./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-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_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/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_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/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_e211729b-fadc-4f34-9615-ef672cf51fd0/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 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:06,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:07,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:53:07,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:07,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:07,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:07,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:07,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:07,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:07,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:07,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:07,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:07,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:07,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:07,131 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:07,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:07,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:07,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:07,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:07,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:07,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:07,134 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:07,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:07,134 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:07,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:07,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:07,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:07,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:07,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:07,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:07,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:07,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:07,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:07,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:07,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:07,136 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:07,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:07,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:07,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:07,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:07,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:07,137 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:07,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:07,137 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_e211729b-fadc-4f34-9615-ef672cf51fd0/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 -> 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 [2024-11-28 02:53:07,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:07,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:07,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:07,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:07,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:07,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-11-28 02:53:10,733 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/997972418/e68ef2fa43b6446799fac69ca3e6cc8d/FLAGa877a7853 [2024-11-28 02:53:11,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:53:11,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-11-28 02:53:11,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/997972418/e68ef2fa43b6446799fac69ca3e6cc8d/FLAGa877a7853 [2024-11-28 02:53:11,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/997972418/e68ef2fa43b6446799fac69ca3e6cc8d [2024-11-28 02:53:11,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:53:11,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:53:11,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:11,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:53:11,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:53:11,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1c8534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11, skipping insertion in model container [2024-11-28 02:53:11,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:53:11,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:11,349 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:53:11,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:11,386 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:53:11,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11 WrapperNode [2024-11-28 02:53:11,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:11,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:11,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:53:11,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:53:11,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,428 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-28 02:53:11,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:11,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:53:11,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:53:11,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:53:11,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,456 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]. [2024-11-28 02:53:11,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,465 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:53:11,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:53:11,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:53:11,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:53:11,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:11,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:53:11,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:53:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:53:11,619 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:53:11,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:53:12,031 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-28 02:53:12,032 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:53:12,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:53:12,045 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:53:12,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:12 BoogieIcfgContainer [2024-11-28 02:53:12,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:53:12,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:53:12,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:53:12,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:53:12,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:53:11" (1/3) ... [2024-11-28 02:53:12,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45398e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:12, skipping insertion in model container [2024-11-28 02:53:12,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (2/3) ... [2024-11-28 02:53:12,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45398e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:12, skipping insertion in model container [2024-11-28 02:53:12,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:12" (3/3) ... [2024-11-28 02:53:12,059 INFO L128 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound20.c [2024-11-28 02:53:12,077 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:53:12,079 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_valuebound20.c that has 3 procedures, 79 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-28 02:53:12,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:53:12,177 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;@2957e87a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:53:12,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-28 02:53:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 43 states have (on average 1.744186046511628) internal successors, (75), 66 states have internal predecessors, (75), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:53:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 02:53:12,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:12,195 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:12,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:12,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash 562289298, now seen corresponding path program 1 times [2024-11-28 02:53:12,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:12,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383530890] [2024-11-28 02:53:12,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:53:12,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:12,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383530890] [2024-11-28 02:53:12,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383530890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:12,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152154166] [2024-11-28 02:53:12,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:12,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:12,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:12,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:12,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:53:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:12,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:53:12,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:53:12,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:12,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152154166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:12,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:12,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:53:12,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632738090] [2024-11-28 02:53:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:12,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:53:12,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:12,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:53:12,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:53:12,524 INFO L87 Difference]: Start difference. First operand has 79 states, 43 states have (on average 1.744186046511628) internal successors, (75), 66 states have internal predecessors, (75), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:53:12,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:12,563 INFO L93 Difference]: Finished difference Result 154 states and 195 transitions. [2024-11-28 02:53:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:53:12,566 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-28 02:53:12,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:12,575 INFO L225 Difference]: With dead ends: 154 [2024-11-28 02:53:12,575 INFO L226 Difference]: Without dead ends: 71 [2024-11-28 02:53:12,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:53:12,587 INFO L435 NwaCegarLoop]: 88 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, 88 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 [2024-11-28 02:53:12,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-28 02:53:12,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-28 02:53:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 60 states have internal predecessors, (63), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:53:12,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-28 02:53:12,639 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 21 [2024-11-28 02:53:12,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:12,639 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-28 02:53:12,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:53:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-28 02:53:12,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 02:53:12,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:12,641 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:12,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:53:12,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:53:12,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:12,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1304517987, now seen corresponding path program 1 times [2024-11-28 02:53:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:12,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509132787] [2024-11-28 02:53:12,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:12,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:12,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145278514] [2024-11-28 02:53:12,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:12,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:12,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:12,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:12,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:53:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:12,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:53:12,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 02:53:13,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:13,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509132787] [2024-11-28 02:53:13,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:13,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145278514] [2024-11-28 02:53:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145278514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:13,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:13,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:53:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722740101] [2024-11-28 02:53:13,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:13,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:13,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:13,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:13,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:13,026 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:53:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:13,115 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2024-11-28 02:53:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-11-28 02:53:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:13,117 INFO L225 Difference]: With dead ends: 144 [2024-11-28 02:53:13,118 INFO L226 Difference]: Without dead ends: 96 [2024-11-28 02:53:13,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:13,119 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:13,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:13,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-28 02:53:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2024-11-28 02:53:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 74 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:53:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2024-11-28 02:53:13,136 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 30 [2024-11-28 02:53:13,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:13,138 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2024-11-28 02:53:13,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:53:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2024-11-28 02:53:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:53:13,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:13,139 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:53:13,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:53:13,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:13,340 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:13,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1077070625, now seen corresponding path program 1 times [2024-11-28 02:53:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239543817] [2024-11-28 02:53:13,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:13,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:13,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080404353] [2024-11-28 02:53:13,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:13,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:13,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:13,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:13,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:53:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:13,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:53:13,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:13,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:13,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:13,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239543817] [2024-11-28 02:53:13,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:13,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080404353] [2024-11-28 02:53:13,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080404353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:13,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:13,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:53:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072755814] [2024-11-28 02:53:13,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:13,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:13,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:13,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:13,519 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-28 02:53:13,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:13,658 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2024-11-28 02:53:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:13,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 38 [2024-11-28 02:53:13,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:13,660 INFO L225 Difference]: With dead ends: 124 [2024-11-28 02:53:13,661 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 02:53:13,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:13,662 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 39 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:13,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 105 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 02:53:13,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2024-11-28 02:53:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 65 states have (on average 1.6307692307692307) internal successors, (106), 88 states have internal predecessors, (106), 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) [2024-11-28 02:53:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2024-11-28 02:53:13,675 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 38 [2024-11-28 02:53:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:13,675 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2024-11-28 02:53:13,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-28 02:53:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2024-11-28 02:53:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:53:13,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:13,677 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:53:13,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:13,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 02:53:13,878 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:13,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1077070581, now seen corresponding path program 1 times [2024-11-28 02:53:13,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:13,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760324921] [2024-11-28 02:53:13,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:14,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:14,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760324921] [2024-11-28 02:53:14,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760324921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:14,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:14,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:53:14,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826424819] [2024-11-28 02:53:14,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:14,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:14,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:14,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:14,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:14,030 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-28 02:53:14,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:14,114 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2024-11-28 02:53:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:14,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 38 [2024-11-28 02:53:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:14,116 INFO L225 Difference]: With dead ends: 106 [2024-11-28 02:53:14,118 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 02:53:14,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:14,119 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:14,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 75 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:14,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 02:53:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-28 02:53:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 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) [2024-11-28 02:53:14,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-28 02:53:14,133 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 38 [2024-11-28 02:53:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:14,134 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-28 02:53:14,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-28 02:53:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-28 02:53:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 02:53:14,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:14,135 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:53:14,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:53:14,136 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:14,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:14,137 INFO L85 PathProgramCache]: Analyzing trace with hash 970550418, now seen corresponding path program 1 times [2024-11-28 02:53:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:14,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359202139] [2024-11-28 02:53:14,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:14,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:14,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359202139] [2024-11-28 02:53:14,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359202139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:14,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:14,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:53:14,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237693360] [2024-11-28 02:53:14,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:14,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:14,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:14,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:14,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:14,287 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2024-11-28 02:53:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:14,397 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-11-28 02:53:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 39 [2024-11-28 02:53:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:14,399 INFO L225 Difference]: With dead ends: 111 [2024-11-28 02:53:14,399 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 02:53:14,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:14,400 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:14,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 122 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 02:53:14,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-28 02:53:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 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) [2024-11-28 02:53:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-11-28 02:53:14,412 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 39 [2024-11-28 02:53:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:14,412 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-11-28 02:53:14,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2024-11-28 02:53:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-11-28 02:53:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 02:53:14,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:14,414 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:53:14,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:53:14,414 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:14,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash 22250241, now seen corresponding path program 1 times [2024-11-28 02:53:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:14,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600750808] [2024-11-28 02:53:14,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:14,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:14,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600750808] [2024-11-28 02:53:14,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600750808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:14,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:14,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521304654] [2024-11-28 02:53:14,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:14,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:53:14,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:14,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:53:14,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:53:14,618 INFO L87 Difference]: Start difference. First operand 104 states and 131 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) [2024-11-28 02:53:14,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:14,943 INFO L93 Difference]: Finished difference Result 118 states and 144 transitions. [2024-11-28 02:53:14,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:14,944 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 40 [2024-11-28 02:53:14,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:14,946 INFO L225 Difference]: With dead ends: 118 [2024-11-28 02:53:14,947 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 02:53:14,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:14,949 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 82 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:14,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 103 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:53:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 02:53:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2024-11-28 02:53:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 68 states have (on average 1.5294117647058822) internal successors, (104), 89 states have internal predecessors, (104), 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) [2024-11-28 02:53:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 134 transitions. [2024-11-28 02:53:14,994 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 134 transitions. Word has length 40 [2024-11-28 02:53:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:14,996 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 134 transitions. [2024-11-28 02:53:14,996 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) [2024-11-28 02:53:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 134 transitions. [2024-11-28 02:53:14,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:53:14,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:14,998 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-11-28 02:53:14,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:53:14,998 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:14,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash 689757554, now seen corresponding path program 1 times [2024-11-28 02:53:15,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:15,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431849857] [2024-11-28 02:53:15,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:15,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:15,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112066611] [2024-11-28 02:53:15,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:15,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:15,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:15,062 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:15,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:53:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:15,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:53:15,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:15,297 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:15,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431849857] [2024-11-28 02:53:15,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112066611] [2024-11-28 02:53:15,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112066611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:15,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:15,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:53:15,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573404092] [2024-11-28 02:53:15,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:15,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:15,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:15,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:15,299 INFO L87 Difference]: Start difference. First operand 107 states and 134 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2024-11-28 02:53:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:15,420 INFO L93 Difference]: Finished difference Result 118 states and 141 transitions. [2024-11-28 02:53:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:15,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 41 [2024-11-28 02:53:15,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:15,422 INFO L225 Difference]: With dead ends: 118 [2024-11-28 02:53:15,423 INFO L226 Difference]: Without dead ends: 115 [2024-11-28 02:53:15,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:15,424 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:15,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:15,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-28 02:53:15,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2024-11-28 02:53:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 90 states have internal predecessors, (103), 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) [2024-11-28 02:53:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2024-11-28 02:53:15,461 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 41 [2024-11-28 02:53:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:15,462 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2024-11-28 02:53:15,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2024-11-28 02:53:15,462 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2024-11-28 02:53:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 02:53:15,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:15,466 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-28 02:53:15,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:15,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:15,667 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:15,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -778124647, now seen corresponding path program 1 times [2024-11-28 02:53:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:15,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975939551] [2024-11-28 02:53:15,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:15,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924298880] [2024-11-28 02:53:15,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:15,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:15,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:15,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:15,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:53:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:15,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:53:15,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:53:15,952 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:16,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:16,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975939551] [2024-11-28 02:53:16,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:16,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924298880] [2024-11-28 02:53:16,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924298880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:16,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:16,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 02:53:16,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556378075] [2024-11-28 02:53:16,175 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:16,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:53:16,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:16,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:53:16,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:53:16,177 INFO L87 Difference]: Start difference. First operand 108 states and 133 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:53:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:16,437 INFO L93 Difference]: Finished difference Result 121 states and 150 transitions. [2024-11-28 02:53:16,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:53:16,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2024-11-28 02:53:16,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:16,440 INFO L225 Difference]: With dead ends: 121 [2024-11-28 02:53:16,440 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 02:53:16,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:53:16,441 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 53 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:16,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 214 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:53:16,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 02:53:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-28 02:53:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 76 states have (on average 1.381578947368421) internal successors, (105), 93 states have internal predecessors, (105), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:53:16,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2024-11-28 02:53:16,472 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 52 [2024-11-28 02:53:16,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:16,473 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2024-11-28 02:53:16,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:53:16,473 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2024-11-28 02:53:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 02:53:16,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:16,477 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-28 02:53:16,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:16,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:16,678 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:16,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1647939770, now seen corresponding path program 1 times [2024-11-28 02:53:16,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:16,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996747456] [2024-11-28 02:53:16,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:16,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:16,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392150839] [2024-11-28 02:53:16,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:16,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:16,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:16,701 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:16,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:53:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:16,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:53:16,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:17,037 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:53:17,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:17,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:17,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996747456] [2024-11-28 02:53:17,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:17,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392150839] [2024-11-28 02:53:17,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392150839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:17,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:17,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 02:53:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183361703] [2024-11-28 02:53:17,259 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:17,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:53:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:17,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:53:17,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:53:17,262 INFO L87 Difference]: Start difference. First operand 113 states and 139 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:53:17,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:17,535 INFO L93 Difference]: Finished difference Result 180 states and 233 transitions. [2024-11-28 02:53:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:53:17,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-11-28 02:53:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:17,538 INFO L225 Difference]: With dead ends: 180 [2024-11-28 02:53:17,539 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 02:53:17,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:53:17,540 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 83 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:17,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:53:17,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 02:53:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 167. [2024-11-28 02:53:17,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 121 states have (on average 1.3884297520661157) internal successors, (168), 138 states have internal predecessors, (168), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:53:17,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 220 transitions. [2024-11-28 02:53:17,566 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 220 transitions. Word has length 53 [2024-11-28 02:53:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:17,567 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 220 transitions. [2024-11-28 02:53:17,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:53:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 220 transitions. [2024-11-28 02:53:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 02:53:17,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:17,568 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-28 02:53:17,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:17,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:17,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:17,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash 351566611, now seen corresponding path program 1 times [2024-11-28 02:53:17,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:17,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766010367] [2024-11-28 02:53:17,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:17,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:53:17,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:17,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766010367] [2024-11-28 02:53:17,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766010367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:17,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:17,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:17,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706957510] [2024-11-28 02:53:17,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:17,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:53:17,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:17,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:53:17,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:53:17,933 INFO L87 Difference]: Start difference. First operand 167 states and 220 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:53:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:18,114 INFO L93 Difference]: Finished difference Result 176 states and 229 transitions. [2024-11-28 02:53:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:18,114 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2024-11-28 02:53:18,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:18,116 INFO L225 Difference]: With dead ends: 176 [2024-11-28 02:53:18,116 INFO L226 Difference]: Without dead ends: 162 [2024-11-28 02:53:18,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:18,117 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:18,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 133 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:18,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-28 02:53:18,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 137. [2024-11-28 02:53:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.443298969072165) internal successors, (140), 114 states have internal predecessors, (140), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 02:53:18,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 180 transitions. [2024-11-28 02:53:18,168 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 180 transitions. Word has length 57 [2024-11-28 02:53:18,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:18,168 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 180 transitions. [2024-11-28 02:53:18,169 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:53:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2024-11-28 02:53:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 02:53:18,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:18,172 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 02:53:18,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:53:18,173 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:18,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1069253660, now seen corresponding path program 1 times [2024-11-28 02:53:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:18,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091353868] [2024-11-28 02:53:18,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:18,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 02:53:18,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:18,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091353868] [2024-11-28 02:53:18,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091353868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:18,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79231052] [2024-11-28 02:53:18,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:18,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:18,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:18,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:18,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:53:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:18,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:53:18,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 02:53:18,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:18,601 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 02:53:18,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79231052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:53:18,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:53:18,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 02:53:18,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740065880] [2024-11-28 02:53:18,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:18,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:53:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:18,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:53:18,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:18,607 INFO L87 Difference]: Start difference. First operand 137 states and 180 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 02:53:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:18,862 INFO L93 Difference]: Finished difference Result 240 states and 312 transitions. [2024-11-28 02:53:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:53:18,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 61 [2024-11-28 02:53:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:18,866 INFO L225 Difference]: With dead ends: 240 [2024-11-28 02:53:18,866 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 02:53:18,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:18,867 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 145 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:18,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 182 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:53:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 02:53:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2024-11-28 02:53:18,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 140 states have (on average 1.4428571428571428) internal successors, (202), 157 states have internal predecessors, (202), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 02:53:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 262 transitions. [2024-11-28 02:53:18,906 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 262 transitions. Word has length 61 [2024-11-28 02:53:18,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:18,906 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 262 transitions. [2024-11-28 02:53:18,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 02:53:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 262 transitions. [2024-11-28 02:53:18,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:53:18,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:18,908 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-28 02:53:18,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:53:19,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:53:19,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:19,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:19,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1687245116, now seen corresponding path program 2 times [2024-11-28 02:53:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:19,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799385655] [2024-11-28 02:53:19,110 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:53:19,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:19,157 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:53:19,160 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:53:19,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058438326] [2024-11-28 02:53:19,163 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:53:19,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:19,168 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:19,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:53:19,237 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:53:19,237 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:53:19,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:53:19,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 02:53:19,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:19,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799385655] [2024-11-28 02:53:19,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:19,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058438326] [2024-11-28 02:53:19,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058438326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:19,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:19,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 02:53:19,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17551595] [2024-11-28 02:53:19,940 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:19,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:53:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:19,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:53:19,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:53:19,941 INFO L87 Difference]: Start difference. First operand 190 states and 262 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 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) [2024-11-28 02:53:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:20,794 INFO L93 Difference]: Finished difference Result 255 states and 348 transitions. [2024-11-28 02:53:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:53:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 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 75 [2024-11-28 02:53:20,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:20,798 INFO L225 Difference]: With dead ends: 255 [2024-11-28 02:53:20,798 INFO L226 Difference]: Without dead ends: 251 [2024-11-28 02:53:20,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:53:20,799 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 134 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:20,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 359 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:53:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-28 02:53:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 190. [2024-11-28 02:53:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 140 states have (on average 1.4285714285714286) internal successors, (200), 157 states have internal predecessors, (200), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 02:53:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 260 transitions. [2024-11-28 02:53:20,841 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 260 transitions. Word has length 75 [2024-11-28 02:53:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:20,842 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 260 transitions. [2024-11-28 02:53:20,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 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) [2024-11-28 02:53:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 260 transitions. [2024-11-28 02:53:20,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 02:53:20,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:20,844 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1] [2024-11-28 02:53:20,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:21,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:53:21,048 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:21,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash 795892966, now seen corresponding path program 1 times [2024-11-28 02:53:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:21,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389675468] [2024-11-28 02:53:21,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 02:53:21,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:21,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389675468] [2024-11-28 02:53:21,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389675468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:21,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:21,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:53:21,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704567154] [2024-11-28 02:53:21,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:21,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:21,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:21,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:21,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:21,168 INFO L87 Difference]: Start difference. First operand 190 states and 260 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:53:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:21,264 INFO L93 Difference]: Finished difference Result 190 states and 260 transitions. [2024-11-28 02:53:21,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2024-11-28 02:53:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:21,268 INFO L225 Difference]: With dead ends: 190 [2024-11-28 02:53:21,268 INFO L226 Difference]: Without dead ends: 189 [2024-11-28 02:53:21,269 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 [2024-11-28 02:53:21,270 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:21,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 112 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:21,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-28 02:53:21,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-28 02:53:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 140 states have (on average 1.4071428571428573) internal successors, (197), 156 states have internal predecessors, (197), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 02:53:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 257 transitions. [2024-11-28 02:53:21,329 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 257 transitions. Word has length 82 [2024-11-28 02:53:21,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:21,330 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 257 transitions. [2024-11-28 02:53:21,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:53:21,330 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 257 transitions. [2024-11-28 02:53:21,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 02:53:21,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:21,333 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1] [2024-11-28 02:53:21,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:53:21,333 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:21,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1097121721, now seen corresponding path program 1 times [2024-11-28 02:53:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:21,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049103301] [2024-11-28 02:53:21,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 02:53:21,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:21,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049103301] [2024-11-28 02:53:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049103301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:21,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:21,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:53:21,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947599638] [2024-11-28 02:53:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:21,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:53:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:21,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:53:21,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:21,637 INFO L87 Difference]: Start difference. First operand 189 states and 257 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-11-28 02:53:22,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:22,076 INFO L93 Difference]: Finished difference Result 344 states and 486 transitions. [2024-11-28 02:53:22,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:53:22,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 83 [2024-11-28 02:53:22,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:22,079 INFO L225 Difference]: With dead ends: 344 [2024-11-28 02:53:22,079 INFO L226 Difference]: Without dead ends: 343 [2024-11-28 02:53:22,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:53:22,080 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 97 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:22,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 202 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:53:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-28 02:53:22,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 285. [2024-11-28 02:53:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 224 states have (on average 1.4732142857142858) internal successors, (330), 240 states have internal predecessors, (330), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 02:53:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 414 transitions. [2024-11-28 02:53:22,125 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 414 transitions. Word has length 83 [2024-11-28 02:53:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:22,125 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 414 transitions. [2024-11-28 02:53:22,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-11-28 02:53:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 414 transitions. [2024-11-28 02:53:22,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 02:53:22,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:22,127 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:22,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:53:22,127 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:22,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash 348965128, now seen corresponding path program 1 times [2024-11-28 02:53:22,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:22,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508602149] [2024-11-28 02:53:22,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:22,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 02:53:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508602149] [2024-11-28 02:53:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508602149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:22,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419374309] [2024-11-28 02:53:22,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:22,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:22,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:22,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:53:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:22,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:53:22,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 02:53:22,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:22,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419374309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:22,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:22,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 02:53:22,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977763390] [2024-11-28 02:53:22,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:22,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:22,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:22,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:22,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:53:22,788 INFO L87 Difference]: Start difference. First operand 285 states and 414 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:53:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:23,083 INFO L93 Difference]: Finished difference Result 341 states and 482 transitions. [2024-11-28 02:53:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-11-28 02:53:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:23,086 INFO L225 Difference]: With dead ends: 341 [2024-11-28 02:53:23,086 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 02:53:23,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:53:23,089 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 49 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:23,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 137 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:53:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 02:53:23,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2024-11-28 02:53:23,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 233 states have (on average 1.4549356223175967) internal successors, (339), 249 states have internal predecessors, (339), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 02:53:23,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 423 transitions. [2024-11-28 02:53:23,176 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 423 transitions. Word has length 84 [2024-11-28 02:53:23,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:23,177 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 423 transitions. [2024-11-28 02:53:23,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:53:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 423 transitions. [2024-11-28 02:53:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 02:53:23,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:23,178 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:23,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:53:23,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:23,379 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:23,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2066982807, now seen corresponding path program 1 times [2024-11-28 02:53:23,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:23,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156026309] [2024-11-28 02:53:23,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 02:53:23,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:23,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156026309] [2024-11-28 02:53:23,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156026309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:23,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72844255] [2024-11-28 02:53:23,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:23,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:23,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:23,645 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:23,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:53:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:23,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:53:23,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 02:53:23,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:23,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72844255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:23,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:23,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 02:53:23,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863794373] [2024-11-28 02:53:23,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:23,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:53:23,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:23,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:53:23,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:53:23,888 INFO L87 Difference]: Start difference. First operand 294 states and 423 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:53:24,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:24,065 INFO L93 Difference]: Finished difference Result 301 states and 429 transitions. [2024-11-28 02:53:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:53:24,066 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-28 02:53:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:24,068 INFO L225 Difference]: With dead ends: 301 [2024-11-28 02:53:24,069 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 02:53:24,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:53:24,071 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:24,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 91 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 02:53:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2024-11-28 02:53:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 236 states have (on average 1.4406779661016949) internal successors, (340), 252 states have internal predecessors, (340), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 02:53:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2024-11-28 02:53:24,124 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 85 [2024-11-28 02:53:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:24,125 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2024-11-28 02:53:24,125 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:53:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2024-11-28 02:53:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:53:24,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:24,126 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:24,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:24,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:53:24,327 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:24,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash 348042500, now seen corresponding path program 1 times [2024-11-28 02:53:24,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:24,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261797583] [2024-11-28 02:53:24,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:24,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:24,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373587915] [2024-11-28 02:53:24,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:24,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:24,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:24,375 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:24,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:53:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:24,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:53:24,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 02:53:25,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:25,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:25,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261797583] [2024-11-28 02:53:25,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:25,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373587915] [2024-11-28 02:53:25,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373587915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:25,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:25,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:53:25,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739024827] [2024-11-28 02:53:25,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:25,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:53:25,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:25,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:53:25,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:53:25,961 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:53:26,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:26,831 INFO L93 Difference]: Finished difference Result 370 states and 523 transitions. [2024-11-28 02:53:26,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:53:26,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 86 [2024-11-28 02:53:26,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:26,835 INFO L225 Difference]: With dead ends: 370 [2024-11-28 02:53:26,835 INFO L226 Difference]: Without dead ends: 369 [2024-11-28 02:53:26,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:53:26,836 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 121 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:26,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 247 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:53:26,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-28 02:53:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 343. [2024-11-28 02:53:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 276 states have (on average 1.4130434782608696) internal successors, (390), 292 states have internal predecessors, (390), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:53:26,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 486 transitions. [2024-11-28 02:53:26,887 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 486 transitions. Word has length 86 [2024-11-28 02:53:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:26,887 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 486 transitions. [2024-11-28 02:53:26,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:53:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 486 transitions. [2024-11-28 02:53:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:53:26,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:26,889 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:26,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:53:27,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 02:53:27,092 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:27,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:27,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2095584309, now seen corresponding path program 1 times [2024-11-28 02:53:27,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:27,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725612269] [2024-11-28 02:53:27,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:27,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:27,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030099294] [2024-11-28 02:53:27,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:27,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:27,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:27,136 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:27,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:53:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:27,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:53:27,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 02:53:27,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:28,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:28,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725612269] [2024-11-28 02:53:28,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:28,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030099294] [2024-11-28 02:53:28,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030099294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:28,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:28,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:53:28,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392827587] [2024-11-28 02:53:28,492 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:28,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:53:28,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:28,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:53:28,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:53:28,494 INFO L87 Difference]: Start difference. First operand 343 states and 486 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:53:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:29,212 INFO L93 Difference]: Finished difference Result 403 states and 570 transitions. [2024-11-28 02:53:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:53:29,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 87 [2024-11-28 02:53:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:29,216 INFO L225 Difference]: With dead ends: 403 [2024-11-28 02:53:29,216 INFO L226 Difference]: Without dead ends: 402 [2024-11-28 02:53:29,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:53:29,217 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 116 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:29,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 174 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:53:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-28 02:53:29,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 389. [2024-11-28 02:53:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 316 states have (on average 1.3860759493670887) internal successors, (438), 332 states have internal predecessors, (438), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:53:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 546 transitions. [2024-11-28 02:53:29,303 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 546 transitions. Word has length 87 [2024-11-28 02:53:29,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:29,303 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 546 transitions. [2024-11-28 02:53:29,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:53:29,304 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 546 transitions. [2024-11-28 02:53:29,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 02:53:29,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:29,306 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-28 02:53:29,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:53:29,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 02:53:29,506 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:29,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:29,507 INFO L85 PathProgramCache]: Analyzing trace with hash -538604058, now seen corresponding path program 1 times [2024-11-28 02:53:29,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:29,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908731893] [2024-11-28 02:53:29,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:29,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 02:53:29,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:29,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908731893] [2024-11-28 02:53:29,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908731893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:29,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:29,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:53:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851393135] [2024-11-28 02:53:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:29,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:29,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:29,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:29,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:29,628 INFO L87 Difference]: Start difference. First operand 389 states and 546 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:53:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:29,904 INFO L93 Difference]: Finished difference Result 389 states and 546 transitions. [2024-11-28 02:53:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:29,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 88 [2024-11-28 02:53:29,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:29,908 INFO L225 Difference]: With dead ends: 389 [2024-11-28 02:53:29,908 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 02:53:29,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:53:29,909 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 68 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:29,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 111 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:53:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 02:53:29,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 379. [2024-11-28 02:53:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 307 states have (on average 1.3517915309446253) internal successors, (415), 322 states have internal predecessors, (415), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:53:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 523 transitions. [2024-11-28 02:53:29,965 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 523 transitions. Word has length 88 [2024-11-28 02:53:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:29,965 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 523 transitions. [2024-11-28 02:53:29,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:53:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 523 transitions. [2024-11-28 02:53:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:53:29,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:29,967 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-28 02:53:29,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:53:29,967 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:29,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:29,968 INFO L85 PathProgramCache]: Analyzing trace with hash 483143469, now seen corresponding path program 1 times [2024-11-28 02:53:29,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:29,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966021304] [2024-11-28 02:53:29,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:29,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:53:29,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457613176] [2024-11-28 02:53:29,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:29,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:29,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:29,997 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:29,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:53:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:30,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 02:53:30,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 02:53:31,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:34,543 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 02:53:34,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:34,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966021304] [2024-11-28 02:53:34,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:34,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457613176] [2024-11-28 02:53:34,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457613176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:53:34,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:53:34,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-11-28 02:53:34,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304353395] [2024-11-28 02:53:34,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:34,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 02:53:34,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:34,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 02:53:34,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:53:34,547 INFO L87 Difference]: Start difference. First operand 379 states and 523 transitions. Second operand has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-28 02:53:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:42,250 INFO L93 Difference]: Finished difference Result 531 states and 731 transitions. [2024-11-28 02:53:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 02:53:42,251 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 89 [2024-11-28 02:53:42,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:42,254 INFO L225 Difference]: With dead ends: 531 [2024-11-28 02:53:42,254 INFO L226 Difference]: Without dead ends: 417 [2024-11-28 02:53:42,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 02:53:42,258 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 319 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:42,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 267 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 02:53:42,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-28 02:53:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 375. [2024-11-28 02:53:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 307 states have (on average 1.3485342019543973) internal successors, (414), 322 states have internal predecessors, (414), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 02:53:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 514 transitions. [2024-11-28 02:53:42,341 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 514 transitions. Word has length 89 [2024-11-28 02:53:42,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:42,341 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 514 transitions. [2024-11-28 02:53:42,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-28 02:53:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 514 transitions. [2024-11-28 02:53:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 02:53:42,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:42,343 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:42,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:42,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:42,547 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:53:42,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:42,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2067183282, now seen corresponding path program 3 times [2024-11-28 02:53:42,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:42,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994657314] [2024-11-28 02:53:42,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:53:42,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:42,572 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 02:53:42,572 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:53:42,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523491643] [2024-11-28 02:53:42,573 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:53:42,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:42,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:42,576 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:42,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:53:42,630 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 02:53:42,630 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:53:42,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:53:42,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 26 proven. 32 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-28 02:53:44,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:45,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:45,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994657314] [2024-11-28 02:53:45,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:53:45,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523491643] [2024-11-28 02:53:45,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523491643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:45,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:45,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:53:45,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302864881] [2024-11-28 02:53:45,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:45,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:53:45,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:45,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:53:45,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2024-11-28 02:53:45,130 INFO L87 Difference]: Start difference. First operand 375 states and 514 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:53:47,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:53:56,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:53:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:59,831 INFO L93 Difference]: Finished difference Result 404 states and 549 transitions. [2024-11-28 02:53:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:53:59,831 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 97 [2024-11-28 02:53:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:59,833 INFO L225 Difference]: With dead ends: 404 [2024-11-28 02:53:59,833 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 02:53:59,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=130, Invalid=415, Unknown=7, NotChecked=0, Total=552 [2024-11-28 02:53:59,835 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 216 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:59,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 214 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 02:53:59,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 02:53:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 370. [2024-11-28 02:53:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 305 states have (on average 1.3114754098360655) internal successors, (400), 317 states have internal predecessors, (400), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 02:53:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 500 transitions. [2024-11-28 02:53:59,918 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 500 transitions. Word has length 97 [2024-11-28 02:53:59,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:59,918 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 500 transitions. [2024-11-28 02:53:59,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:53:59,919 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 500 transitions. [2024-11-28 02:53:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 02:53:59,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:59,922 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 02:53:59,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 02:54:00,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:00,122 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:00,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:00,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1222520212, now seen corresponding path program 1 times [2024-11-28 02:54:00,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:00,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156626825] [2024-11-28 02:54:00,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:00,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:00,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836596109] [2024-11-28 02:54:00,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:00,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:00,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:00,151 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:00,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:54:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:00,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:54:00,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 02:54:00,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:01,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156626825] [2024-11-28 02:54:01,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836596109] [2024-11-28 02:54:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836596109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:01,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:01,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 02:54:01,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295245427] [2024-11-28 02:54:01,236 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:01,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:54:01,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:01,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:54:01,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:54:01,238 INFO L87 Difference]: Start difference. First operand 370 states and 500 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 02:54:01,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:01,651 INFO L93 Difference]: Finished difference Result 375 states and 507 transitions. [2024-11-28 02:54:01,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:54:01,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 103 [2024-11-28 02:54:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:01,654 INFO L225 Difference]: With dead ends: 375 [2024-11-28 02:54:01,654 INFO L226 Difference]: Without dead ends: 374 [2024-11-28 02:54:01,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:54:01,656 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 29 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:01,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 193 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-28 02:54:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 371. [2024-11-28 02:54:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 306 states have (on average 1.3104575163398693) internal successors, (401), 318 states have internal predecessors, (401), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 02:54:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 501 transitions. [2024-11-28 02:54:01,723 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 501 transitions. Word has length 103 [2024-11-28 02:54:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:01,724 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 501 transitions. [2024-11-28 02:54:01,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 02:54:01,724 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 501 transitions. [2024-11-28 02:54:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 02:54:01,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:01,725 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 02:54:01,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:01,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:01,926 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:01,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:01,926 INFO L85 PathProgramCache]: Analyzing trace with hash 756579215, now seen corresponding path program 1 times [2024-11-28 02:54:01,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:01,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980251674] [2024-11-28 02:54:01,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88872351] [2024-11-28 02:54:01,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:01,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:01,963 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:01,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:54:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:02,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:54:02,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:54:02,578 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:03,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:03,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980251674] [2024-11-28 02:54:03,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:03,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88872351] [2024-11-28 02:54:03,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88872351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:03,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:03,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:54:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399529778] [2024-11-28 02:54:03,224 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:03,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:54:03,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:03,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:54:03,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:54:03,226 INFO L87 Difference]: Start difference. First operand 371 states and 501 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:54:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:03,944 INFO L93 Difference]: Finished difference Result 626 states and 863 transitions. [2024-11-28 02:54:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:54:03,945 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 104 [2024-11-28 02:54:03,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:03,947 INFO L225 Difference]: With dead ends: 626 [2024-11-28 02:54:03,947 INFO L226 Difference]: Without dead ends: 390 [2024-11-28 02:54:03,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:54:03,949 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:03,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 337 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:54:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-28 02:54:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 384. [2024-11-28 02:54:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 315 states have (on average 1.326984126984127) internal successors, (418), 327 states have internal predecessors, (418), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:54:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 526 transitions. [2024-11-28 02:54:04,014 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 526 transitions. Word has length 104 [2024-11-28 02:54:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:04,015 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 526 transitions. [2024-11-28 02:54:04,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:54:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 526 transitions. [2024-11-28 02:54:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 02:54:04,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:04,016 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 02:54:04,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:54:04,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:04,217 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:04,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1979119310, now seen corresponding path program 1 times [2024-11-28 02:54:04,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:04,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955165316] [2024-11-28 02:54:04,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-28 02:54:04,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:04,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955165316] [2024-11-28 02:54:04,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955165316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:04,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:04,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:04,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499350337] [2024-11-28 02:54:04,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:04,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:04,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:04,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:04,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:04,320 INFO L87 Difference]: Start difference. First operand 384 states and 526 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-28 02:54:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:04,520 INFO L93 Difference]: Finished difference Result 384 states and 526 transitions. [2024-11-28 02:54:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:54:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 105 [2024-11-28 02:54:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:04,523 INFO L225 Difference]: With dead ends: 384 [2024-11-28 02:54:04,523 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 02:54:04,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:04,524 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 40 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:04,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 02:54:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-11-28 02:54:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 315 states have (on average 1.3238095238095238) internal successors, (417), 326 states have internal predecessors, (417), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:54:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 525 transitions. [2024-11-28 02:54:04,591 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 525 transitions. Word has length 105 [2024-11-28 02:54:04,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:04,592 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 525 transitions. [2024-11-28 02:54:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-28 02:54:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 525 transitions. [2024-11-28 02:54:04,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 02:54:04,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:04,593 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:04,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:54:04,594 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:04,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash 795608210, now seen corresponding path program 1 times [2024-11-28 02:54:04,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986711894] [2024-11-28 02:54:04,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 02:54:04,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986711894] [2024-11-28 02:54:04,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986711894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711291628] [2024-11-28 02:54:04,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:04,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:04,717 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:04,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 02:54:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:04,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:54:04,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 02:54:04,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 02:54:05,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711291628] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:05,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:54:05,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 02:54:05,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359651348] [2024-11-28 02:54:05,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:05,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:54:05,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:05,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:54:05,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:05,013 INFO L87 Difference]: Start difference. First operand 383 states and 525 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 02:54:05,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:05,415 INFO L93 Difference]: Finished difference Result 681 states and 916 transitions. [2024-11-28 02:54:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:54:05,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2024-11-28 02:54:05,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:05,418 INFO L225 Difference]: With dead ends: 681 [2024-11-28 02:54:05,419 INFO L226 Difference]: Without dead ends: 679 [2024-11-28 02:54:05,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:05,424 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 341 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:05,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 249 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:05,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-28 02:54:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 451. [2024-11-28 02:54:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 369 states have (on average 1.2953929539295392) internal successors, (478), 380 states have internal predecessors, (478), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 02:54:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 614 transitions. [2024-11-28 02:54:05,529 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 614 transitions. Word has length 107 [2024-11-28 02:54:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:05,531 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 614 transitions. [2024-11-28 02:54:05,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 02:54:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 614 transitions. [2024-11-28 02:54:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 02:54:05,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:05,533 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 02:54:05,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 02:54:05,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:05,733 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:05,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1223156593, now seen corresponding path program 1 times [2024-11-28 02:54:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:05,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237280893] [2024-11-28 02:54:05,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:05,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839588333] [2024-11-28 02:54:05,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:05,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:05,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:05,757 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:05,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 02:54:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:05,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 02:54:05,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:54:06,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 02:54:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:07,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237280893] [2024-11-28 02:54:07,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:07,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839588333] [2024-11-28 02:54:07,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839588333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:07,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:54:07,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-11-28 02:54:07,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698593255] [2024-11-28 02:54:07,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:07,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 02:54:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:07,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 02:54:07,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:54:07,552 INFO L87 Difference]: Start difference. First operand 451 states and 614 transitions. Second operand has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 02:54:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:09,348 INFO L93 Difference]: Finished difference Result 495 states and 669 transitions. [2024-11-28 02:54:09,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:54:09,349 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 106 [2024-11-28 02:54:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:09,351 INFO L225 Difference]: With dead ends: 495 [2024-11-28 02:54:09,351 INFO L226 Difference]: Without dead ends: 488 [2024-11-28 02:54:09,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 02:54:09,353 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:09,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 311 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:54:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-28 02:54:09,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 448. [2024-11-28 02:54:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 366 states have (on average 1.284153005464481) internal successors, (470), 377 states have internal predecessors, (470), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 02:54:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 606 transitions. [2024-11-28 02:54:09,454 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 606 transitions. Word has length 106 [2024-11-28 02:54:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:09,454 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 606 transitions. [2024-11-28 02:54:09,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 02:54:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 606 transitions. [2024-11-28 02:54:09,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 02:54:09,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:09,456 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2024-11-28 02:54:09,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 02:54:09,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 02:54:09,661 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:09,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1302134726, now seen corresponding path program 2 times [2024-11-28 02:54:09,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:09,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145446268] [2024-11-28 02:54:09,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:54:09,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:09,699 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:54:09,700 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:54:09,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666993380] [2024-11-28 02:54:09,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:54:09,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:09,704 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:09,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 02:54:09,780 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:54:09,780 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:54:09,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:54:09,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 02:54:10,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:10,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:10,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145446268] [2024-11-28 02:54:10,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:10,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666993380] [2024-11-28 02:54:10,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666993380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:10,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:10,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 02:54:10,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649437213] [2024-11-28 02:54:10,986 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:10,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:54:10,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:10,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:54:10,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:54:10,987 INFO L87 Difference]: Start difference. First operand 448 states and 606 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) [2024-11-28 02:54:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:11,382 INFO L93 Difference]: Finished difference Result 507 states and 693 transitions. [2024-11-28 02:54:11,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:54:11,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 108 [2024-11-28 02:54:11,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:11,387 INFO L225 Difference]: With dead ends: 507 [2024-11-28 02:54:11,387 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 02:54:11,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:54:11,388 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 71 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:11,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 231 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 02:54:11,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 446. [2024-11-28 02:54:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 366 states have (on average 1.215846994535519) internal successors, (445), 375 states have internal predecessors, (445), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 02:54:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 581 transitions. [2024-11-28 02:54:11,511 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 581 transitions. Word has length 108 [2024-11-28 02:54:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:11,513 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 581 transitions. [2024-11-28 02:54:11,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) [2024-11-28 02:54:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 581 transitions. [2024-11-28 02:54:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 02:54:11,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:11,515 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2024-11-28 02:54:11,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 02:54:11,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 02:54:11,716 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:11,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1711470763, now seen corresponding path program 2 times [2024-11-28 02:54:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:11,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239822841] [2024-11-28 02:54:11,720 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:54:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:11,758 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:54:11,758 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:54:11,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61893067] [2024-11-28 02:54:11,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:54:11,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:11,763 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:11,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 02:54:11,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:54:11,849 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:54:11,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 02:54:11,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-28 02:54:12,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:13,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:13,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239822841] [2024-11-28 02:54:13,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:13,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61893067] [2024-11-28 02:54:13,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61893067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:13,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:13,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 02:54:13,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176530445] [2024-11-28 02:54:13,210 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:13,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:54:13,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:13,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:54:13,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:54:13,211 INFO L87 Difference]: Start difference. First operand 446 states and 581 transitions. Second operand has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 02:54:14,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:14,076 INFO L93 Difference]: Finished difference Result 486 states and 632 transitions. [2024-11-28 02:54:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:54:14,076 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 109 [2024-11-28 02:54:14,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:14,079 INFO L225 Difference]: With dead ends: 486 [2024-11-28 02:54:14,079 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 02:54:14,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:54:14,080 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 114 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:14,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 258 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:54:14,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 02:54:14,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 470. [2024-11-28 02:54:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 386 states have (on average 1.2098445595854923) internal successors, (467), 395 states have internal predecessors, (467), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 02:54:14,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 611 transitions. [2024-11-28 02:54:14,173 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 611 transitions. Word has length 109 [2024-11-28 02:54:14,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:14,174 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 611 transitions. [2024-11-28 02:54:14,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 02:54:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 611 transitions. [2024-11-28 02:54:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 02:54:14,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:14,176 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:14,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:14,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 02:54:14,377 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:14,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:14,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1706036616, now seen corresponding path program 1 times [2024-11-28 02:54:14,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:14,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964097483] [2024-11-28 02:54:14,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:14,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-28 02:54:14,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:14,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964097483] [2024-11-28 02:54:14,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964097483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:14,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243482594] [2024-11-28 02:54:14,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:14,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:14,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:14,748 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:14,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 02:54:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:14,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:54:14,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 02:54:14,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 02:54:15,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243482594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:15,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:54:15,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-28 02:54:15,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969438879] [2024-11-28 02:54:15,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:15,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:54:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:15,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:54:15,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:54:15,138 INFO L87 Difference]: Start difference. First operand 470 states and 611 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-28 02:54:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:16,395 INFO L93 Difference]: Finished difference Result 826 states and 1096 transitions. [2024-11-28 02:54:16,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:54:16,396 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 109 [2024-11-28 02:54:16,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:16,400 INFO L225 Difference]: With dead ends: 826 [2024-11-28 02:54:16,400 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 02:54:16,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:54:16,401 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 162 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:16,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 468 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:54:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 02:54:16,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 466. [2024-11-28 02:54:16,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 382 states have (on average 1.2382198952879582) internal successors, (473), 391 states have internal predecessors, (473), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 02:54:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 617 transitions. [2024-11-28 02:54:16,500 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 617 transitions. Word has length 109 [2024-11-28 02:54:16,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:16,500 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 617 transitions. [2024-11-28 02:54:16,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-28 02:54:16,500 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 617 transitions. [2024-11-28 02:54:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:54:16,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:16,502 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 02:54:16,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 02:54:16,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 02:54:16,703 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:54:16,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:16,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2130149537, now seen corresponding path program 3 times [2024-11-28 02:54:16,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:16,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682866917] [2024-11-28 02:54:16,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:54:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:16,771 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 02:54:16,772 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:54:16,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915077861] [2024-11-28 02:54:16,776 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:54:16,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:16,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:16,779 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:16,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 02:54:16,850 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 02:54:16,850 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:54:16,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 02:54:16,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-28 02:54:49,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:02,925 WARN L286 SmtUtils]: Spent 12.16s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:55:02,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:02,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682866917] [2024-11-28 02:55:02,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:02,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915077861] [2024-11-28 02:55:02,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915077861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:02,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:02,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:55:02,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348791595] [2024-11-28 02:55:02,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:02,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:55:02,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:02,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:55:02,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:55:02,928 INFO L87 Difference]: Start difference. First operand 466 states and 617 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 02:55:07,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:11,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:15,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:19,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:23,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:35,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:39,349 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 [] [2024-11-28 02:55:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:40,023 INFO L93 Difference]: Finished difference Result 552 states and 730 transitions. [2024-11-28 02:55:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:55:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 131 [2024-11-28 02:55:40,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:40,027 INFO L225 Difference]: With dead ends: 552 [2024-11-28 02:55:40,028 INFO L226 Difference]: Without dead ends: 551 [2024-11-28 02:55:40,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=137, Invalid=368, Unknown=1, NotChecked=0, Total=506 [2024-11-28 02:55:40,030 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 49 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:40,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 347 Invalid, 7 Unknown, 0 Unchecked, 28.8s Time] [2024-11-28 02:55:40,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-28 02:55:40,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 495. [2024-11-28 02:55:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 409 states have (on average 1.2396088019559903) internal successors, (507), 418 states have internal predecessors, (507), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 02:55:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 655 transitions. [2024-11-28 02:55:40,130 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 655 transitions. Word has length 131 [2024-11-28 02:55:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:40,131 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 655 transitions. [2024-11-28 02:55:40,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 02:55:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 655 transitions. [2024-11-28 02:55:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:55:40,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:40,133 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 02:55:40,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 02:55:40,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:40,338 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:55:40,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1625697729, now seen corresponding path program 2 times [2024-11-28 02:55:40,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:40,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780165305] [2024-11-28 02:55:40,340 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:40,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:40,377 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:55:40,381 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:55:40,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602980659] [2024-11-28 02:55:40,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:40,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:40,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:40,388 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:40,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 02:55:40,481 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:55:40,482 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:40,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 02:55:40,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-28 02:55:41,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-28 02:55:44,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780165305] [2024-11-28 02:55:44,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602980659] [2024-11-28 02:55:44,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602980659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:44,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:55:44,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-11-28 02:55:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440344605] [2024-11-28 02:55:44,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:44,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 02:55:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:44,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 02:55:44,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:55:44,399 INFO L87 Difference]: Start difference. First operand 495 states and 655 transitions. Second operand has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2024-11-28 02:55:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:51,130 INFO L93 Difference]: Finished difference Result 584 states and 765 transitions. [2024-11-28 02:55:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 02:55:51,131 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) Word has length 133 [2024-11-28 02:55:51,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:51,134 INFO L225 Difference]: With dead ends: 584 [2024-11-28 02:55:51,134 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 02:55:51,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=569, Invalid=1981, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 02:55:51,136 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 411 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:51,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 539 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 02:55:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 02:55:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 557. [2024-11-28 02:55:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 465 states have (on average 1.2236559139784946) internal successors, (569), 474 states have internal predecessors, (569), 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) [2024-11-28 02:55:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 729 transitions. [2024-11-28 02:55:51,293 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 729 transitions. Word has length 133 [2024-11-28 02:55:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:51,294 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 729 transitions. [2024-11-28 02:55:51,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2024-11-28 02:55:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 729 transitions. [2024-11-28 02:55:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:55:51,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:51,296 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:51,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:51,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:51,501 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:55:51,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1742020636, now seen corresponding path program 1 times [2024-11-28 02:55:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:51,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000986820] [2024-11-28 02:55:51,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 02:55:51,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000986820] [2024-11-28 02:55:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000986820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368067934] [2024-11-28 02:55:51,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:51,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:51,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:51,949 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:51,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 02:55:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:52,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:55:52,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 02:55:52,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:54,851 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 02:55:54,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368067934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:54,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:54,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-28 02:55:54,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100872189] [2024-11-28 02:55:54,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:54,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:55:54,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:54,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:55:54,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:55:54,854 INFO L87 Difference]: Start difference. First operand 557 states and 729 transitions. Second operand has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-28 02:55:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:56,645 INFO L93 Difference]: Finished difference Result 792 states and 1031 transitions. [2024-11-28 02:55:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:55:56,646 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 133 [2024-11-28 02:55:56,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:56,649 INFO L225 Difference]: With dead ends: 792 [2024-11-28 02:55:56,650 INFO L226 Difference]: Without dead ends: 791 [2024-11-28 02:55:56,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 02:55:56,651 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 248 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:56,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 658 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:55:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-28 02:55:56,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 705. [2024-11-28 02:55:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 597 states have (on average 1.2177554438860971) internal successors, (727), 606 states have internal predecessors, (727), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-28 02:55:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 919 transitions. [2024-11-28 02:55:56,863 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 919 transitions. Word has length 133 [2024-11-28 02:55:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:56,864 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 919 transitions. [2024-11-28 02:55:56,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-28 02:55:56,865 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 919 transitions. [2024-11-28 02:55:56,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:55:56,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:56,866 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:56,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 02:55:57,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 02:55:57,068 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:55:57,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash 955416710, now seen corresponding path program 4 times [2024-11-28 02:55:57,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:57,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323912164] [2024-11-28 02:55:57,068 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:55:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:57,109 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:55:57,109 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:55:57,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680327457] [2024-11-28 02:55:57,113 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:55:57,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:57,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:57,115 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:57,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 02:55:57,207 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:55:57,207 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:57,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 02:55:57,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 02:55:58,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323912164] [2024-11-28 02:55:58,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680327457] [2024-11-28 02:55:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680327457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:58,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 02:55:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231260083] [2024-11-28 02:55:58,965 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:58,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:55:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:58,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:55:58,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:55:58,967 INFO L87 Difference]: Start difference. First operand 705 states and 919 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-28 02:56:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:00,055 INFO L93 Difference]: Finished difference Result 729 states and 949 transitions. [2024-11-28 02:56:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 02:56:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 135 [2024-11-28 02:56:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:00,058 INFO L225 Difference]: With dead ends: 729 [2024-11-28 02:56:00,058 INFO L226 Difference]: Without dead ends: 728 [2024-11-28 02:56:00,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:56:00,058 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 93 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:00,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 257 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:56:00,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-28 02:56:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 719. [2024-11-28 02:56:00,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 609 states have (on average 1.2118226600985222) internal successors, (738), 618 states have internal predecessors, (738), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 02:56:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 934 transitions. [2024-11-28 02:56:00,185 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 934 transitions. Word has length 135 [2024-11-28 02:56:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:00,185 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 934 transitions. [2024-11-28 02:56:00,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-28 02:56:00,186 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 934 transitions. [2024-11-28 02:56:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 02:56:00,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:00,187 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-11-28 02:56:00,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:00,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 02:56:00,392 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:56:00,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash -967540440, now seen corresponding path program 3 times [2024-11-28 02:56:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:00,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466541922] [2024-11-28 02:56:00,392 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:56:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:00,440 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 02:56:00,441 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:56:00,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367741265] [2024-11-28 02:56:00,442 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:56:00,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:00,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:00,445 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:00,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 02:56:00,566 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 02:56:00,566 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:56:00,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 02:56:00,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:01,155 WARN L286 SmtUtils]: Spent 14.44s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:58:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 92 proven. 47 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-11-28 02:58:14,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-28 02:58:34,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466541922] [2024-11-28 02:58:34,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:58:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367741265] [2024-11-28 02:58:34,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367741265] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:34,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:34,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 29 [2024-11-28 02:58:34,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697097079] [2024-11-28 02:58:34,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:34,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:58:34,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:34,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:58:34,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=718, Unknown=2, NotChecked=0, Total=870 [2024-11-28 02:58:34,027 INFO L87 Difference]: Start difference. First operand 719 states and 934 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:58:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:41,878 INFO L93 Difference]: Finished difference Result 731 states and 952 transitions. [2024-11-28 02:58:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:58:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 137 [2024-11-28 02:58:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:41,883 INFO L225 Difference]: With dead ends: 731 [2024-11-28 02:58:41,883 INFO L226 Difference]: Without dead ends: 730 [2024-11-28 02:58:41,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 47.1s TimeCoverageRelationStatistics Valid=249, Invalid=1081, Unknown=2, NotChecked=0, Total=1332 [2024-11-28 02:58:41,885 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 104 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:41,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 137 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 02:58:41,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-28 02:58:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 654. [2024-11-28 02:58:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 549 states have (on average 1.1912568306010929) internal successors, (654), 557 states have internal predecessors, (654), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 02:58:42,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 842 transitions. [2024-11-28 02:58:42,078 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 842 transitions. Word has length 137 [2024-11-28 02:58:42,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:42,078 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 842 transitions. [2024-11-28 02:58:42,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:58:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 842 transitions. [2024-11-28 02:58:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 02:58:42,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:42,080 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 02:58:42,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 02:58:42,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 02:58:42,282 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:58:42,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1614917395, now seen corresponding path program 1 times [2024-11-28 02:58:42,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:42,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320830618] [2024-11-28 02:58:42,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:42,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:58:42,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245192459] [2024-11-28 02:58:42,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:42,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:42,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:42,335 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:42,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 02:58:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:42,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 02:58:42,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-28 02:58:43,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:43,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:43,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320830618] [2024-11-28 02:58:43,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:58:43,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245192459] [2024-11-28 02:58:43,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245192459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:43,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:43,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 02:58:43,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723833867] [2024-11-28 02:58:43,438 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:58:43,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:58:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:43,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:58:43,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:58:43,440 INFO L87 Difference]: Start difference. First operand 654 states and 842 transitions. Second operand has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 02:58:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:44,459 INFO L93 Difference]: Finished difference Result 767 states and 983 transitions. [2024-11-28 02:58:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:58:44,459 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) Word has length 147 [2024-11-28 02:58:44,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:44,462 INFO L225 Difference]: With dead ends: 767 [2024-11-28 02:58:44,463 INFO L226 Difference]: Without dead ends: 558 [2024-11-28 02:58:44,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2024-11-28 02:58:44,464 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:44,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 382 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:58:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-28 02:58:44,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 555. [2024-11-28 02:58:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 460 states have (on average 1.184782608695652) internal successors, (545), 468 states have internal predecessors, (545), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 02:58:44,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 713 transitions. [2024-11-28 02:58:44,614 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 713 transitions. Word has length 147 [2024-11-28 02:58:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:44,614 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 713 transitions. [2024-11-28 02:58:44,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 02:58:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 713 transitions. [2024-11-28 02:58:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 02:58:44,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:44,616 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 02:58:44,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 02:58:44,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 02:58:44,820 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:58:44,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:44,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1477168430, now seen corresponding path program 1 times [2024-11-28 02:58:44,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:44,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020563318] [2024-11-28 02:58:44,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:44,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:58:44,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907311155] [2024-11-28 02:58:44,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:44,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:44,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:44,851 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:44,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 02:58:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:44,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 02:58:44,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 42 proven. 60 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-28 02:58:46,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:48,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:48,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020563318] [2024-11-28 02:58:48,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:58:48,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907311155] [2024-11-28 02:58:48,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907311155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:48,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:48,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-28 02:58:48,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115657529] [2024-11-28 02:58:48,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:58:48,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:58:48,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:48,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:58:48,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 02:58:48,973 INFO L87 Difference]: Start difference. First operand 555 states and 713 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-28 02:58:51,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:51,112 INFO L93 Difference]: Finished difference Result 561 states and 719 transitions. [2024-11-28 02:58:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:58:51,113 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 148 [2024-11-28 02:58:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:51,115 INFO L225 Difference]: With dead ends: 561 [2024-11-28 02:58:51,116 INFO L226 Difference]: Without dead ends: 560 [2024-11-28 02:58:51,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=445, Invalid=1811, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 02:58:51,117 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 124 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:51,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 432 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:58:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-28 02:58:51,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2024-11-28 02:58:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 461 states have (on average 1.1843817787418656) internal successors, (546), 469 states have internal predecessors, (546), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 02:58:51,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 714 transitions. [2024-11-28 02:58:51,277 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 714 transitions. Word has length 148 [2024-11-28 02:58:51,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:51,277 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 714 transitions. [2024-11-28 02:58:51,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-28 02:58:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 714 transitions. [2024-11-28 02:58:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 02:58:51,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:51,278 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 02:58:51,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 02:58:51,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 02:58:51,479 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 02:58:51,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:51,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2075309744, now seen corresponding path program 1 times [2024-11-28 02:58:51,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:51,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119667092] [2024-11-28 02:58:51,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:51,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:58:51,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403328582] [2024-11-28 02:58:51,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:51,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:51,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:51,512 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:51,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 02:58:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:51,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 02:58:51,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-28 02:58:53,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:01,290 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:59:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-28 02:59:57,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:57,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119667092] [2024-11-28 02:59:57,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:59:57,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403328582] [2024-11-28 02:59:57,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403328582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:57,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:59:57,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-11-28 02:59:57,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846889656] [2024-11-28 02:59:57,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:57,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 02:59:57,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:57,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 02:59:57,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2024-11-28 02:59:57,144 INFO L87 Difference]: Start difference. First operand 556 states and 714 transitions. Second operand has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:01:03,792 WARN L286 SmtUtils]: Spent 1.08m on a formula simplification. DAG size of input: 186 DAG size of output: 181 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:01:21,442 WARN L286 SmtUtils]: Spent 16.16s on a formula simplification. DAG size of input: 99 DAG size of output: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:01:23,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:02:06,379 WARN L286 SmtUtils]: Spent 39.34s on a formula simplification. DAG size of input: 175 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:02:15,048 WARN L286 SmtUtils]: Spent 7.75s on a formula simplification. DAG size of input: 105 DAG size of output: 94 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:02:16,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:02:22,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:02:26,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:02:29,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:02:31,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:02:35,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:03:47,908 WARN L286 SmtUtils]: Spent 1.03m on a formula simplification. DAG size of input: 179 DAG size of output: 174 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:03:49,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:03:52,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:03:56,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:04:00,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:04:23,955 WARN L286 SmtUtils]: Spent 11.19s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:04:27,245 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 [] [2024-11-28 03:04:38,522 WARN L286 SmtUtils]: Spent 9.43s on a formula simplification that was a NOOP. DAG size: 96 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:05:00,527 WARN L286 SmtUtils]: Spent 15.34s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:05:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:02,124 INFO L93 Difference]: Finished difference Result 656 states and 843 transitions. [2024-11-28 03:05:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-28 03:05:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 150 [2024-11-28 03:05:02,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:02,128 INFO L225 Difference]: With dead ends: 656 [2024-11-28 03:05:02,129 INFO L226 Difference]: Without dead ends: 640 [2024-11-28 03:05:02,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 257.0s TimeCoverageRelationStatistics Valid=1046, Invalid=3646, Unknown=0, NotChecked=0, Total=4692 [2024-11-28 03:05:02,130 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 467 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 154 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:02,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 397 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1446 Invalid, 2 Unknown, 0 Unchecked, 50.4s Time] [2024-11-28 03:05:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-28 03:05:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 597. [2024-11-28 03:05:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 496 states have (on average 1.1774193548387097) internal successors, (584), 504 states have internal predecessors, (584), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:05:02,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 764 transitions. [2024-11-28 03:05:02,366 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 764 transitions. Word has length 150 [2024-11-28 03:05:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:02,366 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 764 transitions. [2024-11-28 03:05:02,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:05:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 764 transitions. [2024-11-28 03:05:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:05:02,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:02,367 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 03:05:02,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 03:05:02,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 03:05:02,568 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:05:02,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:02,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1721134809, now seen corresponding path program 2 times [2024-11-28 03:05:02,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:02,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317984458] [2024-11-28 03:05:02,569 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:02,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:02,596 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:05:02,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:05:02,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752364475] [2024-11-28 03:05:02,597 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:02,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:02,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:02,601 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:02,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 03:05:02,695 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:05:02,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:05:02,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:05:02,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-28 03:05:03,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:05:08,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:08,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317984458] [2024-11-28 03:05:08,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:05:08,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752364475] [2024-11-28 03:05:08,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752364475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:05:08,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:05:08,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 03:05:08,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559476305] [2024-11-28 03:05:08,537 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:05:08,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:05:08,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:08,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:05:08,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=252, Unknown=1, NotChecked=0, Total=342 [2024-11-28 03:05:08,538 INFO L87 Difference]: Start difference. First operand 597 states and 764 transitions. Second operand has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:05:09,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:09,631 INFO L93 Difference]: Finished difference Result 602 states and 770 transitions. [2024-11-28 03:05:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:05:09,631 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 151 [2024-11-28 03:05:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:09,635 INFO L225 Difference]: With dead ends: 602 [2024-11-28 03:05:09,635 INFO L226 Difference]: Without dead ends: 601 [2024-11-28 03:05:09,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=107, Invalid=312, Unknown=1, NotChecked=0, Total=420 [2024-11-28 03:05:09,636 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 22 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:09,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 445 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:05:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-28 03:05:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 598. [2024-11-28 03:05:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 497 states have (on average 1.1770623742454729) internal successors, (585), 505 states have internal predecessors, (585), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:05:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 765 transitions. [2024-11-28 03:05:09,924 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 765 transitions. Word has length 151 [2024-11-28 03:05:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:09,925 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 765 transitions. [2024-11-28 03:05:09,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:05:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 765 transitions. [2024-11-28 03:05:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:05:09,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:09,926 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 03:05:09,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 03:05:10,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 03:05:10,127 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:05:10,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1815571404, now seen corresponding path program 2 times [2024-11-28 03:05:10,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:10,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408936125] [2024-11-28 03:05:10,128 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:10,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:10,155 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:05:10,155 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:05:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886137085] [2024-11-28 03:05:10,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:10,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:10,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:10,160 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:10,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 03:05:10,260 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:05:10,260 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:05:10,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:05:10,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-28 03:05:10,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:05:15,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:15,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408936125] [2024-11-28 03:05:15,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:05:15,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886137085] [2024-11-28 03:05:15,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886137085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:05:15,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:05:15,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:05:15,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106899834] [2024-11-28 03:05:15,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:05:15,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:05:15,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:15,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:05:15,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=120, Unknown=1, NotChecked=0, Total=156 [2024-11-28 03:05:15,505 INFO L87 Difference]: Start difference. First operand 598 states and 765 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:05:16,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:16,262 INFO L93 Difference]: Finished difference Result 602 states and 769 transitions. [2024-11-28 03:05:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:05:16,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 152 [2024-11-28 03:05:16,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:16,265 INFO L225 Difference]: With dead ends: 602 [2024-11-28 03:05:16,265 INFO L226 Difference]: Without dead ends: 601 [2024-11-28 03:05:16,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=53, Invalid=186, Unknown=1, NotChecked=0, Total=240 [2024-11-28 03:05:16,266 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 26 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:16,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 330 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:05:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-28 03:05:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2024-11-28 03:05:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 498 states have (on average 1.176706827309237) internal successors, (586), 506 states have internal predecessors, (586), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:05:16,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 766 transitions. [2024-11-28 03:05:16,492 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 766 transitions. Word has length 152 [2024-11-28 03:05:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:16,492 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 766 transitions. [2024-11-28 03:05:16,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:05:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 766 transitions. [2024-11-28 03:05:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:05:16,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:16,493 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 03:05:16,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 03:05:16,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 03:05:16,694 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:05:16,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1007393066, now seen corresponding path program 2 times [2024-11-28 03:05:16,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:16,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937316625] [2024-11-28 03:05:16,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:16,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:16,744 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:05:16,744 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:05:16,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820270310] [2024-11-28 03:05:16,750 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:16,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:16,752 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:16,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 03:05:16,844 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:05:16,844 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:05:16,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 03:05:16,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-28 03:05:18,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:05:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 42 proven. 58 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-28 03:05:28,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:28,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937316625] [2024-11-28 03:05:28,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:05:28,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820270310] [2024-11-28 03:05:28,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820270310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:05:28,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:05:28,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2024-11-28 03:05:28,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727005823] [2024-11-28 03:05:28,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:05:28,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-28 03:05:28,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:28,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-28 03:05:28,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:05:28,490 INFO L87 Difference]: Start difference. First operand 599 states and 766 transitions. Second operand has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:05:39,651 WARN L286 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 121 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:05:47,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:06:04,189 WARN L286 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 119 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:06:15,054 WARN L286 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 119 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:06:37,544 WARN L286 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 116 DAG size of output: 109 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:06:38,674 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 [] [2024-11-28 03:06:47,641 WARN L286 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 121 DAG size of output: 114 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:06:59,334 WARN L286 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 123 DAG size of output: 116 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:07:08,134 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 120 DAG size of output: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:07:25,178 WARN L286 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 91 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:07:31,016 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:07:46,397 WARN L286 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 91 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:07:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:52,645 INFO L93 Difference]: Finished difference Result 636 states and 817 transitions. [2024-11-28 03:07:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-28 03:07:52,646 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) Word has length 154 [2024-11-28 03:07:52,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:52,648 INFO L225 Difference]: With dead ends: 636 [2024-11-28 03:07:52,648 INFO L226 Difference]: Without dead ends: 584 [2024-11-28 03:07:52,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 131.8s TimeCoverageRelationStatistics Valid=1790, Invalid=6400, Unknown=0, NotChecked=0, Total=8190 [2024-11-28 03:07:52,650 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 459 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:52,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 447 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2024-11-28 03:07:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-28 03:07:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 497. [2024-11-28 03:07:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 411 states have (on average 1.1995133819951338) internal successors, (493), 418 states have internal predecessors, (493), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:07:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 645 transitions. [2024-11-28 03:07:52,862 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 645 transitions. Word has length 154 [2024-11-28 03:07:52,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:52,862 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 645 transitions. [2024-11-28 03:07:52,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:07:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 645 transitions. [2024-11-28 03:07:52,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:07:52,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:52,863 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 03:07:52,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 03:07:53,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 03:07:53,063 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:07:53,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:53,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1430429712, now seen corresponding path program 5 times [2024-11-28 03:07:53,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:53,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586346690] [2024-11-28 03:07:53,064 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:07:53,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:53,106 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 03:07:53,106 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:07:53,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010302375] [2024-11-28 03:07:53,107 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:07:53,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:53,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:53,111 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:53,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 03:07:53,213 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 03:07:53,213 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:07:53,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:07:53,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 12 proven. 109 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2024-11-28 03:07:54,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:55,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:55,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586346690] [2024-11-28 03:07:55,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:07:55,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010302375] [2024-11-28 03:07:55,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010302375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:55,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:55,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-28 03:07:55,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440086326] [2024-11-28 03:07:55,304 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:07:55,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:07:55,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:55,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:07:55,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:07:55,305 INFO L87 Difference]: Start difference. First operand 497 states and 645 transitions. Second operand has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-28 03:07:56,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:56,560 INFO L93 Difference]: Finished difference Result 562 states and 728 transitions. [2024-11-28 03:07:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:07:56,561 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 157 [2024-11-28 03:07:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:56,564 INFO L225 Difference]: With dead ends: 562 [2024-11-28 03:07:56,564 INFO L226 Difference]: Without dead ends: 560 [2024-11-28 03:07:56,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:07:56,565 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 88 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:56,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 324 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:07:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-28 03:07:56,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 543. [2024-11-28 03:07:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 451 states have (on average 1.1951219512195121) internal successors, (539), 458 states have internal predecessors, (539), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:07:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 703 transitions. [2024-11-28 03:07:56,878 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 703 transitions. Word has length 157 [2024-11-28 03:07:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:56,878 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 703 transitions. [2024-11-28 03:07:56,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-28 03:07:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 703 transitions. [2024-11-28 03:07:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:07:56,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:56,879 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:56,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 03:07:57,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-28 03:07:57,080 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:07:57,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash 880374135, now seen corresponding path program 2 times [2024-11-28 03:07:57,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333046168] [2024-11-28 03:07:57,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:07:57,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:57,118 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:07:57,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:07:57,514 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-28 03:07:57,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:57,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333046168] [2024-11-28 03:07:57,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333046168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:57,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197844316] [2024-11-28 03:07:57,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:07:57,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:57,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:57,517 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:57,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e211729b-fadc-4f34-9615-ef672cf51fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 03:07:57,614 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:07:57,614 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:07:57,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:07:57,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:57,792 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-28 03:07:57,792 INFO L312 TraceCheckSpWp]: Computing backward predicates...