,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119564169] [2024-11-27 23:21:46,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119564169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:46,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:21:46,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:21:46,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375139549] [2024-11-27 23:21:46,410 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:46,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:21:46,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:46,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:21:46,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=139, Unknown=3, NotChecked=0, Total=182 [2024-11-27 23:21:46,411 INFO L87 Difference]: Start difference. First operand 983 states and 1327 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-27 23:21:48,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:48,955 INFO L93 Difference]: Finished difference Result 1003 states and 1336 transitions. [2024-11-27 23:21:48,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:21:48,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 199 [2024-11-27 23:21:48,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:48,957 INFO L225 Difference]: With dead ends: 1003 [2024-11-27 23:21:48,957 INFO L226 Difference]: Without dead ends: 1002 [2024-11-27 23:21:48,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=98, Invalid=279, Unknown=3, NotChecked=0, Total=380 [2024-11-27 23:21:48,958 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 148 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:48,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 873 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:21:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-27 23:21:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 983. [2024-11-27 23:21:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.378698224852071) internal successors, (1165), 901 states have internal predecessors, (1165), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:21:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1323 transitions. [2024-11-27 23:21:49,046 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1323 transitions. Word has length 199 [2024-11-27 23:21:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:49,046 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1323 transitions. [2024-11-27 23:21:49,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-27 23:21:49,047 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1323 transitions. [2024-11-27 23:21:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 23:21:49,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:49,048 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:49,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-27 23:21:49,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-11-27 23:21:49,249 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:21:49,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:49,249 INFO L85 PathProgramCache]: Analyzing trace with hash -439783945, now seen corresponding path program 1 times [2024-11-27 23:21:49,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:49,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504525511] [2024-11-27 23:21:49,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:49,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:21:49,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729304524] [2024-11-27 23:21:49,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:49,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:49,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:49,283 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:49,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-27 23:21:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:49,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 23:21:49,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-27 23:21:51,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504525511] [2024-11-27 23:21:56,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:21:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729304524] [2024-11-27 23:21:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729304524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:56,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:21:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:21:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644554151] [2024-11-27 23:21:56,466 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:56,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:21:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:56,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:21:56,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=246, Unknown=1, NotChecked=0, Total=306 [2024-11-27 23:21:56,467 INFO L87 Difference]: Start difference. First operand 983 states and 1323 transitions. Second operand has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 23:21:59,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:22:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:01,805 INFO L93 Difference]: Finished difference Result 1000 states and 1334 transitions. [2024-11-27 23:22:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:22:01,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 200 [2024-11-27 23:22:01,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:01,807 INFO L225 Difference]: With dead ends: 1000 [2024-11-27 23:22:01,807 INFO L226 Difference]: Without dead ends: 999 [2024-11-27 23:22:01,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=141, Invalid=560, Unknown=1, NotChecked=0, Total=702 [2024-11-27 23:22:01,807 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 551 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:01,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 654 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1931 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-27 23:22:01,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-27 23:22:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 983. [2024-11-27 23:22:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3763313609467456) internal successors, (1163), 901 states have internal predecessors, (1163), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:22:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1321 transitions. [2024-11-27 23:22:01,932 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1321 transitions. Word has length 200 [2024-11-27 23:22:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:01,932 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1321 transitions. [2024-11-27 23:22:01,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 23:22:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1321 transitions. [2024-11-27 23:22:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 23:22:01,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:01,934 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:01,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-27 23:22:02,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-27 23:22:02,134 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:22:02,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash -748400297, now seen corresponding path program 1 times [2024-11-27 23:22:02,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:02,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169059186] [2024-11-27 23:22:02,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:02,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:22:02,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635905547] [2024-11-27 23:22:02,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:02,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:02,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:02,158 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:02,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-27 23:22:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:02,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 23:22:02,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 24 proven. 107 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 23:22:04,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:08,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:08,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169059186] [2024-11-27 23:22:08,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:22:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635905547] [2024-11-27 23:22:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635905547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:08,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:08,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:22:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825792662] [2024-11-27 23:22:08,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:08,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:22:08,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:08,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:22:08,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:22:08,228 INFO L87 Difference]: Start difference. First operand 983 states and 1321 transitions. Second operand has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-27 23:22:11,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:11,008 INFO L93 Difference]: Finished difference Result 1007 states and 1340 transitions. [2024-11-27 23:22:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:22:11,009 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 201 [2024-11-27 23:22:11,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:11,010 INFO L225 Difference]: With dead ends: 1007 [2024-11-27 23:22:11,010 INFO L226 Difference]: Without dead ends: 1005 [2024-11-27 23:22:11,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:22:11,011 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 202 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:11,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 777 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:22:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-27 23:22:11,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 983. [2024-11-27 23:22:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3715976331360946) internal successors, (1159), 901 states have internal predecessors, (1159), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:22:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1317 transitions. [2024-11-27 23:22:11,110 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1317 transitions. Word has length 201 [2024-11-27 23:22:11,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:11,111 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1317 transitions. [2024-11-27 23:22:11,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-27 23:22:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1317 transitions. [2024-11-27 23:22:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-27 23:22:11,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:11,112 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:11,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-27 23:22:11,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-27 23:22:11,313 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:22:11,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:11,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1953143399, now seen corresponding path program 1 times [2024-11-27 23:22:11,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:11,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359312086] [2024-11-27 23:22:11,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:11,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:22:11,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797162669] [2024-11-27 23:22:11,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:11,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:11,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:11,342 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:11,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-27 23:22:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:11,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 23:22:11,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 3 proven. 102 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-27 23:22:16,008 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:18,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:18,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359312086] [2024-11-27 23:22:18,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:22:18,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797162669] [2024-11-27 23:22:18,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797162669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:18,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:18,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:22:18,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827062773] [2024-11-27 23:22:18,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:18,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:22:18,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:18,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:22:18,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:22:18,053 INFO L87 Difference]: Start difference. First operand 983 states and 1317 transitions. Second operand has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-27 23:22:24,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:22:28,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:28,412 INFO L93 Difference]: Finished difference Result 998 states and 1328 transitions. [2024-11-27 23:22:28,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:22:28,412 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 203 [2024-11-27 23:22:28,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:28,414 INFO L225 Difference]: With dead ends: 998 [2024-11-27 23:22:28,414 INFO L226 Difference]: Without dead ends: 997 [2024-11-27 23:22:28,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=233, Invalid=1327, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 23:22:28,415 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 477 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:28,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 622 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2845 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2024-11-27 23:22:28,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-27 23:22:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 983. [2024-11-27 23:22:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3692307692307693) internal successors, (1157), 901 states have internal predecessors, (1157), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:22:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1315 transitions. [2024-11-27 23:22:28,527 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1315 transitions. Word has length 203 [2024-11-27 23:22:28,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:28,527 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1315 transitions. [2024-11-27 23:22:28,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-27 23:22:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1315 transitions. [2024-11-27 23:22:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-27 23:22:28,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:28,528 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:28,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-11-27 23:22:28,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-27 23:22:28,729 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:22:28,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash -417903109, now seen corresponding path program 1 times [2024-11-27 23:22:28,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:28,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530818454] [2024-11-27 23:22:28,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:28,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:22:28,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057904238] [2024-11-27 23:22:28,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:28,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:28,761 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:28,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-27 23:22:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:28,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 23:22:28,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 21 proven. 125 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-27 23:22:33,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:34,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530818454] [2024-11-27 23:22:34,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:22:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057904238] [2024-11-27 23:22:34,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057904238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:34,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:34,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-27 23:22:34,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138940740] [2024-11-27 23:22:34,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:34,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:22:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:34,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:22:34,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:22:34,640 INFO L87 Difference]: Start difference. First operand 983 states and 1315 transitions. Second operand has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 23:22:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:39,077 INFO L93 Difference]: Finished difference Result 1001 states and 1328 transitions. [2024-11-27 23:22:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:22:39,078 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 204 [2024-11-27 23:22:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:39,080 INFO L225 Difference]: With dead ends: 1001 [2024-11-27 23:22:39,080 INFO L226 Difference]: Without dead ends: 999 [2024-11-27 23:22:39,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 23:22:39,081 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 187 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:39,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 576 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 23:22:39,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-27 23:22:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 983. [2024-11-27 23:22:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3644970414201183) internal successors, (1153), 901 states have internal predecessors, (1153), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:22:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1311 transitions. [2024-11-27 23:22:39,191 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1311 transitions. Word has length 204 [2024-11-27 23:22:39,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:39,191 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1311 transitions. [2024-11-27 23:22:39,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 23:22:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1311 transitions. [2024-11-27 23:22:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-27 23:22:39,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:39,192 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:39,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-27 23:22:39,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-27 23:22:39,393 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:22:39,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1358788125, now seen corresponding path program 1 times [2024-11-27 23:22:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:39,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755962763] [2024-11-27 23:22:39,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:39,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:22:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950142064] [2024-11-27 23:22:39,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:39,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:39,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:39,418 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:39,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-27 23:22:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:39,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 23:22:39,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-27 23:22:44,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:46,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:46,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755962763] [2024-11-27 23:22:46,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:22:46,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950142064] [2024-11-27 23:22:46,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950142064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:46,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:46,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:22:46,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57875265] [2024-11-27 23:22:46,074 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:46,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:22:46,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:46,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:22:46,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:22:46,075 INFO L87 Difference]: Start difference. First operand 983 states and 1311 transitions. Second operand has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-27 23:22:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:49,682 INFO L93 Difference]: Finished difference Result 996 states and 1320 transitions. [2024-11-27 23:22:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:22:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 207 [2024-11-27 23:22:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:49,684 INFO L225 Difference]: With dead ends: 996 [2024-11-27 23:22:49,684 INFO L226 Difference]: Without dead ends: 995 [2024-11-27 23:22:49,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 23:22:49,685 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 383 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:49,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 552 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 23:22:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-27 23:22:49,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 983. [2024-11-27 23:22:49,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.362130177514793) internal successors, (1151), 901 states have internal predecessors, (1151), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:22:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1309 transitions. [2024-11-27 23:22:49,795 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1309 transitions. Word has length 207 [2024-11-27 23:22:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:49,795 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1309 transitions. [2024-11-27 23:22:49,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-27 23:22:49,795 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1309 transitions. [2024-11-27 23:22:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-27 23:22:49,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:49,796 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:49,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-11-27 23:22:49,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:49,997 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:22:49,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:49,997 INFO L85 PathProgramCache]: Analyzing trace with hash -409609727, now seen corresponding path program 1 times [2024-11-27 23:22:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:49,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20482664] [2024-11-27 23:22:49,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:49,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:22:50,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46267876] [2024-11-27 23:22:50,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:50,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:50,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:50,020 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:50,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-27 23:22:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:50,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:22:50,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:51,459 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-27 23:22:51,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:52,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:52,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20482664] [2024-11-27 23:22:52,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:22:52,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46267876] [2024-11-27 23:22:52,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46267876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:52,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:52,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:22:52,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728554149] [2024-11-27 23:22:52,027 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:52,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:22:52,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:52,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:22:52,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:22:52,028 INFO L87 Difference]: Start difference. First operand 983 states and 1309 transitions. Second operand has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 23:22:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:53,985 INFO L93 Difference]: Finished difference Result 1001 states and 1310 transitions. [2024-11-27 23:22:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:22:53,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 210 [2024-11-27 23:22:53,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:53,987 INFO L225 Difference]: With dead ends: 1001 [2024-11-27 23:22:53,987 INFO L226 Difference]: Without dead ends: 999 [2024-11-27 23:22:53,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:22:53,988 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:53,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 819 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:22:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-27 23:22:54,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 981. [2024-11-27 23:22:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3594306049822065) internal successors, (1146), 899 states have internal predecessors, (1146), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:22:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1304 transitions. [2024-11-27 23:22:54,097 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1304 transitions. Word has length 210 [2024-11-27 23:22:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:54,097 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1304 transitions. [2024-11-27 23:22:54,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 23:22:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1304 transitions. [2024-11-27 23:22:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-27 23:22:54,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:54,098 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:54,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-27 23:22:54,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:54,299 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:22:54,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash 187000481, now seen corresponding path program 1 times [2024-11-27 23:22:54,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:54,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061597893] [2024-11-27 23:22:54,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:22:54,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785709037] [2024-11-27 23:22:54,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:54,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:54,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:54,350 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:54,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-27 23:22:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:54,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-27 23:22:54,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 48 proven. 112 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-27 23:22:58,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:16,243 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 48 proven. 112 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-27 23:23:16,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:16,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061597893] [2024-11-27 23:23:16,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:23:16,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785709037] [2024-11-27 23:23:16,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785709037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:23:16,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:23:16,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2024-11-27 23:23:16,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672761824] [2024-11-27 23:23:16,244 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:16,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 23:23:16,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:16,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 23:23:16,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=620, Unknown=2, NotChecked=0, Total=756 [2024-11-27 23:23:16,245 INFO L87 Difference]: Start difference. First operand 981 states and 1304 transitions. Second operand has 28 states, 27 states have (on average 9.62962962962963) internal successors, (260), 28 states have internal predecessors, (260), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 9 states have call successors, (30) [2024-11-27 23:23:47,424 WARN L286 SmtUtils]: Spent 29.26s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:23:53,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:23:57,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:03,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:08,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:16,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:19,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:26,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:42,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:44,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:24:48,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:00,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:05,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:09,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:10,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:12,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:15,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:19,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:25,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:28,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:32,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:25:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:34,996 INFO L93 Difference]: Finished difference Result 998 states and 1315 transitions. [2024-11-27 23:25:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 23:25:34,997 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 9.62962962962963) internal successors, (260), 28 states have internal predecessors, (260), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 9 states have call successors, (30) Word has length 211 [2024-11-27 23:25:34,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:34,999 INFO L225 Difference]: With dead ends: 998 [2024-11-27 23:25:34,999 INFO L226 Difference]: Without dead ends: 995 [2024-11-27 23:25:35,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 52.4s TimeCoverageRelationStatistics Valid=441, Invalid=1448, Unknown=3, NotChecked=0, Total=1892 [2024-11-27 23:25:35,000 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 359 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 88 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 4677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:35,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 752 Invalid, 4677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4579 Invalid, 10 Unknown, 0 Unchecked, 99.5s Time] [2024-11-27 23:25:35,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-27 23:25:35,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 981. [2024-11-27 23:25:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3475682087781733) internal successors, (1136), 899 states have internal predecessors, (1136), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 23:25:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1294 transitions. [2024-11-27 23:25:35,158 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1294 transitions. Word has length 211 [2024-11-27 23:25:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:35,158 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1294 transitions. [2024-11-27 23:25:35,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 9.62962962962963) internal successors, (260), 28 states have internal predecessors, (260), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 9 states have call successors, (30) [2024-11-27 23:25:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1294 transitions. [2024-11-27 23:25:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-27 23:25:35,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:35,160 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:35,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2024-11-27 23:25:35,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:35,360 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:25:35,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:35,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1502047747, now seen corresponding path program 1 times [2024-11-27 23:25:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:35,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955168853] [2024-11-27 23:25:35,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:35,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:25:35,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914294072] [2024-11-27 23:25:35,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:35,387 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:35,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-27 23:25:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:35,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:25:35,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 41 proven. 67 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-27 23:25:36,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:25:36,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:36,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955168853] [2024-11-27 23:25:36,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:25:36,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914294072] [2024-11-27 23:25:36,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914294072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:36,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:36,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:25:36,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253343384] [2024-11-27 23:25:36,787 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:25:36,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:25:36,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:36,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:25:36,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:25:36,788 INFO L87 Difference]: Start difference. First operand 981 states and 1294 transitions. Second operand has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-27 23:25:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:39,170 INFO L93 Difference]: Finished difference Result 1122 states and 1477 transitions. [2024-11-27 23:25:39,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:25:39,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 212 [2024-11-27 23:25:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:39,173 INFO L225 Difference]: With dead ends: 1122 [2024-11-27 23:25:39,173 INFO L226 Difference]: Without dead ends: 1119 [2024-11-27 23:25:39,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:25:39,173 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 154 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:39,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 817 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:25:39,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-11-27 23:25:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1081. [2024-11-27 23:25:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.3828877005347593) internal successors, (1293), 991 states have internal predecessors, (1293), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:25:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1467 transitions. [2024-11-27 23:25:39,343 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1467 transitions. Word has length 212 [2024-11-27 23:25:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:39,343 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1467 transitions. [2024-11-27 23:25:39,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-27 23:25:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1467 transitions. [2024-11-27 23:25:39,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-27 23:25:39,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:39,345 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:39,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-27 23:25:39,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2024-11-27 23:25:39,546 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:25:39,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1759693019, now seen corresponding path program 1 times [2024-11-27 23:25:39,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:39,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412396021] [2024-11-27 23:25:39,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:25:39,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1603763921] [2024-11-27 23:25:39,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:39,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:39,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:39,573 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:39,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-27 23:25:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:39,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 23:25:39,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:42,716 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 48 proven. 120 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-27 23:25:42,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:25:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:43,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412396021] [2024-11-27 23:25:43,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:25:43,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603763921] [2024-11-27 23:25:43,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603763921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:43,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:43,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 23:25:43,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424164352] [2024-11-27 23:25:43,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:25:43,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:25:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:43,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:25:43,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:25:43,278 INFO L87 Difference]: Start difference. First operand 1081 states and 1467 transitions. Second operand has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-27 23:25:48,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:25:52,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:25:53,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:26:01,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:01,499 INFO L93 Difference]: Finished difference Result 1088 states and 1470 transitions. [2024-11-27 23:26:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:26:01,499 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 215 [2024-11-27 23:26:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:01,501 INFO L225 Difference]: With dead ends: 1088 [2024-11-27 23:26:01,501 INFO L226 Difference]: Without dead ends: 1087 [2024-11-27 23:26:01,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=82, Invalid=469, Unknown=1, NotChecked=0, Total=552 [2024-11-27 23:26:01,502 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 183 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:01,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 697 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2222 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-27 23:26:01,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-27 23:26:01,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1081. [2024-11-27 23:26:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.3807486631016044) internal successors, (1291), 991 states have internal predecessors, (1291), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:26:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1465 transitions. [2024-11-27 23:26:01,656 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1465 transitions. Word has length 215 [2024-11-27 23:26:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:01,657 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1465 transitions. [2024-11-27 23:26:01,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-27 23:26:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1465 transitions. [2024-11-27 23:26:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-27 23:26:01,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:01,658 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:01,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-11-27 23:26:01,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-27 23:26:01,861 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:01,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:01,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1284091399, now seen corresponding path program 1 times [2024-11-27 23:26:01,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:01,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834635834] [2024-11-27 23:26:01,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:01,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:26:01,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000685754] [2024-11-27 23:26:01,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:01,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:01,886 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:01,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-27 23:26:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:02,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:26:02,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 71 proven. 75 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-27 23:26:03,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:07,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:07,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834635834] [2024-11-27 23:26:07,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:07,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000685754] [2024-11-27 23:26:07,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000685754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:07,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:07,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:26:07,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358638069] [2024-11-27 23:26:07,912 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:07,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:26:07,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:07,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:26:07,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-11-27 23:26:07,914 INFO L87 Difference]: Start difference. First operand 1081 states and 1465 transitions. Second operand has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-27 23:26:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:10,964 INFO L93 Difference]: Finished difference Result 1123 states and 1467 transitions. [2024-11-27 23:26:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:26:10,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 216 [2024-11-27 23:26:10,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:10,966 INFO L225 Difference]: With dead ends: 1123 [2024-11-27 23:26:10,966 INFO L226 Difference]: Without dead ends: 1120 [2024-11-27 23:26:10,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=160, Invalid=489, Unknown=1, NotChecked=0, Total=650 [2024-11-27 23:26:10,967 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 168 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:10,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 893 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:26:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-27 23:26:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1081. [2024-11-27 23:26:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.3679144385026738) internal successors, (1279), 991 states have internal predecessors, (1279), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:26:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1453 transitions. [2024-11-27 23:26:11,096 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1453 transitions. Word has length 216 [2024-11-27 23:26:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:11,096 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1453 transitions. [2024-11-27 23:26:11,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-27 23:26:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1453 transitions. [2024-11-27 23:26:11,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-27 23:26:11,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:11,098 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:11,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2024-11-27 23:26:11,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-11-27 23:26:11,298 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:11,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:11,299 INFO L85 PathProgramCache]: Analyzing trace with hash -840038501, now seen corresponding path program 3 times [2024-11-27 23:26:11,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:11,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801330504] [2024-11-27 23:26:11,299 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:26:11,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:11,346 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 23:26:11,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:26:11,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005585663] [2024-11-27 23:26:11,348 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:26:11,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:11,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:11,350 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:11,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-27 23:26:11,432 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:26:11,432 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:26:11,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:26:11,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-27 23:26:12,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:26:12,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801330504] [2024-11-27 23:26:12,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005585663] [2024-11-27 23:26:12,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005585663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:12,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:12,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:26:12,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563949337] [2024-11-27 23:26:12,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:12,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:12,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:12,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:12,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:26:12,045 INFO L87 Difference]: Start difference. First operand 1081 states and 1453 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:26:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:13,278 INFO L93 Difference]: Finished difference Result 1103 states and 1453 transitions. [2024-11-27 23:26:13,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:26:13,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 224 [2024-11-27 23:26:13,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:13,280 INFO L225 Difference]: With dead ends: 1103 [2024-11-27 23:26:13,281 INFO L226 Difference]: Without dead ends: 1102 [2024-11-27 23:26:13,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:26:13,281 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 92 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:13,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 622 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:26:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-27 23:26:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1080. [2024-11-27 23:26:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 935 states have (on average 1.3593582887700535) internal successors, (1271), 990 states have internal predecessors, (1271), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:26:13,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1445 transitions. [2024-11-27 23:26:13,425 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1445 transitions. Word has length 224 [2024-11-27 23:26:13,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:13,425 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1445 transitions. [2024-11-27 23:26:13,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:26:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1445 transitions. [2024-11-27 23:26:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-27 23:26:13,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:13,426 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:13,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-27 23:26:13,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:13,627 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:13,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:13,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1118982101, now seen corresponding path program 2 times [2024-11-27 23:26:13,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:13,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631707932] [2024-11-27 23:26:13,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:13,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:13,649 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:13,650 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:26:13,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197827581] [2024-11-27 23:26:13,651 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:13,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:13,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:13,655 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:13,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-27 23:26:13,766 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:13,766 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:26:13,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:26:13,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:14,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:14,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:14,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631707932] [2024-11-27 23:26:14,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:14,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197827581] [2024-11-27 23:26:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197827581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:14,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:14,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 23:26:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070071751] [2024-11-27 23:26:14,841 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:14,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:26:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:14,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:26:14,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:26:14,842 INFO L87 Difference]: Start difference. First operand 1080 states and 1445 transitions. Second operand has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-27 23:26:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:15,460 INFO L93 Difference]: Finished difference Result 1082 states and 1445 transitions. [2024-11-27 23:26:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 225 [2024-11-27 23:26:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:15,462 INFO L225 Difference]: With dead ends: 1082 [2024-11-27 23:26:15,462 INFO L226 Difference]: Without dead ends: 1081 [2024-11-27 23:26:15,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:26:15,463 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 91 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:15,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 363 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:26:15,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-27 23:26:15,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1080. [2024-11-27 23:26:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 935 states have (on average 1.358288770053476) internal successors, (1270), 990 states have internal predecessors, (1270), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:26:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1444 transitions. [2024-11-27 23:26:15,612 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1444 transitions. Word has length 225 [2024-11-27 23:26:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:15,612 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1444 transitions. [2024-11-27 23:26:15,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-27 23:26:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1444 transitions. [2024-11-27 23:26:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-27 23:26:15,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:15,613 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:15,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2024-11-27 23:26:15,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:15,814 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:15,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:15,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1899180930, now seen corresponding path program 1 times [2024-11-27 23:26:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:15,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558346920] [2024-11-27 23:26:15,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:26:15,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379917359] [2024-11-27 23:26:15,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:15,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:15,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:15,850 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:15,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-27 23:26:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:15,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:26:15,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 41 proven. 85 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:16,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:16,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558346920] [2024-11-27 23:26:16,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:16,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379917359] [2024-11-27 23:26:16,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379917359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:16,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:16,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-27 23:26:16,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071229501] [2024-11-27 23:26:16,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:16,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:16,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:16,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:16,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:26:16,713 INFO L87 Difference]: Start difference. First operand 1080 states and 1444 transitions. Second operand has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:26:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:17,533 INFO L93 Difference]: Finished difference Result 1101 states and 1453 transitions. [2024-11-27 23:26:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:26:17,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 226 [2024-11-27 23:26:17,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:17,535 INFO L225 Difference]: With dead ends: 1101 [2024-11-27 23:26:17,535 INFO L226 Difference]: Without dead ends: 1099 [2024-11-27 23:26:17,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:26:17,536 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 36 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:17,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 611 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:26:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-27 23:26:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1082. [2024-11-27 23:26:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 937 states have (on average 1.3543223052294557) internal successors, (1269), 992 states have internal predecessors, (1269), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:26:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1443 transitions. [2024-11-27 23:26:17,687 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1443 transitions. Word has length 226 [2024-11-27 23:26:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:17,687 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1443 transitions. [2024-11-27 23:26:17,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:26:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1443 transitions. [2024-11-27 23:26:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-27 23:26:17,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:17,689 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:17,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2024-11-27 23:26:17,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2024-11-27 23:26:17,889 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1254933148, now seen corresponding path program 1 times [2024-11-27 23:26:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:17,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004665762] [2024-11-27 23:26:17,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:26:17,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264715361] [2024-11-27 23:26:17,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:17,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:17,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:17,912 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:17,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-27 23:26:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:18,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:26:18,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:18,889 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:18,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:20,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004665762] [2024-11-27 23:26:20,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264715361] [2024-11-27 23:26:20,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264715361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:20,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:20,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:26:20,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143622471] [2024-11-27 23:26:20,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:20,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:26:20,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:20,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:26:20,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:26:20,117 INFO L87 Difference]: Start difference. First operand 1082 states and 1443 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:26:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:21,397 INFO L93 Difference]: Finished difference Result 1200 states and 1578 transitions. [2024-11-27 23:26:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:26:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 227 [2024-11-27 23:26:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:21,400 INFO L225 Difference]: With dead ends: 1200 [2024-11-27 23:26:21,400 INFO L226 Difference]: Without dead ends: 1198 [2024-11-27 23:26:21,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:26:21,400 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 168 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:21,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 746 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:26:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-27 23:26:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1178. [2024-11-27 23:26:21,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1025 states have (on average 1.342439024390244) internal successors, (1376), 1080 states have internal predecessors, (1376), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-27 23:26:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1566 transitions. [2024-11-27 23:26:21,549 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1566 transitions. Word has length 227 [2024-11-27 23:26:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:21,549 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1566 transitions. [2024-11-27 23:26:21,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:26:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1566 transitions. [2024-11-27 23:26:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-27 23:26:21,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:21,551 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:21,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2024-11-27 23:26:21,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:21,752 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:21,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:21,752 INFO L85 PathProgramCache]: Analyzing trace with hash -248221756, now seen corresponding path program 1 times [2024-11-27 23:26:21,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:21,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390160964] [2024-11-27 23:26:21,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:21,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 23:26:22,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:22,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390160964] [2024-11-27 23:26:22,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390160964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:22,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539666672] [2024-11-27 23:26:22,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:22,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:22,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:22,009 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:22,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-27 23:26:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:22,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:26:22,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 23:26:22,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:22,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539666672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:22,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:26:22,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:26:22,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405718346] [2024-11-27 23:26:22,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:22,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:26:22,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:22,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:26:22,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:26:22,519 INFO L87 Difference]: Start difference. First operand 1178 states and 1566 transitions. Second operand has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-27 23:26:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:23,702 INFO L93 Difference]: Finished difference Result 1370 states and 1770 transitions. [2024-11-27 23:26:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:26:23,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 228 [2024-11-27 23:26:23,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:23,715 INFO L225 Difference]: With dead ends: 1370 [2024-11-27 23:26:23,715 INFO L226 Difference]: Without dead ends: 1369 [2024-11-27 23:26:23,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:26:23,716 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 170 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:23,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 832 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:26:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-27 23:26:23,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1280. [2024-11-27 23:26:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1119 states have (on average 1.3699731903485255) internal successors, (1533), 1174 states have internal predecessors, (1533), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-27 23:26:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1739 transitions. [2024-11-27 23:26:23,990 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1739 transitions. Word has length 228 [2024-11-27 23:26:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:23,991 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1739 transitions. [2024-11-27 23:26:23,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-27 23:26:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1739 transitions. [2024-11-27 23:26:23,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-27 23:26:23,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:23,993 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:24,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2024-11-27 23:26:24,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:24,194 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:24,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash 895060326, now seen corresponding path program 1 times [2024-11-27 23:26:24,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:24,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441675997] [2024-11-27 23:26:24,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:24,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:26:24,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816497488] [2024-11-27 23:26:24,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:24,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:24,223 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:24,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-27 23:26:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:24,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:26:24,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 41 proven. 88 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:25,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:25,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:25,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441675997] [2024-11-27 23:26:25,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:25,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816497488] [2024-11-27 23:26:25,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816497488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:25,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:25,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:26:25,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850428182] [2024-11-27 23:26:25,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:25,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:26:25,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:25,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:26:25,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:26:25,608 INFO L87 Difference]: Start difference. First operand 1280 states and 1739 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:26:26,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:26,671 INFO L93 Difference]: Finished difference Result 1295 states and 1739 transitions. [2024-11-27 23:26:26,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:26:26,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 229 [2024-11-27 23:26:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:26,674 INFO L225 Difference]: With dead ends: 1295 [2024-11-27 23:26:26,674 INFO L226 Difference]: Without dead ends: 1294 [2024-11-27 23:26:26,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:26:26,674 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 30 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:26,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 703 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:26:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-27 23:26:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1280. [2024-11-27 23:26:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1119 states have (on average 1.3681858802502234) internal successors, (1531), 1174 states have internal predecessors, (1531), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-27 23:26:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1737 transitions. [2024-11-27 23:26:26,937 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1737 transitions. Word has length 229 [2024-11-27 23:26:26,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:26,938 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1737 transitions. [2024-11-27 23:26:26,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:26:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1737 transitions. [2024-11-27 23:26:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-27 23:26:26,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:26,940 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:26,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-27 23:26:27,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:27,140 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:27,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:27,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1090527035, now seen corresponding path program 2 times [2024-11-27 23:26:27,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:27,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320220495] [2024-11-27 23:26:27,141 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:27,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:27,160 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:27,161 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:26:27,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043127289] [2024-11-27 23:26:27,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:27,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:27,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:27,164 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:27,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-27 23:26:27,272 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:27,272 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:26:27,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:26:27,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 85 proven. 46 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:27,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:27,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:27,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320220495] [2024-11-27 23:26:27,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:27,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043127289] [2024-11-27 23:26:27,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043127289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:27,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:27,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-27 23:26:27,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487090696] [2024-11-27 23:26:27,706 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:27,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:27,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:27,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:27,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:26:27,707 INFO L87 Difference]: Start difference. First operand 1280 states and 1737 transitions. Second operand has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 23:26:28,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:28,473 INFO L93 Difference]: Finished difference Result 1308 states and 1737 transitions. [2024-11-27 23:26:28,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:26:28,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 229 [2024-11-27 23:26:28,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:28,476 INFO L225 Difference]: With dead ends: 1308 [2024-11-27 23:26:28,476 INFO L226 Difference]: Without dead ends: 1306 [2024-11-27 23:26:28,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:26:28,477 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 150 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:28,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 876 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:26:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2024-11-27 23:26:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1278. [2024-11-27 23:26:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1119 states have (on average 1.357462019660411) internal successors, (1519), 1172 states have internal predecessors, (1519), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-27 23:26:28,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1725 transitions. [2024-11-27 23:26:28,741 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1725 transitions. Word has length 229 [2024-11-27 23:26:28,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:28,742 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1725 transitions. [2024-11-27 23:26:28,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 23:26:28,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1725 transitions. [2024-11-27 23:26:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-27 23:26:28,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:28,744 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:28,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2024-11-27 23:26:28,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2024-11-27 23:26:28,944 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:28,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash -16842061, now seen corresponding path program 2 times [2024-11-27 23:26:28,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:28,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665137853] [2024-11-27 23:26:28,945 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:28,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:28,962 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:28,962 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:26:28,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922554949] [2024-11-27 23:26:28,963 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:28,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:28,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:28,968 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:28,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-27 23:26:29,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:29,083 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:26:29,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:26:29,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-27 23:26:31,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:38,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:38,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665137853] [2024-11-27 23:26:38,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:38,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922554949] [2024-11-27 23:26:38,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922554949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:38,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:38,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:26:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964994409] [2024-11-27 23:26:38,887 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:38,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:26:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:38,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:26:38,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=206, Unknown=2, NotChecked=0, Total=272 [2024-11-27 23:26:38,888 INFO L87 Difference]: Start difference. First operand 1278 states and 1725 transitions. Second operand has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 23:26:40,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:40,933 INFO L93 Difference]: Finished difference Result 1415 states and 1905 transitions. [2024-11-27 23:26:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:26:40,934 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 229 [2024-11-27 23:26:40,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:40,936 INFO L225 Difference]: With dead ends: 1415 [2024-11-27 23:26:40,936 INFO L226 Difference]: Without dead ends: 1412 [2024-11-27 23:26:40,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=124, Invalid=380, Unknown=2, NotChecked=0, Total=506 [2024-11-27 23:26:40,936 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 323 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:40,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1095 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:26:40,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-27 23:26:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1396. [2024-11-27 23:26:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3553382233088835) internal successors, (1663), 1280 states have internal predecessors, (1663), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:26:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1889 transitions. [2024-11-27 23:26:41,104 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1889 transitions. Word has length 229 [2024-11-27 23:26:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:41,104 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1889 transitions. [2024-11-27 23:26:41,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 23:26:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1889 transitions. [2024-11-27 23:26:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-27 23:26:41,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:41,106 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:41,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2024-11-27 23:26:41,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:41,307 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:41,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:41,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1977066502, now seen corresponding path program 1 times [2024-11-27 23:26:41,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:41,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859609204] [2024-11-27 23:26:41,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:41,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:26:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066758256] [2024-11-27 23:26:41,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:41,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:41,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:41,335 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:41,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-27 23:26:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:41,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:26:41,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 41 proven. 89 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:42,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:42,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859609204] [2024-11-27 23:26:42,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066758256] [2024-11-27 23:26:42,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066758256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:42,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:42,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:26:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283679409] [2024-11-27 23:26:42,419 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:42,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:26:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:42,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:26:42,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:26:42,420 INFO L87 Difference]: Start difference. First operand 1396 states and 1889 transitions. Second operand has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-27 23:26:43,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:43,260 INFO L93 Difference]: Finished difference Result 1480 states and 1914 transitions. [2024-11-27 23:26:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:26:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 230 [2024-11-27 23:26:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:43,263 INFO L225 Difference]: With dead ends: 1480 [2024-11-27 23:26:43,263 INFO L226 Difference]: Without dead ends: 1479 [2024-11-27 23:26:43,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:26:43,264 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 219 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:43,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 622 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:26:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-11-27 23:26:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1396. [2024-11-27 23:26:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.354523227383863) internal successors, (1662), 1280 states have internal predecessors, (1662), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:26:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1888 transitions. [2024-11-27 23:26:43,463 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1888 transitions. Word has length 230 [2024-11-27 23:26:43,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:43,463 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1888 transitions. [2024-11-27 23:26:43,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-27 23:26:43,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1888 transitions. [2024-11-27 23:26:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-27 23:26:43,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:43,464 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:43,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-11-27 23:26:43,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:43,665 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:43,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:43,665 INFO L85 PathProgramCache]: Analyzing trace with hash -522103706, now seen corresponding path program 2 times [2024-11-27 23:26:43,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:43,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992117391] [2024-11-27 23:26:43,666 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:43,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:43,682 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:43,682 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:26:43,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652733501] [2024-11-27 23:26:43,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:43,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:43,685 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:43,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-11-27 23:26:43,787 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:43,787 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:26:43,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:26:43,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-27 23:26:45,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:54,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:54,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992117391] [2024-11-27 23:26:54,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:54,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652733501] [2024-11-27 23:26:54,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652733501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:54,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:54,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:26:54,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148499999] [2024-11-27 23:26:54,230 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:54,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:26:54,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:54,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:26:54,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=206, Unknown=2, NotChecked=0, Total=272 [2024-11-27 23:26:54,231 INFO L87 Difference]: Start difference. First operand 1396 states and 1888 transitions. Second operand has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 23:26:56,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:56,316 INFO L93 Difference]: Finished difference Result 1415 states and 1897 transitions. [2024-11-27 23:26:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:26:56,317 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 230 [2024-11-27 23:26:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:56,318 INFO L225 Difference]: With dead ends: 1415 [2024-11-27 23:26:56,318 INFO L226 Difference]: Without dead ends: 1412 [2024-11-27 23:26:56,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=136, Invalid=414, Unknown=2, NotChecked=0, Total=552 [2024-11-27 23:26:56,319 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 330 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:56,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1182 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:26:56,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-27 23:26:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1396. [2024-11-27 23:26:56,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3488182559087205) internal successors, (1655), 1280 states have internal predecessors, (1655), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:26:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1881 transitions. [2024-11-27 23:26:56,485 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1881 transitions. Word has length 230 [2024-11-27 23:26:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:56,485 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1881 transitions. [2024-11-27 23:26:56,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 23:26:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1881 transitions. [2024-11-27 23:26:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-27 23:26:56,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:56,486 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:56,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2024-11-27 23:26:56,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:56,687 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:26:56,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:56,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1159519592, now seen corresponding path program 1 times [2024-11-27 23:26:56,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:56,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364820972] [2024-11-27 23:26:56,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:56,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:26:56,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920192977] [2024-11-27 23:26:56,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:56,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:56,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:56,710 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:56,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-27 23:26:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:56,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:26:56,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 134 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 23:26:58,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:26:59,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:59,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364820972] [2024-11-27 23:26:59,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:26:59,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920192977] [2024-11-27 23:26:59,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920192977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:26:59,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:26:59,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-11-27 23:26:59,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656937622] [2024-11-27 23:26:59,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:59,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:26:59,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:59,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:26:59,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:26:59,260 INFO L87 Difference]: Start difference. First operand 1396 states and 1881 transitions. Second operand has 22 states, 21 states have (on average 13.380952380952381) internal successors, (281), 22 states have internal predecessors, (281), 10 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-27 23:27:02,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:02,294 INFO L93 Difference]: Finished difference Result 1440 states and 1881 transitions. [2024-11-27 23:27:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 23:27:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 13.380952380952381) internal successors, (281), 22 states have internal predecessors, (281), 10 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 231 [2024-11-27 23:27:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:02,296 INFO L225 Difference]: With dead ends: 1440 [2024-11-27 23:27:02,296 INFO L226 Difference]: Without dead ends: 1439 [2024-11-27 23:27:02,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:27:02,297 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 379 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:02,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1084 Invalid, 2339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 23:27:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-27 23:27:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1396. [2024-11-27 23:27:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3480032599837002) internal successors, (1654), 1280 states have internal predecessors, (1654), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:27:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1880 transitions. [2024-11-27 23:27:02,481 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1880 transitions. Word has length 231 [2024-11-27 23:27:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:02,481 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1880 transitions. [2024-11-27 23:27:02,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 13.380952380952381) internal successors, (281), 22 states have internal predecessors, (281), 10 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-27 23:27:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1880 transitions. [2024-11-27 23:27:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-27 23:27:02,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:02,484 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:02,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:02,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:02,684 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:02,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash 994654485, now seen corresponding path program 2 times [2024-11-27 23:27:02,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:02,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137053810] [2024-11-27 23:27:02,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:27:02,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:02,701 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:27:02,701 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:27:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073180123] [2024-11-27 23:27:02,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:27:02,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:02,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:02,703 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:02,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-11-27 23:27:02,812 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:27:02,812 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:27:02,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:27:02,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 3 proven. 140 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-27 23:27:05,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:10,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:10,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137053810] [2024-11-27 23:27:10,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:10,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073180123] [2024-11-27 23:27:10,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073180123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:10,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:10,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:27:10,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53078567] [2024-11-27 23:27:10,043 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:10,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:27:10,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:10,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:27:10,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=228, Unknown=2, NotChecked=0, Total=306 [2024-11-27 23:27:10,044 INFO L87 Difference]: Start difference. First operand 1396 states and 1880 transitions. Second operand has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 23:27:12,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:12,049 INFO L93 Difference]: Finished difference Result 1416 states and 1897 transitions. [2024-11-27 23:27:12,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:27:12,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 231 [2024-11-27 23:27:12,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:12,052 INFO L225 Difference]: With dead ends: 1416 [2024-11-27 23:27:12,052 INFO L226 Difference]: Without dead ends: 1410 [2024-11-27 23:27:12,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=141, Invalid=409, Unknown=2, NotChecked=0, Total=552 [2024-11-27 23:27:12,052 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 248 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:12,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 747 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:27:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-27 23:27:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1393. [2024-11-27 23:27:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3431372549019607) internal successors, (1644), 1277 states have internal predecessors, (1644), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:27:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1870 transitions. [2024-11-27 23:27:12,222 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1870 transitions. Word has length 231 [2024-11-27 23:27:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:12,223 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1870 transitions. [2024-11-27 23:27:12,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 23:27:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1870 transitions. [2024-11-27 23:27:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-27 23:27:12,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:12,224 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:12,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2024-11-27 23:27:12,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:12,425 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:12,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1585369160, now seen corresponding path program 1 times [2024-11-27 23:27:12,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:12,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233703180] [2024-11-27 23:27:12,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:12,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 23:27:12,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:12,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233703180] [2024-11-27 23:27:12,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233703180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:12,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786102949] [2024-11-27 23:27:12,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:12,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:12,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:12,640 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:12,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-11-27 23:27:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:12,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:27:12,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 23:27:13,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:13,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786102949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:13,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:27:13,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:27:13,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134860108] [2024-11-27 23:27:13,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:13,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:27:13,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:13,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:27:13,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:27:13,235 INFO L87 Difference]: Start difference. First operand 1393 states and 1870 transitions. Second operand has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-27 23:27:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:14,191 INFO L93 Difference]: Finished difference Result 1423 states and 1870 transitions. [2024-11-27 23:27:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:27:14,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 232 [2024-11-27 23:27:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:14,194 INFO L225 Difference]: With dead ends: 1423 [2024-11-27 23:27:14,194 INFO L226 Difference]: Without dead ends: 1422 [2024-11-27 23:27:14,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:27:14,195 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 77 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:14,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1126 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:27:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-11-27 23:27:14,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1393. [2024-11-27 23:27:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.341503267973856) internal successors, (1642), 1277 states have internal predecessors, (1642), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:27:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1868 transitions. [2024-11-27 23:27:14,357 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1868 transitions. Word has length 232 [2024-11-27 23:27:14,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:14,357 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1868 transitions. [2024-11-27 23:27:14,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-27 23:27:14,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1868 transitions. [2024-11-27 23:27:14,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-27 23:27:14,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:14,359 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:14,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:14,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2024-11-27 23:27:14,560 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:14,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:14,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1901803882, now seen corresponding path program 1 times [2024-11-27 23:27:14,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:14,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380525483] [2024-11-27 23:27:14,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:14,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537767520] [2024-11-27 23:27:14,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:14,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:14,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:14,606 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:14,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-11-27 23:27:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:14,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:27:14,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 41 proven. 92 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:27:15,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:16,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:16,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380525483] [2024-11-27 23:27:16,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:16,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537767520] [2024-11-27 23:27:16,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537767520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:16,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:16,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:27:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90028766] [2024-11-27 23:27:16,121 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:16,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:27:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:16,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:27:16,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:27:16,122 INFO L87 Difference]: Start difference. First operand 1393 states and 1868 transitions. Second operand has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-27 23:27:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:17,380 INFO L93 Difference]: Finished difference Result 1413 states and 1868 transitions. [2024-11-27 23:27:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:27:17,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 233 [2024-11-27 23:27:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:17,382 INFO L225 Difference]: With dead ends: 1413 [2024-11-27 23:27:17,382 INFO L226 Difference]: Without dead ends: 1412 [2024-11-27 23:27:17,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:27:17,382 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 180 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:17,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 604 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:27:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-27 23:27:17,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1393. [2024-11-27 23:27:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3406862745098038) internal successors, (1641), 1277 states have internal predecessors, (1641), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:27:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1867 transitions. [2024-11-27 23:27:17,534 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1867 transitions. Word has length 233 [2024-11-27 23:27:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:17,534 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1867 transitions. [2024-11-27 23:27:17,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-27 23:27:17,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1867 transitions. [2024-11-27 23:27:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-27 23:27:17,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:17,536 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:17,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2024-11-27 23:27:17,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2024-11-27 23:27:17,737 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:17,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:17,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2022535482, now seen corresponding path program 3 times [2024-11-27 23:27:17,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:17,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659808506] [2024-11-27 23:27:17,737 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:27:17,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:17,766 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 23:27:17,767 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:27:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:27:17,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:17,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659808506] [2024-11-27 23:27:17,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659808506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:17,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072382368] [2024-11-27 23:27:17,951 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:27:17,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:17,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:17,953 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:17,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-11-27 23:27:18,062 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 23:27:18,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:27:18,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:27:18,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:27:18,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 23:27:18,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072382368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:27:18,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:27:18,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-11-27 23:27:18,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25127926] [2024-11-27 23:27:18,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:18,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:27:18,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:18,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:27:18,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:27:18,532 INFO L87 Difference]: Start difference. First operand 1393 states and 1867 transitions. Second operand has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 23:27:19,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:19,373 INFO L93 Difference]: Finished difference Result 2343 states and 3260 transitions. [2024-11-27 23:27:19,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:27:19,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 235 [2024-11-27 23:27:19,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:19,377 INFO L225 Difference]: With dead ends: 2343 [2024-11-27 23:27:19,377 INFO L226 Difference]: Without dead ends: 2314 [2024-11-27 23:27:19,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 468 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:27:19,378 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 829 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:19,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1196 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:27:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2024-11-27 23:27:19,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1605. [2024-11-27 23:27:19,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1420 states have (on average 1.3852112676056338) internal successors, (1967), 1473 states have internal predecessors, (1967), 129 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-27 23:27:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2225 transitions. [2024-11-27 23:27:19,572 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2225 transitions. Word has length 235 [2024-11-27 23:27:19,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:19,572 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2225 transitions. [2024-11-27 23:27:19,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 23:27:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2225 transitions. [2024-11-27 23:27:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-27 23:27:19,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:19,574 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:19,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2024-11-27 23:27:19,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-11-27 23:27:19,774 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:19,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -56329316, now seen corresponding path program 1 times [2024-11-27 23:27:19,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:19,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999269144] [2024-11-27 23:27:19,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:19,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862424088] [2024-11-27 23:27:19,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:19,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:19,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:19,797 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:19,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-11-27 23:27:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:19,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:27:19,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 3 proven. 165 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-27 23:27:21,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:22,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:22,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999269144] [2024-11-27 23:27:22,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:22,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862424088] [2024-11-27 23:27:22,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862424088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:22,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:22,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 23:27:22,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413040306] [2024-11-27 23:27:22,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:22,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:27:22,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:22,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:27:22,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:27:22,031 INFO L87 Difference]: Start difference. First operand 1605 states and 2225 transitions. Second operand has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:24,676 INFO L93 Difference]: Finished difference Result 1768 states and 2474 transitions. [2024-11-27 23:27:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:27:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 244 [2024-11-27 23:27:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:24,679 INFO L225 Difference]: With dead ends: 1768 [2024-11-27 23:27:24,680 INFO L226 Difference]: Without dead ends: 1767 [2024-11-27 23:27:24,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:27:24,681 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 386 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:24,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1342 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:27:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-27 23:27:24,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1736. [2024-11-27 23:27:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4119558154645875) internal successors, (2173), 1592 states have internal predecessors, (2173), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 23:27:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2455 transitions. [2024-11-27 23:27:24,908 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2455 transitions. Word has length 244 [2024-11-27 23:27:24,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:24,908 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2455 transitions. [2024-11-27 23:27:24,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2455 transitions. [2024-11-27 23:27:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-27 23:27:24,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:24,909 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:24,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2024-11-27 23:27:25,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-11-27 23:27:25,110 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:25,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:25,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1746208714, now seen corresponding path program 1 times [2024-11-27 23:27:25,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:25,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741724799] [2024-11-27 23:27:25,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:25,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:25,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367691128] [2024-11-27 23:27:25,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:25,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:25,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:25,136 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:25,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-11-27 23:27:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:25,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:27:25,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:27,199 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 3 proven. 168 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-27 23:27:27,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:27,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741724799] [2024-11-27 23:27:27,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367691128] [2024-11-27 23:27:27,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367691128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:27,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:27,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 23:27:27,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602552369] [2024-11-27 23:27:27,569 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:27,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:27:27,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:27,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:27:27,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:27:27,570 INFO L87 Difference]: Start difference. First operand 1736 states and 2455 transitions. Second operand has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:29,553 INFO L93 Difference]: Finished difference Result 1768 states and 2471 transitions. [2024-11-27 23:27:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:27:29,553 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 245 [2024-11-27 23:27:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:29,556 INFO L225 Difference]: With dead ends: 1768 [2024-11-27 23:27:29,556 INFO L226 Difference]: Without dead ends: 1767 [2024-11-27 23:27:29,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:27:29,557 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 407 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:29,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1000 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:27:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-27 23:27:29,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1736. [2024-11-27 23:27:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.410006497725796) internal successors, (2170), 1592 states have internal predecessors, (2170), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 23:27:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2452 transitions. [2024-11-27 23:27:29,831 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2452 transitions. Word has length 245 [2024-11-27 23:27:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:29,831 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2452 transitions. [2024-11-27 23:27:29,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2452 transitions. [2024-11-27 23:27:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-27 23:27:29,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:29,833 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:29,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2024-11-27 23:27:30,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-11-27 23:27:30,033 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:30,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:30,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1702104798, now seen corresponding path program 1 times [2024-11-27 23:27:30,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:30,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933861686] [2024-11-27 23:27:30,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:30,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949383127] [2024-11-27 23:27:30,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:30,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:30,082 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:30,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-11-27 23:27:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:30,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:27:30,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 3 proven. 171 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-27 23:27:31,800 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:31,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:31,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933861686] [2024-11-27 23:27:31,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:31,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949383127] [2024-11-27 23:27:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949383127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:31,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:31,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:27:31,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271194930] [2024-11-27 23:27:31,962 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:31,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:27:31,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:31,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:27:31,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:27:31,963 INFO L87 Difference]: Start difference. First operand 1736 states and 2452 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:34,685 INFO L93 Difference]: Finished difference Result 1755 states and 2454 transitions. [2024-11-27 23:27:34,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:27:34,686 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 246 [2024-11-27 23:27:34,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:34,689 INFO L225 Difference]: With dead ends: 1755 [2024-11-27 23:27:34,689 INFO L226 Difference]: Without dead ends: 1754 [2024-11-27 23:27:34,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:27:34,690 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 528 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:34,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 869 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:27:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-27 23:27:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-27 23:27:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4080571799870045) internal successors, (2167), 1592 states have internal predecessors, (2167), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 23:27:34,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2449 transitions. [2024-11-27 23:27:34,904 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2449 transitions. Word has length 246 [2024-11-27 23:27:34,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:34,904 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2449 transitions. [2024-11-27 23:27:34,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:34,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2449 transitions. [2024-11-27 23:27:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-27 23:27:34,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:34,907 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:34,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2024-11-27 23:27:35,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-11-27 23:27:35,107 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:35,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1225641272, now seen corresponding path program 1 times [2024-11-27 23:27:35,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:35,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378167026] [2024-11-27 23:27:35,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:35,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346379067] [2024-11-27 23:27:35,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:35,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:35,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:35,132 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:35,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2024-11-27 23:27:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:35,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:27:35,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-27 23:27:36,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:37,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:37,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378167026] [2024-11-27 23:27:37,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:37,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346379067] [2024-11-27 23:27:37,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346379067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:37,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:37,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:27:37,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829256158] [2024-11-27 23:27:37,149 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:37,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:27:37,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:37,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:27:37,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:27:37,151 INFO L87 Difference]: Start difference. First operand 1736 states and 2449 transitions. Second operand has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:40,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:40,091 INFO L93 Difference]: Finished difference Result 1755 states and 2451 transitions. [2024-11-27 23:27:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:27:40,091 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 247 [2024-11-27 23:27:40,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:40,095 INFO L225 Difference]: With dead ends: 1755 [2024-11-27 23:27:40,095 INFO L226 Difference]: Without dead ends: 1754 [2024-11-27 23:27:40,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:27:40,096 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 550 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:40,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 902 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:27:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-27 23:27:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-27 23:27:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.406107862248213) internal successors, (2164), 1592 states have internal predecessors, (2164), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 23:27:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2446 transitions. [2024-11-27 23:27:40,463 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2446 transitions. Word has length 247 [2024-11-27 23:27:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:40,464 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2446 transitions. [2024-11-27 23:27:40,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-27 23:27:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2446 transitions. [2024-11-27 23:27:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-27 23:27:40,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:40,466 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:40,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2024-11-27 23:27:40,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2024-11-27 23:27:40,667 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:40,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash -659826144, now seen corresponding path program 1 times [2024-11-27 23:27:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:40,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664788224] [2024-11-27 23:27:40,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:40,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135860916] [2024-11-27 23:27:40,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:40,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:40,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:40,689 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:40,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2024-11-27 23:27:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:40,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:27:40,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-27 23:27:41,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-27 23:27:49,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:49,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664788224] [2024-11-27 23:27:49,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:27:49,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135860916] [2024-11-27 23:27:49,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135860916] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:27:49,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:27:49,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-27 23:27:49,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098019866] [2024-11-27 23:27:49,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:49,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:27:49,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:49,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:27:49,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-27 23:27:49,627 INFO L87 Difference]: Start difference. First operand 1736 states and 2446 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-27 23:27:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:50,877 INFO L93 Difference]: Finished difference Result 1822 states and 2471 transitions. [2024-11-27 23:27:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:27:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 248 [2024-11-27 23:27:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:50,880 INFO L225 Difference]: With dead ends: 1822 [2024-11-27 23:27:50,880 INFO L226 Difference]: Without dead ends: 1815 [2024-11-27 23:27:50,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 486 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-27 23:27:50,881 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 175 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:50,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 801 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:27:50,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-27 23:27:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1748. [2024-11-27 23:27:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1550 states have (on average 1.3993548387096775) internal successors, (2169), 1603 states have internal predecessors, (2169), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-27 23:27:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2453 transitions. [2024-11-27 23:27:51,091 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2453 transitions. Word has length 248 [2024-11-27 23:27:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:51,091 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2453 transitions. [2024-11-27 23:27:51,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-27 23:27:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2453 transitions. [2024-11-27 23:27:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-27 23:27:51,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:51,093 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:51,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2024-11-27 23:27:51,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2024-11-27 23:27:51,294 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:27:51,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:51,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1020226106, now seen corresponding path program 1 times [2024-11-27 23:27:51,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:51,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299355159] [2024-11-27 23:27:51,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:51,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:27:51,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742652363] [2024-11-27 23:27:51,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:51,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:51,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:51,321 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:51,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-11-27 23:27:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:51,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:27:51,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-27 23:27:51,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:00,415 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-27 23:28:00,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:00,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299355159] [2024-11-27 23:28:00,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:28:00,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742652363] [2024-11-27 23:28:00,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742652363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:00,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:28:00,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-27 23:28:00,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250577345] [2024-11-27 23:28:00,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:00,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:28:00,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:00,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:28:00,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-27 23:28:00,417 INFO L87 Difference]: Start difference. First operand 1748 states and 2453 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-27 23:28:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:02,213 INFO L93 Difference]: Finished difference Result 1817 states and 2454 transitions. [2024-11-27 23:28:02,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:28:02,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 249 [2024-11-27 23:28:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:02,216 INFO L225 Difference]: With dead ends: 1817 [2024-11-27 23:28:02,216 INFO L226 Difference]: Without dead ends: 1810 [2024-11-27 23:28:02,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-27 23:28:02,217 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 173 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:02,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 740 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:28:02,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-27 23:28:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1623. [2024-11-27 23:28:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1436 states have (on average 1.3746518105849581) internal successors, (1974), 1489 states have internal predecessors, (1974), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-27 23:28:02,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2236 transitions. [2024-11-27 23:28:02,415 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2236 transitions. Word has length 249 [2024-11-27 23:28:02,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:02,416 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2236 transitions. [2024-11-27 23:28:02,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-27 23:28:02,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2236 transitions. [2024-11-27 23:28:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-27 23:28:02,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:02,418 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:02,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2024-11-27 23:28:02,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-11-27 23:28:02,621 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:28:02,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:02,622 INFO L85 PathProgramCache]: Analyzing trace with hash 647056584, now seen corresponding path program 1 times [2024-11-27 23:28:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:02,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265934718] [2024-11-27 23:28:02,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:02,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:28:02,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621996259] [2024-11-27 23:28:02,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:02,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:02,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:02,655 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:02,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2024-11-27 23:28:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:02,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 23:28:02,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 3 proven. 186 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-27 23:28:05,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:10,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:10,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265934718] [2024-11-27 23:28:10,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:28:10,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621996259] [2024-11-27 23:28:10,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621996259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:10,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:28:10,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:28:10,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619588892] [2024-11-27 23:28:10,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:10,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:28:10,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:10,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:28:10,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=556, Unknown=1, NotChecked=0, Total=650 [2024-11-27 23:28:10,524 INFO L87 Difference]: Start difference. First operand 1623 states and 2236 transitions. Second operand has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-27 23:28:13,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:13,745 INFO L93 Difference]: Finished difference Result 1771 states and 2457 transitions. [2024-11-27 23:28:13,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:28:13,746 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 255 [2024-11-27 23:28:13,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:13,748 INFO L225 Difference]: With dead ends: 1771 [2024-11-27 23:28:13,748 INFO L226 Difference]: Without dead ends: 1767 [2024-11-27 23:28:13,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=194, Invalid=1137, Unknown=1, NotChecked=0, Total=1332 [2024-11-27 23:28:13,748 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 517 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 3389 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:13,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 881 Invalid, 3429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3389 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 23:28:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-27 23:28:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1745. [2024-11-27 23:28:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1547 states have (on average 1.3865546218487395) internal successors, (2145), 1600 states have internal predecessors, (2145), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-27 23:28:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2429 transitions. [2024-11-27 23:28:14,016 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2429 transitions. Word has length 255 [2024-11-27 23:28:14,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:14,017 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2429 transitions. [2024-11-27 23:28:14,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-27 23:28:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2429 transitions. [2024-11-27 23:28:14,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-27 23:28:14,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:14,019 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:14,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2024-11-27 23:28:14,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-11-27 23:28:14,220 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:28:14,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash -948877654, now seen corresponding path program 1 times [2024-11-27 23:28:14,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:14,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939798585] [2024-11-27 23:28:14,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:14,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:28:14,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332783021] [2024-11-27 23:28:14,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:14,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:14,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:14,243 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:14,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2024-11-27 23:28:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:14,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 23:28:14,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 3 proven. 192 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-27 23:28:17,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 23:28:19,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939798585] [2024-11-27 23:28:19,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:28:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332783021] [2024-11-27 23:28:19,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332783021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:19,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:28:19,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-11-27 23:28:19,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426821406] [2024-11-27 23:28:19,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:19,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-27 23:28:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:19,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-27 23:28:19,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:28:19,007 INFO L87 Difference]: Start difference. First operand 1745 states and 2429 transitions. Second operand has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 23:28:42,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:28:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:44,470 INFO L93 Difference]: Finished difference Result 2023 states and 2820 transitions. [2024-11-27 23:28:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-27 23:28:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 257 [2024-11-27 23:28:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:44,474 INFO L225 Difference]: With dead ends: 2023 [2024-11-27 23:28:44,474 INFO L226 Difference]: Without dead ends: 2017 [2024-11-27 23:28:44,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1100, Invalid=4156, Unknown=0, NotChecked=0, Total=5256 [2024-11-27 23:28:44,475 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 1716 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 205 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 5187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:44,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 1695 Invalid, 5187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 4981 Invalid, 1 Unknown, 0 Unchecked, 21.1s Time] [2024-11-27 23:28:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-27 23:28:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1920. [2024-11-27 23:28:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3919156414762741) internal successors, (2376), 1759 states have internal predecessors, (2376), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2692 transitions. [2024-11-27 23:28:44,732 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2692 transitions. Word has length 257 [2024-11-27 23:28:44,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:44,732 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2692 transitions. [2024-11-27 23:28:44,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 23:28:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2692 transitions. [2024-11-27 23:28:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-27 23:28:44,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:44,734 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:44,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2024-11-27 23:28:44,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:44,935 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:28:44,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1338355572, now seen corresponding path program 2 times [2024-11-27 23:28:44,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:44,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360003798] [2024-11-27 23:28:44,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:44,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:44,963 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:44,963 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:28:44,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725371054] [2024-11-27 23:28:44,965 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:44,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:44,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:44,968 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:44,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2024-11-27 23:28:45,109 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:45,110 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:45,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 23:28:45,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 3 proven. 198 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-27 23:28:48,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:48,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:48,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360003798] [2024-11-27 23:28:48,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:28:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725371054] [2024-11-27 23:28:48,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725371054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:48,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:28:48,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 23:28:48,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968743729] [2024-11-27 23:28:48,902 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:48,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:28:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:48,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:28:48,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:28:48,903 INFO L87 Difference]: Start difference. First operand 1920 states and 2692 transitions. Second operand has 18 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-27 23:28:52,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:52,177 INFO L93 Difference]: Finished difference Result 1930 states and 2692 transitions. [2024-11-27 23:28:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:28:52,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 259 [2024-11-27 23:28:52,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:52,181 INFO L225 Difference]: With dead ends: 1930 [2024-11-27 23:28:52,181 INFO L226 Difference]: Without dead ends: 1929 [2024-11-27 23:28:52,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:28:52,182 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 417 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:52,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 833 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 23:28:52,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-27 23:28:52,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1920. [2024-11-27 23:28:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3913298183948448) internal successors, (2375), 1759 states have internal predecessors, (2375), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:52,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2691 transitions. [2024-11-27 23:28:52,435 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2691 transitions. Word has length 259 [2024-11-27 23:28:52,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:52,435 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2691 transitions. [2024-11-27 23:28:52,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-27 23:28:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2691 transitions. [2024-11-27 23:28:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-27 23:28:52,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:52,436 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:52,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2024-11-27 23:28:52,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:52,636 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:28:52,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:52,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1460650331, now seen corresponding path program 2 times [2024-11-27 23:28:52,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:52,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633474250] [2024-11-27 23:28:52,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:52,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:52,659 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:52,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:28:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771242223] [2024-11-27 23:28:52,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:52,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:52,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:52,662 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:52,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2024-11-27 23:28:52,790 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:52,790 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:52,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:28:52,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 23:28:55,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:55,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:55,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633474250] [2024-11-27 23:28:55,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:28:55,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771242223] [2024-11-27 23:28:55,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771242223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:55,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:28:55,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:28:55,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925746905] [2024-11-27 23:28:55,270 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:55,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:28:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:55,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:28:55,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:28:55,271 INFO L87 Difference]: Start difference. First operand 1920 states and 2691 transitions. Second operand has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-27 23:28:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:58,831 INFO L93 Difference]: Finished difference Result 1929 states and 2691 transitions. [2024-11-27 23:28:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:28:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 260 [2024-11-27 23:28:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:58,835 INFO L225 Difference]: With dead ends: 1929 [2024-11-27 23:28:58,835 INFO L226 Difference]: Without dead ends: 1928 [2024-11-27 23:28:58,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:28:58,836 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 264 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:58,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1236 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:28:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-11-27 23:28:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1920. [2024-11-27 23:28:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3907439953134153) internal successors, (2374), 1759 states have internal predecessors, (2374), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2690 transitions. [2024-11-27 23:28:59,072 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2690 transitions. Word has length 260 [2024-11-27 23:28:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:59,073 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2690 transitions. [2024-11-27 23:28:59,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-27 23:28:59,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2690 transitions. [2024-11-27 23:28:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-27 23:28:59,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:59,074 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:59,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2024-11-27 23:28:59,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:59,274 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:28:59,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1893409305, now seen corresponding path program 2 times [2024-11-27 23:28:59,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:59,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224391255] [2024-11-27 23:28:59,275 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:59,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:59,299 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:59,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:28:59,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673217394] [2024-11-27 23:28:59,300 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:59,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:59,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:59,308 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:59,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2024-11-27 23:28:59,445 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:59,445 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:59,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:28:59,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 12 proven. 67 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-11-27 23:29:00,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:13,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224391255] [2024-11-27 23:29:13,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673217394] [2024-11-27 23:29:13,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673217394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:13,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:13,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 23:29:13,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288005676] [2024-11-27 23:29:13,232 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:13,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:29:13,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:13,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:29:13,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=80, Unknown=3, NotChecked=0, Total=110 [2024-11-27 23:29:13,233 INFO L87 Difference]: Start difference. First operand 1920 states and 2690 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 23:29:14,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:14,164 INFO L93 Difference]: Finished difference Result 1929 states and 2690 transitions. [2024-11-27 23:29:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:29:14,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 261 [2024-11-27 23:29:14,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:14,168 INFO L225 Difference]: With dead ends: 1929 [2024-11-27 23:29:14,168 INFO L226 Difference]: Without dead ends: 1928 [2024-11-27 23:29:14,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=27, Invalid=80, Unknown=3, NotChecked=0, Total=110 [2024-11-27 23:29:14,169 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 44 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:14,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 705 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:29:14,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-11-27 23:29:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1920. [2024-11-27 23:29:14,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3872290568248389) internal successors, (2368), 1759 states have internal predecessors, (2368), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:29:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2684 transitions. [2024-11-27 23:29:14,428 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2684 transitions. Word has length 261 [2024-11-27 23:29:14,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:14,428 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2684 transitions. [2024-11-27 23:29:14,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 23:29:14,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2684 transitions. [2024-11-27 23:29:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 23:29:14,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:14,429 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:14,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2024-11-27 23:29:14,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2024-11-27 23:29:14,630 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:29:14,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1433853799, now seen corresponding path program 2 times [2024-11-27 23:29:14,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:14,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893387386] [2024-11-27 23:29:14,630 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:14,659 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:14,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:29:14,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578292524] [2024-11-27 23:29:14,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:14,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:14,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:14,663 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:14,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2024-11-27 23:29:14,817 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:14,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:14,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:29:14,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 15 proven. 194 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-27 23:29:16,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:17,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:17,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893387386] [2024-11-27 23:29:17,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:17,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578292524] [2024-11-27 23:29:17,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578292524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:17,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:17,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 23:29:17,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669760614] [2024-11-27 23:29:17,491 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:17,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:29:17,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:17,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:29:17,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:29:17,492 INFO L87 Difference]: Start difference. First operand 1920 states and 2684 transitions. Second operand has 11 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 23:29:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:19,255 INFO L93 Difference]: Finished difference Result 1943 states and 2709 transitions. [2024-11-27 23:29:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:29:19,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 262 [2024-11-27 23:29:19,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:19,258 INFO L225 Difference]: With dead ends: 1943 [2024-11-27 23:29:19,258 INFO L226 Difference]: Without dead ends: 1942 [2024-11-27 23:29:19,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:29:19,259 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 102 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:19,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1279 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:29:19,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2024-11-27 23:29:19,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1920. [2024-11-27 23:29:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3854715875805508) internal successors, (2365), 1759 states have internal predecessors, (2365), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:29:19,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2681 transitions. [2024-11-27 23:29:19,508 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2681 transitions. Word has length 262 [2024-11-27 23:29:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:19,508 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2681 transitions. [2024-11-27 23:29:19,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 23:29:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2681 transitions. [2024-11-27 23:29:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 23:29:19,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:19,510 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:19,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:19,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2024-11-27 23:29:19,710 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:29:19,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794921, now seen corresponding path program 1 times [2024-11-27 23:29:19,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:19,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522647561] [2024-11-27 23:29:19,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:19,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:19,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499126851] [2024-11-27 23:29:19,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:19,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:19,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:19,740 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:19,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2024-11-27 23:29:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:19,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:29:19,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 39 proven. 215 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-27 23:29:24,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:26,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:26,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522647561] [2024-11-27 23:29:26,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:26,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499126851] [2024-11-27 23:29:26,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499126851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:26,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:26,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 23:29:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907238290] [2024-11-27 23:29:26,172 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:26,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:29:26,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:26,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:29:26,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:29:26,173 INFO L87 Difference]: Start difference. First operand 1920 states and 2681 transitions. Second operand has 18 states, 17 states have (on average 10.0) internal successors, (170), 16 states have internal predecessors, (170), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:29:33,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:29:37,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:29:38,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:29:42,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:29:45,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:45,702 INFO L93 Difference]: Finished difference Result 1943 states and 2706 transitions. [2024-11-27 23:29:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:29:45,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 10.0) internal successors, (170), 16 states have internal predecessors, (170), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) Word has length 263 [2024-11-27 23:29:45,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:45,705 INFO L225 Difference]: With dead ends: 1943 [2024-11-27 23:29:45,705 INFO L226 Difference]: Without dead ends: 1942 [2024-11-27 23:29:45,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=165, Invalid=1025, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 23:29:45,706 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 304 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 3715 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3715 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:45,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 684 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3715 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2024-11-27 23:29:45,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2024-11-27 23:29:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1920. [2024-11-27 23:29:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3837141183362625) internal successors, (2362), 1759 states have internal predecessors, (2362), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:29:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2678 transitions. [2024-11-27 23:29:45,984 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2678 transitions. Word has length 263 [2024-11-27 23:29:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:45,984 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2678 transitions. [2024-11-27 23:29:45,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.0) internal successors, (170), 16 states have internal predecessors, (170), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:29:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2678 transitions. [2024-11-27 23:29:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-27 23:29:45,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:45,986 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:45,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:46,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:46,187 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:29:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -750997591, now seen corresponding path program 2 times [2024-11-27 23:29:46,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:46,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484893003] [2024-11-27 23:29:46,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:46,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:46,208 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:46,208 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:29:46,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803107212] [2024-11-27 23:29:46,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:46,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:46,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:46,213 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:46,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2024-11-27 23:29:46,353 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:46,353 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:46,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-27 23:29:46,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 12 proven. 212 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-27 23:29:53,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:57,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484893003] [2024-11-27 23:29:57,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803107212] [2024-11-27 23:29:57,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803107212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:57,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:57,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-27 23:29:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784710200] [2024-11-27 23:29:57,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:57,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:29:57,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:57,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:29:57,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=867, Unknown=0, NotChecked=0, Total=992 [2024-11-27 23:29:57,616 INFO L87 Difference]: Start difference. First operand 1920 states and 2678 transitions. Second operand has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:30:07,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:07,101 INFO L93 Difference]: Finished difference Result 1935 states and 2689 transitions. [2024-11-27 23:30:07,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:30:07,102 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 264 [2024-11-27 23:30:07,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:07,104 INFO L225 Difference]: With dead ends: 1935 [2024-11-27 23:30:07,104 INFO L226 Difference]: Without dead ends: 1933 [2024-11-27 23:30:07,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=287, Invalid=1783, Unknown=0, NotChecked=0, Total=2070 [2024-11-27 23:30:07,105 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 600 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 4167 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:07,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 753 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4167 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-27 23:30:07,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-11-27 23:30:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1920. [2024-11-27 23:30:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.380199179847686) internal successors, (2356), 1759 states have internal predecessors, (2356), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:30:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2672 transitions. [2024-11-27 23:30:07,374 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2672 transitions. Word has length 264 [2024-11-27 23:30:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:07,374 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2672 transitions. [2024-11-27 23:30:07,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:30:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2672 transitions. [2024-11-27 23:30:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-27 23:30:07,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:07,375 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:07,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2024-11-27 23:30:07,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2024-11-27 23:30:07,576 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:30:07,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:07,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1806088725, now seen corresponding path program 2 times [2024-11-27 23:30:07,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:07,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746249224] [2024-11-27 23:30:07,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:07,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:07,603 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:07,604 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:07,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785449472] [2024-11-27 23:30:07,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:07,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:07,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:07,609 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:07,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2024-11-27 23:30:07,751 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:07,751 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:07,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-27 23:30:07,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 45 proven. 215 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-27 23:30:13,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:14,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:14,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746249224] [2024-11-27 23:30:14,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:14,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785449472] [2024-11-27 23:30:14,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785449472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:14,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:14,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-27 23:30:14,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803705216] [2024-11-27 23:30:14,907 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:14,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:30:14,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:14,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:30:14,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:30:14,908 INFO L87 Difference]: Start difference. First operand 1920 states and 2672 transitions. Second operand has 19 states, 18 states have (on average 9.555555555555555) internal successors, (172), 17 states have internal predecessors, (172), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:30:20,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:20,641 INFO L93 Difference]: Finished difference Result 1936 states and 2685 transitions. [2024-11-27 23:30:20,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:30:20,642 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.555555555555555) internal successors, (172), 17 states have internal predecessors, (172), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 265 [2024-11-27 23:30:20,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:20,645 INFO L225 Difference]: With dead ends: 1936 [2024-11-27 23:30:20,645 INFO L226 Difference]: Without dead ends: 1935 [2024-11-27 23:30:20,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=138, Invalid=984, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 23:30:20,646 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 204 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 4163 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 4187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:20,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 997 Invalid, 4187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4163 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 23:30:20,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2024-11-27 23:30:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1920. [2024-11-27 23:30:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3796133567662565) internal successors, (2355), 1759 states have internal predecessors, (2355), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:30:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2671 transitions. [2024-11-27 23:30:20,968 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2671 transitions. Word has length 265 [2024-11-27 23:30:20,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:20,969 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2671 transitions. [2024-11-27 23:30:20,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.555555555555555) internal successors, (172), 17 states have internal predecessors, (172), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:30:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2671 transitions. [2024-11-27 23:30:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-27 23:30:20,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:20,970 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:20,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2024-11-27 23:30:21,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:21,171 INFO L396 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:30:21,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:21,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1542735694, now seen corresponding path program 2 times [2024-11-27 23:30:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:21,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565019441] [2024-11-27 23:30:21,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:21,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:21,196 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:21,196 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:21,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304598272] [2024-11-27 23:30:21,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:21,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:21,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:21,199 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:21,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2024-11-27 23:30:21,335 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:21,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:21,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:30:21,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 12 proven. 198 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-27 23:30:23,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:56,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565019441] [2024-11-27 23:30:56,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304598272] [2024-11-27 23:30:56,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304598272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:56,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:56,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:30:56,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012441281] [2024-11-27 23:30:56,824 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:56,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:30:56,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:56,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:30:56,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=277, Unknown=9, NotChecked=0, Total=342 [2024-11-27 23:30:56,825 INFO L87 Difference]: Start difference. First operand 1920 states and 2671 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 23:30:59,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:59,031 INFO L93 Difference]: Finished difference Result 2077 states and 2876 transitions. [2024-11-27 23:30:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:30:59,031 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) Word has length 266 [2024-11-27 23:30:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:59,034 INFO L225 Difference]: With dead ends: 2077 [2024-11-27 23:30:59,034 INFO L226 Difference]: Without dead ends: 2076 [2024-11-27 23:30:59,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=56, Invalid=277, Unknown=9, NotChecked=0, Total=342 [2024-11-27 23:30:59,035 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 124 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:59,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1439 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:30:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2024-11-27 23:30:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2036. [2024-11-27 23:30:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2036 states, 1813 states have (on average 1.3888582460011032) internal successors, (2518), 1865 states have internal predecessors, (2518), 168 states have call successors, (168), 2 states have call predecessors, (168), 2 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-27 23:30:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2854 transitions. [2024-11-27 23:30:59,330 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2854 transitions. Word has length 266 [2024-11-27 23:30:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:59,331 INFO L471 AbstractCegarLoop]: Abstraction has 2036 states and 2854 transitions. [2024-11-27 23:30:59,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 23:30:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2854 transitions. [2024-11-27 23:30:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-27 23:30:59,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:59,332 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:59,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2024-11-27 23:30:59,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2024-11-27 23:30:59,533 INFO L396 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-27 23:30:59,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash -580166150, now seen corresponding path program 3 times [2024-11-27 23:30:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:59,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456183946] [2024-11-27 23:30:59,533 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:30:59,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:59,579 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 23:30:59,579 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:59,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334104731] [2024-11-27 23:30:59,581 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:30:59,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:59,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:59,583 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:59,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_685a892f-13a7-4897-a412-68e44dfa1437/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2024-11-27 23:30:59,786 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 23:30:59,786 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:59,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 23:30:59,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:04,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:09,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456183946] [2024-11-27 23:31:09,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334104731] [2024-11-27 23:31:09,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334104731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:09,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:09,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 23:31:09,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62380556] [2024-11-27 23:31:09,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:09,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:31:09,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:09,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:31:09,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:31:09,209 INFO L87 Difference]: Start difference. First operand 2036 states and 2854 transitions. Second operand has 26 states, 25 states have (on average 13.08) internal successors, (327), 26 states have internal predecessors, (327), 11 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 11 states have call predecessors, (38), 11 states have call successors, (38) [2024-11-27 23:31:27,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]