./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.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_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/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_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/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_35f16569-586f-4a5f-8844-a39370c0aff6/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 3134c54bcf8aadaf562f6870f2277db1ec6f958b1ed6dba99e7410745dba79ba --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:08:55,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:08:55,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:08:55,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:08:55,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:08:55,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:08:55,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:08:55,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:08:55,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:08:55,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:08:55,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:08:55,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:08:55,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:08:55,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:08:55,605 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:08:55,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:08:55,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:08:55,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:08:55,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:08:55,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:08:55,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:08:55,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:08:55,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:08:55,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:08:55,607 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:08:55,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:08:55,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:08:55,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:08:55,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:08:55,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:08:55,608 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:08:55,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:08:55,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:08:55,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:08:55,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:55,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:08:55,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:08:55,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:08:55,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:08:55,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:55,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:08:55,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:08:55,610 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_35f16569-586f-4a5f-8844-a39370c0aff6/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 -> 3134c54bcf8aadaf562f6870f2277db1ec6f958b1ed6dba99e7410745dba79ba [2024-11-28 04:08:56,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:08:56,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:08:56,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:08:56,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:08:56,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:08:56,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.c [2024-11-28 04:08:59,582 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/data/d327b701f/aa60d0f53c2f43dc8679d6ce19201a18/FLAG6efbe3a0c [2024-11-28 04:08:59,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:08:59,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.c [2024-11-28 04:08:59,879 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/data/d327b701f/aa60d0f53c2f43dc8679d6ce19201a18/FLAG6efbe3a0c [2024-11-28 04:09:00,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/data/d327b701f/aa60d0f53c2f43dc8679d6ce19201a18 [2024-11-28 04:09:00,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:09:00,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:09:00,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:09:00,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:09:00,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:09:00,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244d9f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00, skipping insertion in model container [2024-11-28 04:09:00,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:09:00,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:09:00,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:09:00,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:09:00,452 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:09:00,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00 WrapperNode [2024-11-28 04:09:00,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:09:00,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:09:00,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:09:00,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:09:00,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,513 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-28 04:09:00,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:09:00,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:09:00,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:09:00,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:09:00,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,560 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 04:09:00,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:09:00,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:09:00,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:09:00,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:09:00,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (1/1) ... [2024-11-28 04:09:00,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:09:00,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:00,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:09:00,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:09:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:09:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:09:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:09:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:09:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:09:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:09:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:09:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:09:00,778 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:09:00,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:09:01,429 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-28 04:09:01,430 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:09:01,448 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:09:01,448 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:09:01,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:09:01 BoogieIcfgContainer [2024-11-28 04:09:01,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:09:01,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:09:01,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:09:01,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:09:01,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:09:00" (1/3) ... [2024-11-28 04:09:01,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f227eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:09:01, skipping insertion in model container [2024-11-28 04:09:01,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:09:00" (2/3) ... [2024-11-28 04:09:01,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f227eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:09:01, skipping insertion in model container [2024-11-28 04:09:01,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:09:01" (3/3) ... [2024-11-28 04:09:01,465 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound50.c [2024-11-28 04:09:01,486 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:09:01,488 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_valuebound50.c that has 3 procedures, 143 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-28 04:09:01,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:09:01,581 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;@78011651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:09:01,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-28 04:09:01,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 129 states have internal predecessors, (135), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:09:01,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:09:01,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:01,597 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:01,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:01,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:01,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2059565640, now seen corresponding path program 1 times [2024-11-28 04:09:01,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:01,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484295791] [2024-11-28 04:09:01,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:01,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:09:01,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:01,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484295791] [2024-11-28 04:09:01,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484295791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753232520] [2024-11-28 04:09:01,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:01,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:01,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:01,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:09:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:01,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:09:01,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:09:01,941 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:01,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753232520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:01,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:01,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:09:01,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521601414] [2024-11-28 04:09:01,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:01,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:09:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:01,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:09:01,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:09:01,972 INFO L87 Difference]: Start difference. First operand has 143 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 129 states have internal predecessors, (135), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:09:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:02,039 INFO L93 Difference]: Finished difference Result 282 states and 320 transitions. [2024-11-28 04:09:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:09:02,042 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-28 04:09:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:02,051 INFO L225 Difference]: With dead ends: 282 [2024-11-28 04:09:02,052 INFO L226 Difference]: Without dead ends: 136 [2024-11-28 04:09:02,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:09:02,059 INFO L435 NwaCegarLoop]: 152 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, 152 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 04:09:02,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:09:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-28 04:09:02,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-28 04:09:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 68 states have (on average 1.838235294117647) internal successors, (125), 123 states have internal predecessors, (125), 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 04:09:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 145 transitions. [2024-11-28 04:09:02,144 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 145 transitions. Word has length 25 [2024-11-28 04:09:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:02,144 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 145 transitions. [2024-11-28 04:09:02,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:09:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 145 transitions. [2024-11-28 04:09:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:09:02,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:02,146 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:02,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:02,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:02,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:02,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash 811223820, now seen corresponding path program 1 times [2024-11-28 04:09:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:02,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199757175] [2024-11-28 04:09:02,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:02,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616081009] [2024-11-28 04:09:02,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:02,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:02,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:02,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:02,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:09:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:02,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:09:02,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:02,558 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 04:09:02,559 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:02,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:02,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199757175] [2024-11-28 04:09:02,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616081009] [2024-11-28 04:09:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616081009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:02,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:02,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:02,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089271433] [2024-11-28 04:09:02,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:02,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:02,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:02,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:02,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:02,568 INFO L87 Difference]: Start difference. First operand 136 states and 145 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:09:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:03,057 INFO L93 Difference]: Finished difference Result 220 states and 268 transitions. [2024-11-28 04:09:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:03,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-28 04:09:03,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:03,060 INFO L225 Difference]: With dead ends: 220 [2024-11-28 04:09:03,061 INFO L226 Difference]: Without dead ends: 216 [2024-11-28 04:09:03,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 04:09:03,062 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 73 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:03,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 146 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-28 04:09:03,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 174. [2024-11-28 04:09:03,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 101 states have (on average 1.8514851485148516) internal successors, (187), 156 states have internal predecessors, (187), 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 04:09:03,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 217 transitions. [2024-11-28 04:09:03,084 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 217 transitions. Word has length 25 [2024-11-28 04:09:03,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:03,084 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 217 transitions. [2024-11-28 04:09:03,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:09:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 217 transitions. [2024-11-28 04:09:03,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:09:03,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:03,086 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:03,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:03,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 04:09:03,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:03,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:03,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2097955250, now seen corresponding path program 1 times [2024-11-28 04:09:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:03,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527183100] [2024-11-28 04:09:03,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:03,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:03,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535365769] [2024-11-28 04:09:03,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:03,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:03,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:09:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:03,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:09:03,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:03,462 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 04:09:03,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:03,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527183100] [2024-11-28 04:09:03,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535365769] [2024-11-28 04:09:03,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535365769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:03,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:03,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:03,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625534125] [2024-11-28 04:09:03,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:03,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:03,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:03,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:03,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:03,464 INFO L87 Difference]: Start difference. First operand 174 states and 217 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:09:03,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:03,806 INFO L93 Difference]: Finished difference Result 274 states and 340 transitions. [2024-11-28 04:09:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:03,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-28 04:09:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:03,809 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:09:03,809 INFO L226 Difference]: Without dead ends: 266 [2024-11-28 04:09:03,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 04:09:03,810 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 84 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:03,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 206 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-28 04:09:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 226. [2024-11-28 04:09:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 147 states have (on average 1.8027210884353742) internal successors, (265), 202 states have internal predecessors, (265), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:09:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 307 transitions. [2024-11-28 04:09:03,835 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 307 transitions. Word has length 27 [2024-11-28 04:09:03,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:03,835 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 307 transitions. [2024-11-28 04:09:03,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:09:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 307 transitions. [2024-11-28 04:09:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:09:03,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:03,836 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:03,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:04,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 04:09:04,037 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:04,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:04,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1795331696, now seen corresponding path program 1 times [2024-11-28 04:09:04,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:04,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778371603] [2024-11-28 04:09:04,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:04,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126135710] [2024-11-28 04:09:04,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:04,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:04,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:04,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:04,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:09:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:04,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:09:04,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:04,229 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 04:09:04,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:04,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:04,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778371603] [2024-11-28 04:09:04,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:04,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126135710] [2024-11-28 04:09:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126135710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:04,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948863680] [2024-11-28 04:09:04,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:04,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:04,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:04,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:04,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:04,232 INFO L87 Difference]: Start difference. First operand 226 states and 307 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:09:04,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:04,655 INFO L93 Difference]: Finished difference Result 260 states and 326 transitions. [2024-11-28 04:09:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-11-28 04:09:04,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:04,658 INFO L225 Difference]: With dead ends: 260 [2024-11-28 04:09:04,658 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:09:04,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 04:09:04,693 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 61 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:04,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 132 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:04,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:09:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 192. [2024-11-28 04:09:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 118 states have (on average 1.7203389830508475) internal successors, (203), 173 states have internal predecessors, (203), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:09:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 235 transitions. [2024-11-28 04:09:04,731 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 235 transitions. Word has length 29 [2024-11-28 04:09:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:04,732 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 235 transitions. [2024-11-28 04:09:04,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:09:04,736 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 235 transitions. [2024-11-28 04:09:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:09:04,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:04,737 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:04,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:04,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:04,938 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:04,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2135988288, now seen corresponding path program 1 times [2024-11-28 04:09:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:04,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303605099] [2024-11-28 04:09:04,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:04,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:04,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182639657] [2024-11-28 04:09:04,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:04,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:04,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:04,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:05,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:09:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:05,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:09:05,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:05,104 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 04:09:05,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:05,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:05,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303605099] [2024-11-28 04:09:05,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:05,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182639657] [2024-11-28 04:09:05,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182639657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:05,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:05,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:05,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976899054] [2024-11-28 04:09:05,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:05,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:05,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:05,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:05,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:05,107 INFO L87 Difference]: Start difference. First operand 192 states and 235 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, (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 04:09:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:05,371 INFO L93 Difference]: Finished difference Result 352 states and 452 transitions. [2024-11-28 04:09:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:05,372 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, (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 36 [2024-11-28 04:09:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:05,376 INFO L225 Difference]: With dead ends: 352 [2024-11-28 04:09:05,376 INFO L226 Difference]: Without dead ends: 344 [2024-11-28 04:09:05,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 04:09:05,378 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 84 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:05,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 200 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:09:05,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-28 04:09:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 269. [2024-11-28 04:09:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.7043010752688172) internal successors, (317), 241 states have internal predecessors, (317), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 367 transitions. [2024-11-28 04:09:05,401 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 367 transitions. Word has length 36 [2024-11-28 04:09:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:05,402 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 367 transitions. [2024-11-28 04:09:05,402 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, (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 04:09:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 367 transitions. [2024-11-28 04:09:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:09:05,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:05,404 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:05,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:09:05,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:05,609 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:05,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash -309620702, now seen corresponding path program 1 times [2024-11-28 04:09:05,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:05,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155777869] [2024-11-28 04:09:05,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:05,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:05,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468012668] [2024-11-28 04:09:05,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:05,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:05,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:05,642 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:05,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:09:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:05,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:05,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:05,841 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 04:09:05,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:05,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:05,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155777869] [2024-11-28 04:09:05,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:05,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468012668] [2024-11-28 04:09:05,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468012668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:05,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:05,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:05,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761522135] [2024-11-28 04:09:05,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:05,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:05,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:05,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:05,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:05,845 INFO L87 Difference]: Start difference. First operand 269 states and 367 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 04:09:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:06,190 INFO L93 Difference]: Finished difference Result 322 states and 432 transitions. [2024-11-28 04:09:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:06,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 38 [2024-11-28 04:09:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:06,193 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:09:06,194 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:09:06,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:06,196 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 230 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:06,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 143 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:06,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:09:06,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2024-11-28 04:09:06,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6827956989247312) internal successors, (313), 241 states have internal predecessors, (313), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 363 transitions. [2024-11-28 04:09:06,230 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 363 transitions. Word has length 38 [2024-11-28 04:09:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:06,231 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 363 transitions. [2024-11-28 04:09:06,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 04:09:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 363 transitions. [2024-11-28 04:09:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 04:09:06,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:06,232 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:06,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:09:06,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:06,433 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:06,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:06,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1008307103, now seen corresponding path program 1 times [2024-11-28 04:09:06,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:06,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800826401] [2024-11-28 04:09:06,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:06,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:06,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964863742] [2024-11-28 04:09:06,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:06,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:06,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:06,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:09:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:06,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:06,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:06,673 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 04:09:06,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:06,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:06,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800826401] [2024-11-28 04:09:06,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:06,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964863742] [2024-11-28 04:09:06,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964863742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:06,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:06,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:06,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956634647] [2024-11-28 04:09:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:06,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:06,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:06,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:06,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:06,680 INFO L87 Difference]: Start difference. First operand 269 states and 363 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 04:09:07,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:07,023 INFO L93 Difference]: Finished difference Result 322 states and 428 transitions. [2024-11-28 04:09:07,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:07,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 39 [2024-11-28 04:09:07,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:07,027 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:09:07,027 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:09:07,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:07,029 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:07,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 160 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:07,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:09:07,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2024-11-28 04:09:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6612903225806452) internal successors, (309), 241 states have internal predecessors, (309), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 359 transitions. [2024-11-28 04:09:07,051 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 359 transitions. Word has length 39 [2024-11-28 04:09:07,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:07,052 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 359 transitions. [2024-11-28 04:09:07,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 04:09:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 359 transitions. [2024-11-28 04:09:07,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:09:07,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:07,053 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:07,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:07,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:07,257 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:07,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1192749052, now seen corresponding path program 1 times [2024-11-28 04:09:07,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:07,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427392311] [2024-11-28 04:09:07,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:07,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403535247] [2024-11-28 04:09:07,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:07,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:07,288 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:07,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:09:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:07,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:07,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:07,416 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 04:09:07,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:07,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:07,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427392311] [2024-11-28 04:09:07,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:07,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403535247] [2024-11-28 04:09:07,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403535247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:07,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:07,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:07,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641069222] [2024-11-28 04:09:07,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:07,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:07,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:07,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:07,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:07,419 INFO L87 Difference]: Start difference. First operand 269 states and 359 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 04:09:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:07,937 INFO L93 Difference]: Finished difference Result 342 states and 432 transitions. [2024-11-28 04:09:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 40 [2024-11-28 04:09:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:07,940 INFO L225 Difference]: With dead ends: 342 [2024-11-28 04:09:07,941 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 04:09:07,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:07,943 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 84 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:07,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 221 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:09:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 04:09:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 270. [2024-11-28 04:09:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 187 states have (on average 1.641711229946524) internal successors, (307), 242 states have internal predecessors, (307), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 357 transitions. [2024-11-28 04:09:07,969 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 357 transitions. Word has length 40 [2024-11-28 04:09:07,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:07,970 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 357 transitions. [2024-11-28 04:09:07,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 04:09:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 357 transitions. [2024-11-28 04:09:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:09:07,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:07,972 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:07,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:08,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:08,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:08,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:08,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1679485123, now seen corresponding path program 1 times [2024-11-28 04:09:08,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:08,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845588122] [2024-11-28 04:09:08,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:08,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:08,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94130901] [2024-11-28 04:09:08,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:08,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:08,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:08,232 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:08,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:09:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:08,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:08,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:08,443 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 04:09:08,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:08,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:08,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845588122] [2024-11-28 04:09:08,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:08,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94130901] [2024-11-28 04:09:08,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94130901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:08,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:08,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:08,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500326347] [2024-11-28 04:09:08,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:08,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:08,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:08,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:08,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:08,450 INFO L87 Difference]: Start difference. First operand 270 states and 357 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 04:09:09,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:09,322 INFO L93 Difference]: Finished difference Result 342 states and 428 transitions. [2024-11-28 04:09:09,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:09,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 41 [2024-11-28 04:09:09,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:09,325 INFO L225 Difference]: With dead ends: 342 [2024-11-28 04:09:09,325 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 04:09:09,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:09,326 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 84 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:09,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 224 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:09:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 04:09:09,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 271. [2024-11-28 04:09:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 188 states have (on average 1.622340425531915) internal successors, (305), 243 states have internal predecessors, (305), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 355 transitions. [2024-11-28 04:09:09,348 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 355 transitions. Word has length 41 [2024-11-28 04:09:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:09,348 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 355 transitions. [2024-11-28 04:09:09,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 04:09:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 355 transitions. [2024-11-28 04:09:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:09:09,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:09,350 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:09,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:09:09,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:09,555 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:09,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2075591644, now seen corresponding path program 1 times [2024-11-28 04:09:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:09,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369862243] [2024-11-28 04:09:09,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:09,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744269704] [2024-11-28 04:09:09,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:09,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:09,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:09,589 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:09,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:09:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:09,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:09,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:09:09,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:09,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:09,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369862243] [2024-11-28 04:09:09,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:09,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744269704] [2024-11-28 04:09:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744269704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:09,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:09,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:09,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250380278] [2024-11-28 04:09:09,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:09,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:09,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:09,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:09,791 INFO L87 Difference]: Start difference. First operand 271 states and 355 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:09:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:10,109 INFO L93 Difference]: Finished difference Result 293 states and 374 transitions. [2024-11-28 04:09:10,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:10,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 49 [2024-11-28 04:09:10,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:10,112 INFO L225 Difference]: With dead ends: 293 [2024-11-28 04:09:10,112 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 04:09:10,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:10,114 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 154 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:10,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 171 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:10,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 04:09:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 272. [2024-11-28 04:09:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 189 states have (on average 1.6084656084656084) internal successors, (304), 244 states have internal predecessors, (304), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 354 transitions. [2024-11-28 04:09:10,136 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 354 transitions. Word has length 49 [2024-11-28 04:09:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:10,137 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 354 transitions. [2024-11-28 04:09:10,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:09:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 354 transitions. [2024-11-28 04:09:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:09:10,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:10,143 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:10,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:10,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:09:10,343 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:10,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:10,344 INFO L85 PathProgramCache]: Analyzing trace with hash 81168556, now seen corresponding path program 1 times [2024-11-28 04:09:10,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:10,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138302588] [2024-11-28 04:09:10,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:10,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711615510] [2024-11-28 04:09:10,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:10,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:10,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:10,388 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:10,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:09:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:10,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:10,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:10,576 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:09:10,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:10,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138302588] [2024-11-28 04:09:10,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:10,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711615510] [2024-11-28 04:09:10,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711615510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:10,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:10,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:10,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875938325] [2024-11-28 04:09:10,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:10,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:10,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:10,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:10,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:10,579 INFO L87 Difference]: Start difference. First operand 272 states and 354 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:09:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:10,908 INFO L93 Difference]: Finished difference Result 293 states and 371 transitions. [2024-11-28 04:09:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2024-11-28 04:09:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:10,911 INFO L225 Difference]: With dead ends: 293 [2024-11-28 04:09:10,911 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 04:09:10,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:10,912 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 206 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:10,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 153 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 04:09:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 273. [2024-11-28 04:09:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.5947368421052632) internal successors, (303), 245 states have internal predecessors, (303), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2024-11-28 04:09:10,933 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 50 [2024-11-28 04:09:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:10,933 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2024-11-28 04:09:10,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:09:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2024-11-28 04:09:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:09:10,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:10,935 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:10,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:11,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:09:11,136 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:11,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1778741978, now seen corresponding path program 1 times [2024-11-28 04:09:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143381827] [2024-11-28 04:09:11,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:11,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804690529] [2024-11-28 04:09:11,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:11,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:11,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:11,183 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:11,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:09:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:11,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:11,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:09:11,325 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:11,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143381827] [2024-11-28 04:09:11,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:11,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804690529] [2024-11-28 04:09:11,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804690529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:11,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:11,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:11,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544249207] [2024-11-28 04:09:11,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:11,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:11,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:11,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:11,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:11,328 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 04:09:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:11,720 INFO L93 Difference]: Finished difference Result 301 states and 360 transitions. [2024-11-28 04:09:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 51 [2024-11-28 04:09:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:11,723 INFO L225 Difference]: With dead ends: 301 [2024-11-28 04:09:11,723 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 04:09:11,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:11,724 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 126 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:11,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 199 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 04:09:11,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 274. [2024-11-28 04:09:11,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 191 states have (on average 1.581151832460733) internal successors, (302), 246 states have internal predecessors, (302), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:11,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 352 transitions. [2024-11-28 04:09:11,746 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 352 transitions. Word has length 51 [2024-11-28 04:09:11,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:11,746 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 352 transitions. [2024-11-28 04:09:11,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 04:09:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 352 transitions. [2024-11-28 04:09:11,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:09:11,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:11,748 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:11,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:11,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:09:11,953 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:11,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash 693573614, now seen corresponding path program 1 times [2024-11-28 04:09:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058598221] [2024-11-28 04:09:11,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:11,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694695136] [2024-11-28 04:09:11,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:11,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:11,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:12,000 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:12,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:09:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:12,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:12,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:09:12,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:12,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:12,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058598221] [2024-11-28 04:09:12,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:12,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694695136] [2024-11-28 04:09:12,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694695136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:12,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:12,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276665831] [2024-11-28 04:09:12,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:12,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:12,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:12,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:12,185 INFO L87 Difference]: Start difference. First operand 274 states and 352 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 04:09:13,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:13,056 INFO L93 Difference]: Finished difference Result 301 states and 357 transitions. [2024-11-28 04:09:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:13,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 52 [2024-11-28 04:09:13,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:13,058 INFO L225 Difference]: With dead ends: 301 [2024-11-28 04:09:13,059 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 04:09:13,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:13,060 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 76 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:13,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 251 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:09:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 04:09:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 275. [2024-11-28 04:09:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 192 states have (on average 1.5677083333333333) internal successors, (301), 247 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 351 transitions. [2024-11-28 04:09:13,081 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 351 transitions. Word has length 52 [2024-11-28 04:09:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:13,082 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 351 transitions. [2024-11-28 04:09:13,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 04:09:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 351 transitions. [2024-11-28 04:09:13,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:09:13,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:13,084 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:13,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:13,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:09:13,289 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:13,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:13,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1166201914, now seen corresponding path program 1 times [2024-11-28 04:09:13,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:13,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362173982] [2024-11-28 04:09:13,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:13,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:13,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362173982] [2024-11-28 04:09:13,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362173982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:13,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:13,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:13,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414870515] [2024-11-28 04:09:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:13,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:13,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:13,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:13,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:13,429 INFO L87 Difference]: Start difference. First operand 275 states and 351 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:09:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:13,489 INFO L93 Difference]: Finished difference Result 275 states and 351 transitions. [2024-11-28 04:09:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2024-11-28 04:09:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:13,492 INFO L225 Difference]: With dead ends: 275 [2024-11-28 04:09:13,492 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 04:09:13,492 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 04:09:13,493 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 46 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:13,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 207 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:09:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 04:09:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-28 04:09:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 192 states have (on average 1.5364583333333333) internal successors, (295), 245 states have internal predecessors, (295), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 345 transitions. [2024-11-28 04:09:13,516 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 345 transitions. Word has length 59 [2024-11-28 04:09:13,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:13,516 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 345 transitions. [2024-11-28 04:09:13,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:09:13,517 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 345 transitions. [2024-11-28 04:09:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:09:13,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:13,518 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:13,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:09:13,518 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:13,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:13,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1792520839, now seen corresponding path program 1 times [2024-11-28 04:09:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:13,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884220919] [2024-11-28 04:09:13,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:13,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:13,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884220919] [2024-11-28 04:09:13,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884220919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588935052] [2024-11-28 04:09:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:13,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:13,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:13,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:13,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:13,652 INFO L87 Difference]: Start difference. First operand 273 states and 345 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:09:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:13,706 INFO L93 Difference]: Finished difference Result 273 states and 345 transitions. [2024-11-28 04:09:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:13,707 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2024-11-28 04:09:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:13,709 INFO L225 Difference]: With dead ends: 273 [2024-11-28 04:09:13,709 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 04:09:13,711 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 04:09:13,712 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 45 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:13,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 206 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:09:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 04:09:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-28 04:09:13,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 243 states have internal predecessors, (287), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 337 transitions. [2024-11-28 04:09:13,731 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 337 transitions. Word has length 60 [2024-11-28 04:09:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:13,731 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 337 transitions. [2024-11-28 04:09:13,732 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:09:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 337 transitions. [2024-11-28 04:09:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:09:13,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:13,733 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:13,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:09:13,733 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:13,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:13,734 INFO L85 PathProgramCache]: Analyzing trace with hash 266470676, now seen corresponding path program 1 times [2024-11-28 04:09:13,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:13,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091988700] [2024-11-28 04:09:13,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:13,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:13,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:13,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091988700] [2024-11-28 04:09:13,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091988700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:13,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:13,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:09:13,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205364654] [2024-11-28 04:09:13,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:13,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:09:13,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:13,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:09:13,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:09:13,908 INFO L87 Difference]: Start difference. First operand 271 states and 337 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:09:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:14,389 INFO L93 Difference]: Finished difference Result 272 states and 337 transitions. [2024-11-28 04:09:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:09:14,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2024-11-28 04:09:14,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:14,392 INFO L225 Difference]: With dead ends: 272 [2024-11-28 04:09:14,392 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 04:09:14,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 04:09:14,393 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 273 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:14,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 161 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 04:09:14,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-28 04:09:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 192 states have (on average 1.4895833333333333) internal successors, (286), 243 states have internal predecessors, (286), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 336 transitions. [2024-11-28 04:09:14,415 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 336 transitions. Word has length 61 [2024-11-28 04:09:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:14,415 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 336 transitions. [2024-11-28 04:09:14,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:09:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 336 transitions. [2024-11-28 04:09:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:09:14,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:14,417 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:14,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:09:14,417 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:14,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:14,418 INFO L85 PathProgramCache]: Analyzing trace with hash 266456774, now seen corresponding path program 1 times [2024-11-28 04:09:14,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:14,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023279745] [2024-11-28 04:09:14,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:14,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:14,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023279745] [2024-11-28 04:09:14,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023279745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:14,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:14,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:09:14,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373564377] [2024-11-28 04:09:14,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:14,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:09:14,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:14,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:09:14,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:09:14,616 INFO L87 Difference]: Start difference. First operand 271 states and 336 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:09:15,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:15,204 INFO L93 Difference]: Finished difference Result 274 states and 339 transitions. [2024-11-28 04:09:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:09:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2024-11-28 04:09:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:15,209 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:09:15,209 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 04:09:15,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 04:09:15,210 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 273 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:15,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 161 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:09:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 04:09:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-28 04:09:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 194 states have (on average 1.4845360824742269) internal successors, (288), 245 states have internal predecessors, (288), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 338 transitions. [2024-11-28 04:09:15,237 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 338 transitions. Word has length 61 [2024-11-28 04:09:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:15,237 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 338 transitions. [2024-11-28 04:09:15,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:09:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 338 transitions. [2024-11-28 04:09:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:09:15,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:15,239 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:15,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:09:15,239 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:15,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1328457983, now seen corresponding path program 1 times [2024-11-28 04:09:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:15,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377244134] [2024-11-28 04:09:15,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:15,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377244134] [2024-11-28 04:09:15,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377244134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:15,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:15,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:09:15,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990969166] [2024-11-28 04:09:15,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:15,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:15,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:15,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:15,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:15,382 INFO L87 Difference]: Start difference. First operand 273 states and 338 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:15,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:15,674 INFO L93 Difference]: Finished difference Result 330 states and 406 transitions. [2024-11-28 04:09:15,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:15,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-28 04:09:15,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:15,677 INFO L225 Difference]: With dead ends: 330 [2024-11-28 04:09:15,678 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 04:09:15,678 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 04:09:15,679 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 43 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:15,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 148 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:15,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 04:09:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 283. [2024-11-28 04:09:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 204 states have (on average 1.4656862745098038) internal successors, (299), 255 states have internal predecessors, (299), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 349 transitions. [2024-11-28 04:09:15,701 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 349 transitions. Word has length 64 [2024-11-28 04:09:15,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:15,702 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 349 transitions. [2024-11-28 04:09:15,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 349 transitions. [2024-11-28 04:09:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:09:15,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:15,704 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:15,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:09:15,704 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:15,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1042838488, now seen corresponding path program 1 times [2024-11-28 04:09:15,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:15,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85845183] [2024-11-28 04:09:15,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:15,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:15,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156063384] [2024-11-28 04:09:15,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:15,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:15,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:15,741 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:15,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:09:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:15,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:09:15,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:16,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:16,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:16,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85845183] [2024-11-28 04:09:16,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156063384] [2024-11-28 04:09:16,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156063384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:16,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:16,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:09:16,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501129494] [2024-11-28 04:09:16,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:16,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:16,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:16,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:16,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:16,305 INFO L87 Difference]: Start difference. First operand 283 states and 349 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:16,830 INFO L93 Difference]: Finished difference Result 324 states and 400 transitions. [2024-11-28 04:09:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:16,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-28 04:09:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:16,832 INFO L225 Difference]: With dead ends: 324 [2024-11-28 04:09:16,833 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 04:09:16,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:16,834 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 36 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:16,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 186 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:09:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 04:09:16,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 284. [2024-11-28 04:09:16,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 205 states have (on average 1.4585365853658536) internal successors, (299), 256 states have internal predecessors, (299), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 349 transitions. [2024-11-28 04:09:16,862 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 349 transitions. Word has length 66 [2024-11-28 04:09:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:16,863 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 349 transitions. [2024-11-28 04:09:16,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 349 transitions. [2024-11-28 04:09:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:09:16,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:16,864 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:16,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:17,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:17,067 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:17,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2031745190, now seen corresponding path program 1 times [2024-11-28 04:09:17,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:17,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777664287] [2024-11-28 04:09:17,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:17,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:17,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434688415] [2024-11-28 04:09:17,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:17,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:17,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:17,102 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:17,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:09:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:17,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:09:17,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:17,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:17,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777664287] [2024-11-28 04:09:17,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434688415] [2024-11-28 04:09:17,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434688415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:17,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:17,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:09:17,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234524549] [2024-11-28 04:09:17,746 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:17,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:17,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:17,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:17,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:17,748 INFO L87 Difference]: Start difference. First operand 284 states and 349 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:18,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:18,233 INFO L93 Difference]: Finished difference Result 324 states and 398 transitions. [2024-11-28 04:09:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:18,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-28 04:09:18,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:18,235 INFO L225 Difference]: With dead ends: 324 [2024-11-28 04:09:18,236 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 04:09:18,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:18,237 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 36 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:18,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 188 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:18,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 04:09:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 285. [2024-11-28 04:09:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 206 states have (on average 1.4514563106796117) internal successors, (299), 257 states have internal predecessors, (299), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 349 transitions. [2024-11-28 04:09:18,263 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 349 transitions. Word has length 67 [2024-11-28 04:09:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:18,263 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 349 transitions. [2024-11-28 04:09:18,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 349 transitions. [2024-11-28 04:09:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:09:18,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:18,264 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:18,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:09:18,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:18,465 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:18,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1253198940, now seen corresponding path program 1 times [2024-11-28 04:09:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:18,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019378787] [2024-11-28 04:09:18,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:18,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444900241] [2024-11-28 04:09:18,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:18,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:18,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:18,501 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:09:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:18,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:18,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 04:09:18,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:18,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:18,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019378787] [2024-11-28 04:09:18,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:18,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444900241] [2024-11-28 04:09:18,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444900241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:18,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:18,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318124406] [2024-11-28 04:09:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:18,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:18,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:18,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:18,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:18,672 INFO L87 Difference]: Start difference. First operand 285 states and 349 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:19,049 INFO L93 Difference]: Finished difference Result 337 states and 396 transitions. [2024-11-28 04:09:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:19,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-28 04:09:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:19,052 INFO L225 Difference]: With dead ends: 337 [2024-11-28 04:09:19,052 INFO L226 Difference]: Without dead ends: 336 [2024-11-28 04:09:19,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:19,053 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:19,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 166 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-28 04:09:19,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 285. [2024-11-28 04:09:19,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 206 states have (on average 1.4466019417475728) internal successors, (298), 257 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 348 transitions. [2024-11-28 04:09:19,080 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 348 transitions. Word has length 70 [2024-11-28 04:09:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:19,080 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 348 transitions. [2024-11-28 04:09:19,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:19,080 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 348 transitions. [2024-11-28 04:09:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 04:09:19,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:19,083 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:19,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:09:19,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:09:19,283 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:19,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:19,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2050031118, now seen corresponding path program 1 times [2024-11-28 04:09:19,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:19,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701481258] [2024-11-28 04:09:19,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:19,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:09:19,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:19,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701481258] [2024-11-28 04:09:19,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701481258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:19,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194258218] [2024-11-28 04:09:19,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:19,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:19,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:19,522 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:19,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:09:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:19,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:09:19,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:09:19,895 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:19,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194258218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:19,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:19,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:09:19,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919671885] [2024-11-28 04:09:19,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:19,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:19,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:19,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:19,898 INFO L87 Difference]: Start difference. First operand 285 states and 348 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 04:09:20,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:20,547 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2024-11-28 04:09:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:09:20,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 72 [2024-11-28 04:09:20,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:20,550 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:09:20,550 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:09:20,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:09:20,554 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 62 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:20,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 135 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:09:20,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:09:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 286. [2024-11-28 04:09:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 207 states have (on average 1.4396135265700483) internal successors, (298), 258 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 348 transitions. [2024-11-28 04:09:20,579 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 348 transitions. Word has length 72 [2024-11-28 04:09:20,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:20,579 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 348 transitions. [2024-11-28 04:09:20,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 04:09:20,579 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 348 transitions. [2024-11-28 04:09:20,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 04:09:20,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:20,580 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:20,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:09:20,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:09:20,785 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:20,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash 194461534, now seen corresponding path program 1 times [2024-11-28 04:09:20,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:20,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100431187] [2024-11-28 04:09:20,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:20,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:20,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38197269] [2024-11-28 04:09:20,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:20,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:20,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:20,819 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:20,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:09:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:20,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:09:20,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 04:09:21,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:21,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:21,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100431187] [2024-11-28 04:09:21,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:21,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38197269] [2024-11-28 04:09:21,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38197269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:21,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:21,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:21,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143052404] [2024-11-28 04:09:21,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:21,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:21,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:21,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:21,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:21,059 INFO L87 Difference]: Start difference. First operand 286 states and 348 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:21,491 INFO L93 Difference]: Finished difference Result 339 states and 393 transitions. [2024-11-28 04:09:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-28 04:09:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:21,493 INFO L225 Difference]: With dead ends: 339 [2024-11-28 04:09:21,493 INFO L226 Difference]: Without dead ends: 336 [2024-11-28 04:09:21,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:21,494 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:21,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 170 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:21,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-28 04:09:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 289. [2024-11-28 04:09:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 210 states have (on average 1.4333333333333333) internal successors, (301), 261 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 351 transitions. [2024-11-28 04:09:21,519 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 351 transitions. Word has length 71 [2024-11-28 04:09:21,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:21,520 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 351 transitions. [2024-11-28 04:09:21,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:09:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 351 transitions. [2024-11-28 04:09:21,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 04:09:21,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:21,521 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:21,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:21,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:09:21,722 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:21,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash -873544638, now seen corresponding path program 1 times [2024-11-28 04:09:21,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:21,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538957313] [2024-11-28 04:09:21,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:09:22,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538957313] [2024-11-28 04:09:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538957313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59904626] [2024-11-28 04:09:22,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:22,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:22,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:22,033 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:09:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:22,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:09:22,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:09:22,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59904626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:22,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:22,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-28 04:09:22,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520131203] [2024-11-28 04:09:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:22,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:22,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:22,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:22,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:09:22,443 INFO L87 Difference]: Start difference. First operand 289 states and 351 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 04:09:23,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:23,055 INFO L93 Difference]: Finished difference Result 321 states and 390 transitions. [2024-11-28 04:09:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:23,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 73 [2024-11-28 04:09:23,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:23,057 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:09:23,057 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:09:23,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:09:23,058 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:23,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 145 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:09:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:09:23,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2024-11-28 04:09:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 211 states have (on average 1.4265402843601895) internal successors, (301), 262 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:09:23,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2024-11-28 04:09:23,077 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 73 [2024-11-28 04:09:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:23,077 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2024-11-28 04:09:23,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 04:09:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2024-11-28 04:09:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:09:23,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:23,079 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 04:09:23,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:23,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:23,283 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:23,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash 978192934, now seen corresponding path program 1 times [2024-11-28 04:09:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:23,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590109948] [2024-11-28 04:09:23,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:23,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:23,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860090334] [2024-11-28 04:09:23,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:23,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:23,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:23,318 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:23,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:09:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:23,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:09:23,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:24,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:26,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:26,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590109948] [2024-11-28 04:09:26,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:26,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860090334] [2024-11-28 04:09:26,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860090334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:26,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:26,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:09:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485649418] [2024-11-28 04:09:26,700 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:26,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:26,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:26,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:09:26,702 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 04:09:28,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:28,158 INFO L93 Difference]: Finished difference Result 452 states and 581 transitions. [2024-11-28 04:09:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:09:28,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 77 [2024-11-28 04:09:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:28,161 INFO L225 Difference]: With dead ends: 452 [2024-11-28 04:09:28,162 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 04:09:28,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=55, Invalid=154, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:09:28,163 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 305 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:28,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 362 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:09:28,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 04:09:28,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 358. [2024-11-28 04:09:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 271 states have (on average 1.4649446494464944) internal successors, (397), 322 states have internal predecessors, (397), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:09:28,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 463 transitions. [2024-11-28 04:09:28,196 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 463 transitions. Word has length 77 [2024-11-28 04:09:28,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:28,197 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 463 transitions. [2024-11-28 04:09:28,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 04:09:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 463 transitions. [2024-11-28 04:09:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:09:28,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:28,198 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 04:09:28,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:09:28,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:28,402 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:28,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:28,403 INFO L85 PathProgramCache]: Analyzing trace with hash 259209945, now seen corresponding path program 1 times [2024-11-28 04:09:28,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:28,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527639223] [2024-11-28 04:09:28,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:28,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:28,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345813545] [2024-11-28 04:09:28,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:28,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:28,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:28,432 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:28,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:09:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:28,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:09:28,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:29,138 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:29,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:29,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527639223] [2024-11-28 04:09:29,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345813545] [2024-11-28 04:09:29,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345813545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:29,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:29,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:09:29,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36006576] [2024-11-28 04:09:29,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:29,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:29,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:29,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:29,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:09:29,639 INFO L87 Difference]: Start difference. First operand 358 states and 463 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 04:09:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:31,106 INFO L93 Difference]: Finished difference Result 471 states and 610 transitions. [2024-11-28 04:09:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:09:31,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 78 [2024-11-28 04:09:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:31,109 INFO L225 Difference]: With dead ends: 471 [2024-11-28 04:09:31,110 INFO L226 Difference]: Without dead ends: 464 [2024-11-28 04:09:31,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:09:31,111 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 434 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:31,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 343 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:31,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-28 04:09:31,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 417. [2024-11-28 04:09:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 324 states have (on average 1.4969135802469136) internal successors, (485), 375 states have internal predecessors, (485), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 04:09:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 563 transitions. [2024-11-28 04:09:31,158 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 563 transitions. Word has length 78 [2024-11-28 04:09:31,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:31,159 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 563 transitions. [2024-11-28 04:09:31,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 04:09:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 563 transitions. [2024-11-28 04:09:31,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:09:31,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:31,160 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 04:09:31,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:31,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:31,361 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:31,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:31,362 INFO L85 PathProgramCache]: Analyzing trace with hash -554426232, now seen corresponding path program 1 times [2024-11-28 04:09:31,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:31,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962412465] [2024-11-28 04:09:31,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:31,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:31,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18842369] [2024-11-28 04:09:31,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:31,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:31,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:31,394 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:31,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:09:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:31,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:09:31,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:32,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:32,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962412465] [2024-11-28 04:09:32,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:32,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18842369] [2024-11-28 04:09:32,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18842369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:32,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:32,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:09:32,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761216747] [2024-11-28 04:09:32,361 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:32,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:32,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:32,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:32,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:09:32,362 INFO L87 Difference]: Start difference. First operand 417 states and 563 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 04:09:33,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:33,577 INFO L93 Difference]: Finished difference Result 463 states and 596 transitions. [2024-11-28 04:09:33,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:09:33,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 79 [2024-11-28 04:09:33,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:33,579 INFO L225 Difference]: With dead ends: 463 [2024-11-28 04:09:33,580 INFO L226 Difference]: Without dead ends: 457 [2024-11-28 04:09:33,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:09:33,581 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 448 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:33,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 224 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:09:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-28 04:09:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 415. [2024-11-28 04:09:33,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 322 states have (on average 1.4565217391304348) internal successors, (469), 373 states have internal predecessors, (469), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 04:09:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 547 transitions. [2024-11-28 04:09:33,618 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 547 transitions. Word has length 79 [2024-11-28 04:09:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:33,619 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 547 transitions. [2024-11-28 04:09:33,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 04:09:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 547 transitions. [2024-11-28 04:09:33,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:09:33,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:33,620 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 04:09:33,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:09:33,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:33,824 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:33,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -7343941, now seen corresponding path program 1 times [2024-11-28 04:09:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063896435] [2024-11-28 04:09:33,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:33,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751448562] [2024-11-28 04:09:33,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:33,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:33,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:33,848 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:33,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:09:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:33,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:09:33,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:34,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:35,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:35,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063896435] [2024-11-28 04:09:35,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:35,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751448562] [2024-11-28 04:09:35,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751448562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:35,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:35,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:09:35,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566959485] [2024-11-28 04:09:35,013 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:35,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:35,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:35,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:35,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:09:35,014 INFO L87 Difference]: Start difference. First operand 415 states and 547 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 04:09:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:36,403 INFO L93 Difference]: Finished difference Result 516 states and 681 transitions. [2024-11-28 04:09:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:09:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 80 [2024-11-28 04:09:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:36,405 INFO L225 Difference]: With dead ends: 516 [2024-11-28 04:09:36,405 INFO L226 Difference]: Without dead ends: 514 [2024-11-28 04:09:36,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:09:36,406 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 299 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:36,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 331 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-28 04:09:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 449. [2024-11-28 04:09:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 352 states have (on average 1.4517045454545454) internal successors, (511), 403 states have internal predecessors, (511), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 04:09:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 597 transitions. [2024-11-28 04:09:36,449 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 597 transitions. Word has length 80 [2024-11-28 04:09:36,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:36,449 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 597 transitions. [2024-11-28 04:09:36,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 04:09:36,450 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 597 transitions. [2024-11-28 04:09:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:09:36,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:36,451 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:36,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:36,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:36,655 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:36,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash -227662102, now seen corresponding path program 1 times [2024-11-28 04:09:36,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:36,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438690794] [2024-11-28 04:09:36,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:36,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964897474] [2024-11-28 04:09:36,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:36,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:36,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:36,682 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:36,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:09:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:36,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:09:36,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:09:37,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:09:38,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438690794] [2024-11-28 04:09:38,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:38,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964897474] [2024-11-28 04:09:38,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964897474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:38,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:09:38,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2024-11-28 04:09:38,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970147946] [2024-11-28 04:09:38,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:38,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:09:38,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:38,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:09:38,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:09:38,283 INFO L87 Difference]: Start difference. First operand 449 states and 597 transitions. Second operand has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:09:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:41,202 INFO L93 Difference]: Finished difference Result 567 states and 766 transitions. [2024-11-28 04:09:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:09:41,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 81 [2024-11-28 04:09:41,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:41,206 INFO L225 Difference]: With dead ends: 567 [2024-11-28 04:09:41,206 INFO L226 Difference]: Without dead ends: 561 [2024-11-28 04:09:41,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:09:41,207 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 574 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:41,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 272 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 04:09:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-28 04:09:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 519. [2024-11-28 04:09:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 418 states have (on average 1.4162679425837321) internal successors, (592), 468 states have internal predecessors, (592), 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 04:09:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 688 transitions. [2024-11-28 04:09:41,260 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 688 transitions. Word has length 81 [2024-11-28 04:09:41,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:41,260 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 688 transitions. [2024-11-28 04:09:41,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:09:41,261 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 688 transitions. [2024-11-28 04:09:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:09:41,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:41,262 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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 04:09:41,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:09:41,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:41,463 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:41,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:41,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1351580398, now seen corresponding path program 1 times [2024-11-28 04:09:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:41,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102128329] [2024-11-28 04:09:41,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:41,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:41,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933414004] [2024-11-28 04:09:41,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:41,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:41,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:41,489 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:41,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:09:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:41,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:09:41,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:42,092 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:09:42,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:44,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102128329] [2024-11-28 04:09:44,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933414004] [2024-11-28 04:09:44,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933414004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:44,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:44,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:09:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16679553] [2024-11-28 04:09:44,956 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:44,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:09:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:44,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:09:44,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=139, Unknown=1, NotChecked=0, Total=182 [2024-11-28 04:09:44,957 INFO L87 Difference]: Start difference. First operand 519 states and 688 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:09:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:46,177 INFO L93 Difference]: Finished difference Result 653 states and 880 transitions. [2024-11-28 04:09:46,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:09:46,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 88 [2024-11-28 04:09:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:46,181 INFO L225 Difference]: With dead ends: 653 [2024-11-28 04:09:46,181 INFO L226 Difference]: Without dead ends: 651 [2024-11-28 04:09:46,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=95, Invalid=246, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:09:46,182 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 438 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:46,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 377 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:09:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-28 04:09:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 620. [2024-11-28 04:09:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 508 states have (on average 1.4409448818897639) internal successors, (732), 558 states have internal predecessors, (732), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:09:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 850 transitions. [2024-11-28 04:09:46,252 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 850 transitions. Word has length 88 [2024-11-28 04:09:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:46,253 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 850 transitions. [2024-11-28 04:09:46,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:09:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 850 transitions. [2024-11-28 04:09:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:09:46,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:46,255 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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 04:09:46,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:46,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:46,460 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:46,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:46,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1050680546, now seen corresponding path program 1 times [2024-11-28 04:09:46,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:46,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176980686] [2024-11-28 04:09:46,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:46,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:46,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616730285] [2024-11-28 04:09:46,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:46,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:46,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:46,487 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:46,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:09:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:46,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:09:46,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:09:47,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:47,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:47,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176980686] [2024-11-28 04:09:47,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:47,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616730285] [2024-11-28 04:09:47,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616730285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:47,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:09:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387411624] [2024-11-28 04:09:47,738 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:47,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:09:47,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:47,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:09:47,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:09:47,740 INFO L87 Difference]: Start difference. First operand 620 states and 850 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:09:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:49,185 INFO L93 Difference]: Finished difference Result 655 states and 883 transitions. [2024-11-28 04:09:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:09:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 89 [2024-11-28 04:09:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:49,188 INFO L225 Difference]: With dead ends: 655 [2024-11-28 04:09:49,188 INFO L226 Difference]: Without dead ends: 648 [2024-11-28 04:09:49,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:09:49,189 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 562 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:49,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 311 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:09:49,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-28 04:09:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 614. [2024-11-28 04:09:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 508 states have (on average 1.4074803149606299) internal successors, (715), 552 states have internal predecessors, (715), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:09:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 833 transitions. [2024-11-28 04:09:49,264 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 833 transitions. Word has length 89 [2024-11-28 04:09:49,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:49,265 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 833 transitions. [2024-11-28 04:09:49,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:09:49,265 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 833 transitions. [2024-11-28 04:09:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:09:49,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:49,266 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:49,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:09:49,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:49,468 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:49,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:49,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1788641520, now seen corresponding path program 1 times [2024-11-28 04:09:49,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:49,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879683461] [2024-11-28 04:09:49,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:49,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:49,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241534184] [2024-11-28 04:09:49,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:49,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:49,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:49,494 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:49,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:09:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:49,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:09:49,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 04:09:49,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:50,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:50,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879683461] [2024-11-28 04:09:50,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:50,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241534184] [2024-11-28 04:09:50,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241534184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:50,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:50,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:09:50,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643833981] [2024-11-28 04:09:50,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:50,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:09:50,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:50,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:09:50,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:50,161 INFO L87 Difference]: Start difference. First operand 614 states and 833 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:09:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:50,506 INFO L93 Difference]: Finished difference Result 614 states and 833 transitions. [2024-11-28 04:09:50,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:09:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 90 [2024-11-28 04:09:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:50,509 INFO L225 Difference]: With dead ends: 614 [2024-11-28 04:09:50,509 INFO L226 Difference]: Without dead ends: 608 [2024-11-28 04:09:50,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:50,510 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:50,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 183 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:50,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-28 04:09:50,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 535. [2024-11-28 04:09:50,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 442 states have (on average 1.339366515837104) internal successors, (592), 480 states have internal predecessors, (592), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:09:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 696 transitions. [2024-11-28 04:09:50,576 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 696 transitions. Word has length 90 [2024-11-28 04:09:50,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:50,577 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 696 transitions. [2024-11-28 04:09:50,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:09:50,577 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 696 transitions. [2024-11-28 04:09:50,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:09:50,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:50,579 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:50,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:09:50,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:50,783 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:50,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash -386687648, now seen corresponding path program 1 times [2024-11-28 04:09:50,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:50,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930681423] [2024-11-28 04:09:50,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:50,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075972097] [2024-11-28 04:09:50,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:50,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:50,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:50,804 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:50,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:09:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:50,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:09:50,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 04:09:51,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:52,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:52,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930681423] [2024-11-28 04:09:52,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:52,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075972097] [2024-11-28 04:09:52,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075972097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:52,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:52,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:09:52,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3477173] [2024-11-28 04:09:52,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:52,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:09:52,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:52,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:09:52,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:52,005 INFO L87 Difference]: Start difference. First operand 535 states and 696 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:09:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:52,557 INFO L93 Difference]: Finished difference Result 639 states and 838 transitions. [2024-11-28 04:09:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:09:52,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 91 [2024-11-28 04:09:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:52,559 INFO L225 Difference]: With dead ends: 639 [2024-11-28 04:09:52,560 INFO L226 Difference]: Without dead ends: 637 [2024-11-28 04:09:52,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:52,560 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 269 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:52,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 276 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:09:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-28 04:09:52,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 589. [2024-11-28 04:09:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 490 states have (on average 1.3653061224489795) internal successors, (669), 528 states have internal predecessors, (669), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 04:09:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 785 transitions. [2024-11-28 04:09:52,635 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 785 transitions. Word has length 91 [2024-11-28 04:09:52,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:52,636 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 785 transitions. [2024-11-28 04:09:52,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:09:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 785 transitions. [2024-11-28 04:09:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:09:52,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:52,637 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:52,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:09:52,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:52,838 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:52,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 897584882, now seen corresponding path program 1 times [2024-11-28 04:09:52,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:52,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732569961] [2024-11-28 04:09:52,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:52,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:52,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975892451] [2024-11-28 04:09:52,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:52,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:52,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:52,860 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:52,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:09:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:52,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:09:52,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:09:53,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:09:54,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:54,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732569961] [2024-11-28 04:09:54,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:54,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975892451] [2024-11-28 04:09:54,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975892451] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:54,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:09:54,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 04:09:54,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230332762] [2024-11-28 04:09:54,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:54,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:09:54,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:54,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:09:54,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:09:54,202 INFO L87 Difference]: Start difference. First operand 589 states and 785 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:09:56,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:56,531 INFO L93 Difference]: Finished difference Result 662 states and 883 transitions. [2024-11-28 04:09:56,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:09:56,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 92 [2024-11-28 04:09:56,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:56,534 INFO L225 Difference]: With dead ends: 662 [2024-11-28 04:09:56,534 INFO L226 Difference]: Without dead ends: 631 [2024-11-28 04:09:56,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:09:56,536 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 668 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:56,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 183 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:09:56,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-28 04:09:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 610. [2024-11-28 04:09:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 511 states have (on average 1.3718199608610568) internal successors, (701), 548 states have internal predecessors, (701), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:09:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 819 transitions. [2024-11-28 04:09:56,625 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 819 transitions. Word has length 92 [2024-11-28 04:09:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:56,626 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 819 transitions. [2024-11-28 04:09:56,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:09:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 819 transitions. [2024-11-28 04:09:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:09:56,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:56,627 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:56,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:09:56,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:09:56,830 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:09:56,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:56,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2055327650, now seen corresponding path program 1 times [2024-11-28 04:09:56,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:56,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045850571] [2024-11-28 04:09:56,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:56,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:56,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913768510] [2024-11-28 04:09:56,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:56,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:56,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:56,853 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:56,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:09:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:56,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:09:56,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:09:57,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:09:59,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:59,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045850571] [2024-11-28 04:09:59,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:59,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913768510] [2024-11-28 04:09:59,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913768510] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:59,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:09:59,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2024-11-28 04:09:59,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096514971] [2024-11-28 04:09:59,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:59,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:09:59,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:59,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:09:59,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:09:59,181 INFO L87 Difference]: Start difference. First operand 610 states and 819 transitions. Second operand has 19 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 10 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-28 04:10:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:04,299 INFO L93 Difference]: Finished difference Result 765 states and 1046 transitions. [2024-11-28 04:10:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:10:04,300 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 10 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) Word has length 93 [2024-11-28 04:10:04,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:04,302 INFO L225 Difference]: With dead ends: 765 [2024-11-28 04:10:04,302 INFO L226 Difference]: Without dead ends: 763 [2024-11-28 04:10:04,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:10:04,304 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 786 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:04,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 416 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:10:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-28 04:10:04,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 676. [2024-11-28 04:10:04,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 572 states have (on average 1.3881118881118881) internal successors, (794), 608 states have internal predecessors, (794), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 04:10:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 924 transitions. [2024-11-28 04:10:04,376 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 924 transitions. Word has length 93 [2024-11-28 04:10:04,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:04,377 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 924 transitions. [2024-11-28 04:10:04,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 10 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-28 04:10:04,377 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 924 transitions. [2024-11-28 04:10:04,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:10:04,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:04,378 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:04,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:04,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:10:04,582 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:04,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1317502574, now seen corresponding path program 1 times [2024-11-28 04:10:04,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:04,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655473127] [2024-11-28 04:10:04,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:04,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:04,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:04,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655473127] [2024-11-28 04:10:04,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655473127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:04,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124925695] [2024-11-28 04:10:04,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:04,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:04,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:04,737 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:04,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:10:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:04,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:10:04,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:05,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:05,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124925695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:05,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:05,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 04:10:05,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367918554] [2024-11-28 04:10:05,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:05,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:10:05,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:05,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:10:05,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:10:05,395 INFO L87 Difference]: Start difference. First operand 676 states and 924 transitions. Second operand has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-28 04:10:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:07,008 INFO L93 Difference]: Finished difference Result 1237 states and 1687 transitions. [2024-11-28 04:10:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:10:07,009 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 102 [2024-11-28 04:10:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:07,014 INFO L225 Difference]: With dead ends: 1237 [2024-11-28 04:10:07,014 INFO L226 Difference]: Without dead ends: 1236 [2024-11-28 04:10:07,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:10:07,016 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 667 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:07,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 617 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:10:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2024-11-28 04:10:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 930. [2024-11-28 04:10:07,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 800 states have (on average 1.44625) internal successors, (1157), 836 states have internal predecessors, (1157), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:10:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1339 transitions. [2024-11-28 04:10:07,160 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1339 transitions. Word has length 102 [2024-11-28 04:10:07,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:07,164 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1339 transitions. [2024-11-28 04:10:07,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-28 04:10:07,165 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1339 transitions. [2024-11-28 04:10:07,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:10:07,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:07,166 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:07,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:07,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:10:07,367 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:07,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1383490030, now seen corresponding path program 1 times [2024-11-28 04:10:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:07,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587286514] [2024-11-28 04:10:07,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:07,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:07,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:07,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587286514] [2024-11-28 04:10:07,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587286514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:07,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660563498] [2024-11-28 04:10:07,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:07,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:07,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:07,508 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:07,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:10:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:07,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:10:07,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:07,858 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:07,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:08,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660563498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:08,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:08,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:10:08,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793365298] [2024-11-28 04:10:08,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:08,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:10:08,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:08,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:10:08,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:10:08,108 INFO L87 Difference]: Start difference. First operand 930 states and 1339 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 14 states have internal predecessors, (160), 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 04:10:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:09,483 INFO L93 Difference]: Finished difference Result 1212 states and 1694 transitions. [2024-11-28 04:10:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 04:10:09,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 14 states have internal predecessors, (160), 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 102 [2024-11-28 04:10:09,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:09,489 INFO L225 Difference]: With dead ends: 1212 [2024-11-28 04:10:09,489 INFO L226 Difference]: Without dead ends: 1211 [2024-11-28 04:10:09,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=572, Invalid=1498, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:10:09,491 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 1230 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:09,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 563 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:10:09,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-28 04:10:09,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 995. [2024-11-28 04:10:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 858 states have (on average 1.4487179487179487) internal successors, (1243), 894 states have internal predecessors, (1243), 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 04:10:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1439 transitions. [2024-11-28 04:10:09,644 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1439 transitions. Word has length 102 [2024-11-28 04:10:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:09,644 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1439 transitions. [2024-11-28 04:10:09,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 14 states have internal predecessors, (160), 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 04:10:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1439 transitions. [2024-11-28 04:10:09,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:10:09,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:09,647 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 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] [2024-11-28 04:10:09,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:09,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:10:09,852 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:09,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 2107524241, now seen corresponding path program 1 times [2024-11-28 04:10:09,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:09,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063703463] [2024-11-28 04:10:09,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:10,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:10,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063703463] [2024-11-28 04:10:10,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063703463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:10,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770872533] [2024-11-28 04:10:10,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:10,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:10,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:10,012 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:10,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:10:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:10,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:10:10,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:10,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:10,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770872533] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:10,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:10,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 04:10:10,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214455597] [2024-11-28 04:10:10,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:10,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:10:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:10,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:10:10,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:10:10,571 INFO L87 Difference]: Start difference. First operand 995 states and 1439 transitions. Second operand has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 8 states have internal predecessors, (159), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:10:11,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:11,214 INFO L93 Difference]: Finished difference Result 1531 states and 2218 transitions. [2024-11-28 04:10:11,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:10:11,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 8 states have internal predecessors, (159), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 103 [2024-11-28 04:10:11,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:11,220 INFO L225 Difference]: With dead ends: 1531 [2024-11-28 04:10:11,221 INFO L226 Difference]: Without dead ends: 1529 [2024-11-28 04:10:11,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:10:11,222 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 362 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:11,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 244 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:11,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-28 04:10:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1261. [2024-11-28 04:10:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1097 states have (on average 1.4612579762989972) internal successors, (1603), 1133 states have internal predecessors, (1603), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 04:10:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1853 transitions. [2024-11-28 04:10:11,408 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1853 transitions. Word has length 103 [2024-11-28 04:10:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:11,408 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 1853 transitions. [2024-11-28 04:10:11,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 8 states have internal predecessors, (159), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:10:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1853 transitions. [2024-11-28 04:10:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 04:10:11,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:11,410 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:10:11,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:11,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:10:11,611 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:11,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:11,611 INFO L85 PathProgramCache]: Analyzing trace with hash 631255205, now seen corresponding path program 1 times [2024-11-28 04:10:11,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:11,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636928218] [2024-11-28 04:10:11,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:11,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:11,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:11,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636928218] [2024-11-28 04:10:11,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636928218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:11,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853730062] [2024-11-28 04:10:11,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:11,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:11,741 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:11,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:10:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:11,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:10:11,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:12,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:12,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853730062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:12,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:12,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 04:10:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024370512] [2024-11-28 04:10:12,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:12,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:10:12,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:12,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:10:12,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:10:12,310 INFO L87 Difference]: Start difference. First operand 1261 states and 1853 transitions. Second operand has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:10:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:13,097 INFO L93 Difference]: Finished difference Result 1798 states and 2645 transitions. [2024-11-28 04:10:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:10:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 105 [2024-11-28 04:10:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:13,106 INFO L225 Difference]: With dead ends: 1798 [2024-11-28 04:10:13,106 INFO L226 Difference]: Without dead ends: 1796 [2024-11-28 04:10:13,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:10:13,108 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 322 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:13,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 289 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-11-28 04:10:13,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1449. [2024-11-28 04:10:13,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1266 states have (on average 1.4565560821484993) internal successors, (1844), 1302 states have internal predecessors, (1844), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 04:10:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2132 transitions. [2024-11-28 04:10:13,302 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2132 transitions. Word has length 105 [2024-11-28 04:10:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:13,303 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 2132 transitions. [2024-11-28 04:10:13,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:10:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2132 transitions. [2024-11-28 04:10:13,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:10:13,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:13,304 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:13,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:10:13,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:10:13,505 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:13,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:13,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1720305254, now seen corresponding path program 1 times [2024-11-28 04:10:13,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:13,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295089330] [2024-11-28 04:10:13,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:13,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:13,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837654527] [2024-11-28 04:10:13,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:13,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:13,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:13,540 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:13,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:10:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:13,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:10:13,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:14,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:14,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295089330] [2024-11-28 04:10:14,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837654527] [2024-11-28 04:10:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837654527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:14,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:14,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:10:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292504308] [2024-11-28 04:10:14,270 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:14,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:10:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:14,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:10:14,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:10:14,271 INFO L87 Difference]: Start difference. First operand 1449 states and 2132 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:10:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:15,314 INFO L93 Difference]: Finished difference Result 1547 states and 2265 transitions. [2024-11-28 04:10:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:10:15,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-11-28 04:10:15,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:15,322 INFO L225 Difference]: With dead ends: 1547 [2024-11-28 04:10:15,322 INFO L226 Difference]: Without dead ends: 1543 [2024-11-28 04:10:15,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:10:15,324 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 196 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:15,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 263 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:10:15,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-28 04:10:15,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1445. [2024-11-28 04:10:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1266 states have (on average 1.3996840442338072) internal successors, (1772), 1298 states have internal predecessors, (1772), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 04:10:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2060 transitions. [2024-11-28 04:10:15,526 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2060 transitions. Word has length 107 [2024-11-28 04:10:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:15,526 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 2060 transitions. [2024-11-28 04:10:15,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:10:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2060 transitions. [2024-11-28 04:10:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:10:15,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:15,528 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:15,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:15,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:10:15,728 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:15,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1789855272, now seen corresponding path program 1 times [2024-11-28 04:10:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403356145] [2024-11-28 04:10:15,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:15,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089976225] [2024-11-28 04:10:15,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:15,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:15,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:15,756 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:15,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:10:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:15,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:10:15,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:16,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:16,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:16,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403356145] [2024-11-28 04:10:16,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:16,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089976225] [2024-11-28 04:10:16,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089976225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:16,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:16,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:10:16,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986886999] [2024-11-28 04:10:16,560 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:16,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:10:16,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:16,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:10:16,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:10:16,561 INFO L87 Difference]: Start difference. First operand 1445 states and 2060 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:10:17,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:17,210 INFO L93 Difference]: Finished difference Result 1503 states and 2131 transitions. [2024-11-28 04:10:17,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:10:17,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2024-11-28 04:10:17,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:17,217 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 04:10:17,217 INFO L226 Difference]: Without dead ends: 1499 [2024-11-28 04:10:17,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:10:17,218 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 143 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:17,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 154 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-11-28 04:10:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1453. [2024-11-28 04:10:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1273 states have (on average 1.4006284367635506) internal successors, (1783), 1305 states have internal predecessors, (1783), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-28 04:10:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2073 transitions. [2024-11-28 04:10:17,411 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2073 transitions. Word has length 108 [2024-11-28 04:10:17,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:17,412 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 2073 transitions. [2024-11-28 04:10:17,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:10:17,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2073 transitions. [2024-11-28 04:10:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:10:17,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:17,413 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:17,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:10:17,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:17,614 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:17,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1406392500, now seen corresponding path program 2 times [2024-11-28 04:10:17,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:17,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136264514] [2024-11-28 04:10:17,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:17,644 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:17,644 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:10:17,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184662644] [2024-11-28 04:10:17,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:17,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:17,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:17,648 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:17,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:10:17,739 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:17,740 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:17,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:10:17,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 15 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:10:18,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:18,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:18,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136264514] [2024-11-28 04:10:18,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:18,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184662644] [2024-11-28 04:10:18,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184662644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:18,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:10:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962696404] [2024-11-28 04:10:18,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:18,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:10:18,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:18,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:10:18,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:10:18,790 INFO L87 Difference]: Start difference. First operand 1453 states and 2073 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 5 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:10:20,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:20,178 INFO L93 Difference]: Finished difference Result 1524 states and 2159 transitions. [2024-11-28 04:10:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:10:20,178 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 5 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 108 [2024-11-28 04:10:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:20,183 INFO L225 Difference]: With dead ends: 1524 [2024-11-28 04:10:20,183 INFO L226 Difference]: Without dead ends: 1522 [2024-11-28 04:10:20,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:10:20,184 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 366 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:20,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 288 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:10:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2024-11-28 04:10:20,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1469. [2024-11-28 04:10:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1287 states have (on average 1.3978243978243978) internal successors, (1799), 1319 states have internal predecessors, (1799), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:10:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2093 transitions. [2024-11-28 04:10:20,403 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2093 transitions. Word has length 108 [2024-11-28 04:10:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:20,404 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 2093 transitions. [2024-11-28 04:10:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 5 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:10:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2093 transitions. [2024-11-28 04:10:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:10:20,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:20,405 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:20,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:10:20,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:20,610 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:20,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:20,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2063996326, now seen corresponding path program 1 times [2024-11-28 04:10:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:20,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951813162] [2024-11-28 04:10:20,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:20,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:20,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419964927] [2024-11-28 04:10:20,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:20,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:20,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:20,639 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:20,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:10:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:20,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:10:20,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:21,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:21,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:21,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951813162] [2024-11-28 04:10:21,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:21,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419964927] [2024-11-28 04:10:21,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419964927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:21,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:21,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:10:21,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990348281] [2024-11-28 04:10:21,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:21,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:10:21,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:21,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:10:21,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:10:21,544 INFO L87 Difference]: Start difference. First operand 1469 states and 2093 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:10:22,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:22,183 INFO L93 Difference]: Finished difference Result 1504 states and 2133 transitions. [2024-11-28 04:10:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:10:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 110 [2024-11-28 04:10:22,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:22,189 INFO L225 Difference]: With dead ends: 1504 [2024-11-28 04:10:22,190 INFO L226 Difference]: Without dead ends: 1502 [2024-11-28 04:10:22,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:10:22,191 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 119 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:22,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 188 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-28 04:10:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1469. [2024-11-28 04:10:22,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1287 states have (on average 1.3962703962703962) internal successors, (1797), 1319 states have internal predecessors, (1797), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:10:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2091 transitions. [2024-11-28 04:10:22,319 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2091 transitions. Word has length 110 [2024-11-28 04:10:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:22,319 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 2091 transitions. [2024-11-28 04:10:22,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:10:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2091 transitions. [2024-11-28 04:10:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:10:22,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:22,321 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:22,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:22,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 04:10:22,521 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:22,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:22,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1371504074, now seen corresponding path program 2 times [2024-11-28 04:10:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:22,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321454197] [2024-11-28 04:10:22,522 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:22,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:22,541 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:22,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:10:22,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584923748] [2024-11-28 04:10:22,542 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:22,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:22,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:22,549 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:22,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:10:22,627 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:22,628 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:22,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:10:22,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:23,197 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:23,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:24,407 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:24,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:24,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321454197] [2024-11-28 04:10:24,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:24,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584923748] [2024-11-28 04:10:24,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584923748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:24,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:10:24,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-28 04:10:24,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260616030] [2024-11-28 04:10:24,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:24,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:10:24,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:24,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:10:24,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:10:24,409 INFO L87 Difference]: Start difference. First operand 1469 states and 2091 transitions. Second operand has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:10:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:28,016 INFO L93 Difference]: Finished difference Result 1547 states and 2187 transitions. [2024-11-28 04:10:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:10:28,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 110 [2024-11-28 04:10:28,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:28,023 INFO L225 Difference]: With dead ends: 1547 [2024-11-28 04:10:28,023 INFO L226 Difference]: Without dead ends: 1545 [2024-11-28 04:10:28,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:10:28,025 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 338 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:28,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 447 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:10:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-28 04:10:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1478. [2024-11-28 04:10:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1297 states have (on average 1.3901310717039321) internal successors, (1803), 1328 states have internal predecessors, (1803), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:10:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2097 transitions. [2024-11-28 04:10:28,210 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2097 transitions. Word has length 110 [2024-11-28 04:10:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:28,210 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 2097 transitions. [2024-11-28 04:10:28,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:10:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2097 transitions. [2024-11-28 04:10:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:10:28,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:28,212 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:28,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:28,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:28,416 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:28,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:28,418 INFO L85 PathProgramCache]: Analyzing trace with hash 440623390, now seen corresponding path program 1 times [2024-11-28 04:10:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:28,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718486564] [2024-11-28 04:10:28,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:28,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:28,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945431430] [2024-11-28 04:10:28,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:28,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:28,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:28,441 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:28,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:10:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:28,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:10:28,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:29,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-28 04:10:29,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718486564] [2024-11-28 04:10:29,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945431430] [2024-11-28 04:10:29,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945431430] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:29,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:29,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:10:29,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938653444] [2024-11-28 04:10:29,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:10:29,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:10:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:29,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:10:29,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:10:29,478 INFO L87 Difference]: Start difference. First operand 1478 states and 2097 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:10:30,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:30,288 INFO L93 Difference]: Finished difference Result 1478 states and 2097 transitions. [2024-11-28 04:10:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:10:30,289 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 111 [2024-11-28 04:10:30,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:30,294 INFO L225 Difference]: With dead ends: 1478 [2024-11-28 04:10:30,294 INFO L226 Difference]: Without dead ends: 1477 [2024-11-28 04:10:30,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:10:30,296 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 82 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:30,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 132 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:10:30,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-28 04:10:30,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1477. [2024-11-28 04:10:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1297 states have (on average 1.3646877409406322) internal successors, (1770), 1327 states have internal predecessors, (1770), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:10:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2064 transitions. [2024-11-28 04:10:30,540 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2064 transitions. Word has length 111 [2024-11-28 04:10:30,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:30,541 INFO L471 AbstractCegarLoop]: Abstraction has 1477 states and 2064 transitions. [2024-11-28 04:10:30,541 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:10:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2064 transitions. [2024-11-28 04:10:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:10:30,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:30,542 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 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 04:10:30,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:10:30,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:10:30,746 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:30,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:30,747 INFO L85 PathProgramCache]: Analyzing trace with hash 774423260, now seen corresponding path program 1 times [2024-11-28 04:10:30,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:30,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042967093] [2024-11-28 04:10:30,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:30,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:30,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803800407] [2024-11-28 04:10:30,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:30,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:30,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:30,770 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:30,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:10:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:30,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:10:30,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:10:31,451 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-28 04:10:31,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042967093] [2024-11-28 04:10:31,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803800407] [2024-11-28 04:10:31,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803800407] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:31,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:31,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:10:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702636720] [2024-11-28 04:10:31,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:10:31,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:10:31,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:31,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:10:31,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:10:31,870 INFO L87 Difference]: Start difference. First operand 1477 states and 2064 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:10:33,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:33,590 INFO L93 Difference]: Finished difference Result 1477 states and 2064 transitions. [2024-11-28 04:10:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:10:33,591 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2024-11-28 04:10:33,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:33,596 INFO L225 Difference]: With dead ends: 1477 [2024-11-28 04:10:33,597 INFO L226 Difference]: Without dead ends: 1474 [2024-11-28 04:10:33,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:10:33,598 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 82 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:33,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 132 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:10:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2024-11-28 04:10:33,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1471. [2024-11-28 04:10:33,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1294 states have (on average 1.3346213292117466) internal successors, (1727), 1321 states have internal predecessors, (1727), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:10:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2021 transitions. [2024-11-28 04:10:33,777 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2021 transitions. Word has length 112 [2024-11-28 04:10:33,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:33,777 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 2021 transitions. [2024-11-28 04:10:33,777 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:10:33,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2021 transitions. [2024-11-28 04:10:33,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:10:33,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:33,779 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:33,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:33,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:10:33,980 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:33,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:33,980 INFO L85 PathProgramCache]: Analyzing trace with hash -137235212, now seen corresponding path program 1 times [2024-11-28 04:10:33,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:33,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553360602] [2024-11-28 04:10:33,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:33,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:10:34,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:34,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553360602] [2024-11-28 04:10:34,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553360602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:34,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064789940] [2024-11-28 04:10:34,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:34,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:34,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:34,150 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:34,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:10:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:34,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:10:34,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:10:34,312 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:10:34,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064789940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:34,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:34,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 04:10:34,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639530602] [2024-11-28 04:10:34,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:34,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:10:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:34,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:10:34,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:10:34,493 INFO L87 Difference]: Start difference. First operand 1471 states and 2021 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:10:35,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:35,427 INFO L93 Difference]: Finished difference Result 1473 states and 2023 transitions. [2024-11-28 04:10:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:10:35,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 113 [2024-11-28 04:10:35,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:35,433 INFO L225 Difference]: With dead ends: 1473 [2024-11-28 04:10:35,433 INFO L226 Difference]: Without dead ends: 1472 [2024-11-28 04:10:35,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:10:35,435 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:35,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 165 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:10:35,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-11-28 04:10:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1470. [2024-11-28 04:10:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1294 states have (on average 1.329984544049459) internal successors, (1721), 1320 states have internal predecessors, (1721), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:10:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2015 transitions. [2024-11-28 04:10:35,585 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2015 transitions. Word has length 113 [2024-11-28 04:10:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:35,586 INFO L471 AbstractCegarLoop]: Abstraction has 1470 states and 2015 transitions. [2024-11-28 04:10:35,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:10:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2015 transitions. [2024-11-28 04:10:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 04:10:35,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:35,587 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:35,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:35,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:35,788 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:35,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:35,788 INFO L85 PathProgramCache]: Analyzing trace with hash 40675868, now seen corresponding path program 1 times [2024-11-28 04:10:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971731514] [2024-11-28 04:10:35,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:35,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:10:35,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:35,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971731514] [2024-11-28 04:10:35,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971731514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:10:35,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:10:35,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:10:35,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318806061] [2024-11-28 04:10:35,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:10:35,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:10:35,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:35,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:10:35,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:10:35,912 INFO L87 Difference]: Start difference. First operand 1470 states and 2015 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:10:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:37,073 INFO L93 Difference]: Finished difference Result 1503 states and 2046 transitions. [2024-11-28 04:10:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:10:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2024-11-28 04:10:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:37,076 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 04:10:37,076 INFO L226 Difference]: Without dead ends: 1502 [2024-11-28 04:10:37,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:10:37,078 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 132 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:37,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 207 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:10:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-28 04:10:37,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1458. [2024-11-28 04:10:37,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1284 states have (on average 1.3278816199376946) internal successors, (1705), 1309 states have internal predecessors, (1705), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-28 04:10:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1997 transitions. [2024-11-28 04:10:37,289 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1997 transitions. Word has length 114 [2024-11-28 04:10:37,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:37,289 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1997 transitions. [2024-11-28 04:10:37,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:10:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1997 transitions. [2024-11-28 04:10:37,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:10:37,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:37,290 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 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 04:10:37,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 04:10:37,291 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:37,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:37,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1402840306, now seen corresponding path program 1 times [2024-11-28 04:10:37,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:37,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449270465] [2024-11-28 04:10:37,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:37,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:37,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231516257] [2024-11-28 04:10:37,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:37,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:37,320 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:37,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:10:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:37,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:10:37,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:10:38,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:44,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:44,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449270465] [2024-11-28 04:10:44,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:44,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231516257] [2024-11-28 04:10:44,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231516257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:44,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:44,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:10:44,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738860619] [2024-11-28 04:10:44,245 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:44,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:10:44,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:44,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:10:44,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=129, Unknown=2, NotChecked=0, Total=182 [2024-11-28 04:10:44,246 INFO L87 Difference]: Start difference. First operand 1458 states and 1997 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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 04:10:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:45,640 INFO L93 Difference]: Finished difference Result 1576 states and 2143 transitions. [2024-11-28 04:10:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:10:45,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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 118 [2024-11-28 04:10:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:45,644 INFO L225 Difference]: With dead ends: 1576 [2024-11-28 04:10:45,644 INFO L226 Difference]: Without dead ends: 1574 [2024-11-28 04:10:45,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=72, Invalid=166, Unknown=2, NotChecked=0, Total=240 [2024-11-28 04:10:45,646 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 235 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:45,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 683 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:10:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-28 04:10:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1493. [2024-11-28 04:10:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1315 states have (on average 1.3277566539923955) internal successors, (1746), 1340 states have internal predecessors, (1746), 150 states have call successors, (150), 2 states have call predecessors, (150), 2 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-11-28 04:10:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2046 transitions. [2024-11-28 04:10:45,815 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2046 transitions. Word has length 118 [2024-11-28 04:10:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:45,815 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 2046 transitions. [2024-11-28 04:10:45,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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 04:10:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2046 transitions. [2024-11-28 04:10:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:10:45,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:45,816 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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 04:10:45,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-28 04:10:46,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:46,017 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:46,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1856933120, now seen corresponding path program 2 times [2024-11-28 04:10:46,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:46,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196422352] [2024-11-28 04:10:46,018 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:46,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:46,036 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:46,036 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:10:46,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369622360] [2024-11-28 04:10:46,037 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:46,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:46,039 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:46,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:10:46,123 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:46,123 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:46,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:10:46,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:10:46,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:49,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:49,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196422352] [2024-11-28 04:10:49,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:49,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369622360] [2024-11-28 04:10:49,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369622360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:49,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:49,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:10:49,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286964668] [2024-11-28 04:10:49,887 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:49,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:10:49,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:49,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:10:49,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:10:49,888 INFO L87 Difference]: Start difference. First operand 1493 states and 2046 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:10:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:50,659 INFO L93 Difference]: Finished difference Result 1913 states and 2617 transitions. [2024-11-28 04:10:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:10:50,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 118 [2024-11-28 04:10:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:50,664 INFO L225 Difference]: With dead ends: 1913 [2024-11-28 04:10:50,664 INFO L226 Difference]: Without dead ends: 1911 [2024-11-28 04:10:50,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=35, Invalid=74, Unknown=1, NotChecked=0, Total=110 [2024-11-28 04:10:50,665 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 328 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:50,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 357 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2024-11-28 04:10:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1683. [2024-11-28 04:10:50,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1483 states have (on average 1.3331085637221847) internal successors, (1977), 1508 states have internal predecessors, (1977), 172 states have call successors, (172), 2 states have call predecessors, (172), 2 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2024-11-28 04:10:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2321 transitions. [2024-11-28 04:10:50,888 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2321 transitions. Word has length 118 [2024-11-28 04:10:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:50,888 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2321 transitions. [2024-11-28 04:10:50,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:10:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2321 transitions. [2024-11-28 04:10:50,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:10:50,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:50,889 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 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 04:10:50,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:51,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:10:51,090 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:51,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:51,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1983828591, now seen corresponding path program 1 times [2024-11-28 04:10:51,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:51,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625294249] [2024-11-28 04:10:51,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:51,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:51,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797438979] [2024-11-28 04:10:51,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:51,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:51,111 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:51,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:10:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:51,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:10:51,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:10:52,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:52,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625294249] [2024-11-28 04:10:52,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797438979] [2024-11-28 04:10:52,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797438979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:52,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:52,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:10:52,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622294378] [2024-11-28 04:10:52,563 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:52,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:10:52,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:52,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:10:52,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:10:52,564 INFO L87 Difference]: Start difference. First operand 1683 states and 2321 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 04:10:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:54,409 INFO L93 Difference]: Finished difference Result 1793 states and 2460 transitions. [2024-11-28 04:10:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:10:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 121 [2024-11-28 04:10:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:54,413 INFO L225 Difference]: With dead ends: 1793 [2024-11-28 04:10:54,413 INFO L226 Difference]: Without dead ends: 1791 [2024-11-28 04:10:54,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:10:54,414 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 220 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:54,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 551 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:10:54,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-11-28 04:10:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1712. [2024-11-28 04:10:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1509 states have (on average 1.3326706428098078) internal successors, (2011), 1534 states have internal predecessors, (2011), 175 states have call successors, (175), 2 states have call predecessors, (175), 2 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2024-11-28 04:10:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2361 transitions. [2024-11-28 04:10:54,736 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2361 transitions. Word has length 121 [2024-11-28 04:10:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:54,736 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2361 transitions. [2024-11-28 04:10:54,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 04:10:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2361 transitions. [2024-11-28 04:10:54,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:10:54,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:54,738 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 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 04:10:54,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 04:10:54,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:54,939 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:54,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:54,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1369144246, now seen corresponding path program 1 times [2024-11-28 04:10:54,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:54,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207863336] [2024-11-28 04:10:54,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:54,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:54,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084907080] [2024-11-28 04:10:54,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:54,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:54,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:54,963 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:54,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:10:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:55,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:10:55,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 23 proven. 24 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:10:55,689 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:56,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207863336] [2024-11-28 04:10:56,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084907080] [2024-11-28 04:10:56,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084907080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:56,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:56,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:10:56,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067210888] [2024-11-28 04:10:56,335 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:56,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:10:56,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:56,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:10:56,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:10:56,336 INFO L87 Difference]: Start difference. First operand 1712 states and 2361 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:10:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:58,521 INFO L93 Difference]: Finished difference Result 1958 states and 2695 transitions. [2024-11-28 04:10:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:10:58,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 122 [2024-11-28 04:10:58,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:58,525 INFO L225 Difference]: With dead ends: 1958 [2024-11-28 04:10:58,525 INFO L226 Difference]: Without dead ends: 1955 [2024-11-28 04:10:58,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:10:58,526 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 264 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:58,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 575 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:10:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2024-11-28 04:10:58,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1731. [2024-11-28 04:10:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1527 states have (on average 1.3248199083169614) internal successors, (2023), 1552 states have internal predecessors, (2023), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:10:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2375 transitions. [2024-11-28 04:10:58,846 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2375 transitions. Word has length 122 [2024-11-28 04:10:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:58,846 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2375 transitions. [2024-11-28 04:10:58,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:10:58,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2375 transitions. [2024-11-28 04:10:58,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:10:58,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:58,848 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:58,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:59,052 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:10:59,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash -506201263, now seen corresponding path program 1 times [2024-11-28 04:10:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988236255] [2024-11-28 04:10:59,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:59,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666450726] [2024-11-28 04:10:59,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:59,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:59,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:59,079 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:59,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:10:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:59,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:10:59,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:11:00,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:00,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:00,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988236255] [2024-11-28 04:11:00,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:00,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666450726] [2024-11-28 04:11:00,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666450726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:00,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:00,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:11:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415695996] [2024-11-28 04:11:00,329 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:00,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:11:00,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:00,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:11:00,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:11:00,330 INFO L87 Difference]: Start difference. First operand 1731 states and 2375 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 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 04:11:03,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:03,222 INFO L93 Difference]: Finished difference Result 2733 states and 3807 transitions. [2024-11-28 04:11:03,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:11:03,223 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 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 123 [2024-11-28 04:11:03,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:03,232 INFO L225 Difference]: With dead ends: 2733 [2024-11-28 04:11:03,232 INFO L226 Difference]: Without dead ends: 2728 [2024-11-28 04:11:03,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:11:03,235 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 792 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:03,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 509 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:11:03,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2024-11-28 04:11:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2326. [2024-11-28 04:11:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 2060 states have (on average 1.3359223300970873) internal successors, (2752), 2085 states have internal predecessors, (2752), 238 states have call successors, (238), 2 states have call predecessors, (238), 2 states have return successors, (238), 238 states have call predecessors, (238), 238 states have call successors, (238) [2024-11-28 04:11:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3228 transitions. [2024-11-28 04:11:03,639 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3228 transitions. Word has length 123 [2024-11-28 04:11:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:03,639 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3228 transitions. [2024-11-28 04:11:03,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 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 04:11:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3228 transitions. [2024-11-28 04:11:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:11:03,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:03,640 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:03,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 04:11:03,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:03,841 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:03,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:03,841 INFO L85 PathProgramCache]: Analyzing trace with hash -634075645, now seen corresponding path program 1 times [2024-11-28 04:11:03,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:03,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648437758] [2024-11-28 04:11:03,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:03,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:03,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200944969] [2024-11-28 04:11:03,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:03,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:03,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:03,869 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:03,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:11:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:03,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:11:03,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 38 proven. 26 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:11:04,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:04,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:04,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648437758] [2024-11-28 04:11:04,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:04,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200944969] [2024-11-28 04:11:04,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200944969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:04,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:04,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:11:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978077324] [2024-11-28 04:11:04,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:04,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:11:04,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:04,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:11:04,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:04,556 INFO L87 Difference]: Start difference. First operand 2326 states and 3228 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:11:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:06,240 INFO L93 Difference]: Finished difference Result 2882 states and 3974 transitions. [2024-11-28 04:11:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:11:06,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 123 [2024-11-28 04:11:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:06,250 INFO L225 Difference]: With dead ends: 2882 [2024-11-28 04:11:06,250 INFO L226 Difference]: Without dead ends: 2878 [2024-11-28 04:11:06,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:11:06,252 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 268 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:06,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 497 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:11:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2024-11-28 04:11:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2290. [2024-11-28 04:11:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 2029 states have (on average 1.322326269098078) internal successors, (2683), 2054 states have internal predecessors, (2683), 233 states have call successors, (233), 2 states have call predecessors, (233), 2 states have return successors, (233), 233 states have call predecessors, (233), 233 states have call successors, (233) [2024-11-28 04:11:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3149 transitions. [2024-11-28 04:11:06,716 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3149 transitions. Word has length 123 [2024-11-28 04:11:06,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:06,717 INFO L471 AbstractCegarLoop]: Abstraction has 2290 states and 3149 transitions. [2024-11-28 04:11:06,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:11:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3149 transitions. [2024-11-28 04:11:06,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:11:06,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:06,719 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:06,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 04:11:06,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:06,922 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:06,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:06,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1628739422, now seen corresponding path program 2 times [2024-11-28 04:11:06,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:06,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488120496] [2024-11-28 04:11:06,923 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:06,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:06,943 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:06,943 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:06,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617451418] [2024-11-28 04:11:06,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:06,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:06,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:06,952 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:06,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:11:07,037 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:07,037 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:07,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:11:07,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 04:11:08,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:08,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488120496] [2024-11-28 04:11:08,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:08,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617451418] [2024-11-28 04:11:08,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617451418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:08,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:08,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:11:08,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456998615] [2024-11-28 04:11:08,344 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:08,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:11:08,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:08,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:11:08,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:11:08,345 INFO L87 Difference]: Start difference. First operand 2290 states and 3149 transitions. Second operand has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:11:10,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:10,055 INFO L93 Difference]: Finished difference Result 2513 states and 3432 transitions. [2024-11-28 04:11:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:11:10,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 129 [2024-11-28 04:11:10,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:10,063 INFO L225 Difference]: With dead ends: 2513 [2024-11-28 04:11:10,063 INFO L226 Difference]: Without dead ends: 2511 [2024-11-28 04:11:10,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:11:10,065 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 207 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:10,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 507 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:11:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-28 04:11:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2420. [2024-11-28 04:11:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2146 states have (on average 1.3196644920782852) internal successors, (2832), 2171 states have internal predecessors, (2832), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2024-11-28 04:11:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3324 transitions. [2024-11-28 04:11:10,533 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3324 transitions. Word has length 129 [2024-11-28 04:11:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:10,533 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3324 transitions. [2024-11-28 04:11:10,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:11:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3324 transitions. [2024-11-28 04:11:10,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:11:10,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:10,535 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:10,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:10,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-28 04:11:10,736 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:10,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:10,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1109517780, now seen corresponding path program 1 times [2024-11-28 04:11:10,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:10,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475223191] [2024-11-28 04:11:10,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:10,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:10,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1588114278] [2024-11-28 04:11:10,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:10,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:10,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:10,759 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:10,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:11:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:10,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:11:10,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 04:11:11,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:15,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:15,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475223191] [2024-11-28 04:11:15,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:15,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588114278] [2024-11-28 04:11:15,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588114278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:15,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:15,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:11:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269457387] [2024-11-28 04:11:15,068 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:15,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:11:15,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:15,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:11:15,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2024-11-28 04:11:15,069 INFO L87 Difference]: Start difference. First operand 2420 states and 3324 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:11:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:16,429 INFO L93 Difference]: Finished difference Result 2520 states and 3444 transitions. [2024-11-28 04:11:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:11:16,430 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 129 [2024-11-28 04:11:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:16,436 INFO L225 Difference]: With dead ends: 2520 [2024-11-28 04:11:16,437 INFO L226 Difference]: Without dead ends: 2518 [2024-11-28 04:11:16,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=62, Invalid=147, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:11:16,438 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 240 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:16,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 633 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:11:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2024-11-28 04:11:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2471. [2024-11-28 04:11:16,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2191 states have (on average 1.3185759926973986) internal successors, (2889), 2216 states have internal predecessors, (2889), 252 states have call successors, (252), 2 states have call predecessors, (252), 2 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-28 04:11:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3393 transitions. [2024-11-28 04:11:16,945 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3393 transitions. Word has length 129 [2024-11-28 04:11:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:16,945 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3393 transitions. [2024-11-28 04:11:16,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:11:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3393 transitions. [2024-11-28 04:11:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:11:16,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:16,947 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:16,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-28 04:11:17,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-28 04:11:17,148 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:17,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash -424050502, now seen corresponding path program 1 times [2024-11-28 04:11:17,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:17,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748093159] [2024-11-28 04:11:17,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:17,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245740735] [2024-11-28 04:11:17,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:17,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:17,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:17,175 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:17,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:11:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:17,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:11:17,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:18,178 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 65 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 04:11:18,179 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:18,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748093159] [2024-11-28 04:11:18,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245740735] [2024-11-28 04:11:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245740735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:18,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:18,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:11:18,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435140739] [2024-11-28 04:11:18,521 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:18,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:11:18,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:18,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:11:18,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:11:18,522 INFO L87 Difference]: Start difference. First operand 2471 states and 3393 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:11:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:19,738 INFO L93 Difference]: Finished difference Result 2519 states and 3443 transitions. [2024-11-28 04:11:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:11:19,739 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2024-11-28 04:11:19,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:19,745 INFO L225 Difference]: With dead ends: 2519 [2024-11-28 04:11:19,745 INFO L226 Difference]: Without dead ends: 2517 [2024-11-28 04:11:19,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:11:19,747 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 215 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:19,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 496 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:11:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-28 04:11:20,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2439. [2024-11-28 04:11:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2163 states have (on average 1.3199260286638927) internal successors, (2855), 2188 states have internal predecessors, (2855), 248 states have call successors, (248), 2 states have call predecessors, (248), 2 states have return successors, (248), 248 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-28 04:11:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3351 transitions. [2024-11-28 04:11:20,235 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3351 transitions. Word has length 132 [2024-11-28 04:11:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:20,235 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3351 transitions. [2024-11-28 04:11:20,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:11:20,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3351 transitions. [2024-11-28 04:11:20,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:11:20,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:20,237 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 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 04:11:20,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:20,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-28 04:11:20,438 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:20,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:20,438 INFO L85 PathProgramCache]: Analyzing trace with hash -260663592, now seen corresponding path program 1 times [2024-11-28 04:11:20,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:20,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092755653] [2024-11-28 04:11:20,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:20,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:20,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006845356] [2024-11-28 04:11:20,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:20,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:20,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:20,459 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:20,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 04:11:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:20,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:11:20,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 04:11:21,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:21,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:21,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092755653] [2024-11-28 04:11:21,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:21,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006845356] [2024-11-28 04:11:21,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006845356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:21,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:21,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:11:21,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109505134] [2024-11-28 04:11:21,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:21,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:11:21,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:21,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:11:21,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:21,203 INFO L87 Difference]: Start difference. First operand 2439 states and 3351 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:11:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:23,039 INFO L93 Difference]: Finished difference Result 2621 states and 3562 transitions. [2024-11-28 04:11:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:11:23,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 133 [2024-11-28 04:11:23,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:23,045 INFO L225 Difference]: With dead ends: 2621 [2024-11-28 04:11:23,045 INFO L226 Difference]: Without dead ends: 2617 [2024-11-28 04:11:23,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:11:23,046 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 256 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:23,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 498 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:11:23,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2024-11-28 04:11:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2505. [2024-11-28 04:11:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2222 states have (on average 1.301980198019802) internal successors, (2893), 2247 states have internal predecessors, (2893), 255 states have call successors, (255), 2 states have call predecessors, (255), 2 states have return successors, (255), 255 states have call predecessors, (255), 255 states have call successors, (255) [2024-11-28 04:11:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3403 transitions. [2024-11-28 04:11:23,497 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3403 transitions. Word has length 133 [2024-11-28 04:11:23,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:23,497 INFO L471 AbstractCegarLoop]: Abstraction has 2505 states and 3403 transitions. [2024-11-28 04:11:23,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:11:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3403 transitions. [2024-11-28 04:11:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:11:23,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:23,499 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:23,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:23,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 04:11:23,700 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:23,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash -154854592, now seen corresponding path program 1 times [2024-11-28 04:11:23,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:23,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227037928] [2024-11-28 04:11:23,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:23,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 04:11:23,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:23,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227037928] [2024-11-28 04:11:23,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227037928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:23,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941628211] [2024-11-28 04:11:23,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:23,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:23,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,908 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 04:11:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:23,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:11:24,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 04:11:24,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 04:11:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941628211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:24,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:11:24,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-28 04:11:24,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070683059] [2024-11-28 04:11:24,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:24,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:11:24,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:24,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:11:24,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:11:24,335 INFO L87 Difference]: Start difference. First operand 2505 states and 3403 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:11:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:25,428 INFO L93 Difference]: Finished difference Result 2507 states and 3405 transitions. [2024-11-28 04:11:25,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:11:25,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2024-11-28 04:11:25,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:25,433 INFO L225 Difference]: With dead ends: 2507 [2024-11-28 04:11:25,433 INFO L226 Difference]: Without dead ends: 2468 [2024-11-28 04:11:25,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:11:25,435 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:25,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 133 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:11:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-28 04:11:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2433. [2024-11-28 04:11:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2433 states, 2159 states have (on average 1.3052339045854562) internal successors, (2818), 2182 states have internal predecessors, (2818), 248 states have call successors, (248), 2 states have call predecessors, (248), 2 states have return successors, (248), 248 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-28 04:11:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3314 transitions. [2024-11-28 04:11:25,813 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3314 transitions. Word has length 139 [2024-11-28 04:11:25,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:25,814 INFO L471 AbstractCegarLoop]: Abstraction has 2433 states and 3314 transitions. [2024-11-28 04:11:25,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:11:25,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3314 transitions. [2024-11-28 04:11:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:11:25,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:25,815 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:25,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-28 04:11:26,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 04:11:26,019 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:26,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1739618088, now seen corresponding path program 1 times [2024-11-28 04:11:26,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:26,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819351854] [2024-11-28 04:11:26,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:26,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819351854] [2024-11-28 04:11:26,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819351854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960205152] [2024-11-28 04:11:26,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:26,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:26,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:26,195 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:26,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 04:11:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:26,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:27,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960205152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:27,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:11:27,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:11:27,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288907321] [2024-11-28 04:11:27,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:27,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:11:27,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:27,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:11:27,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:27,060 INFO L87 Difference]: Start difference. First operand 2433 states and 3314 transitions. Second operand has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:11:28,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:28,480 INFO L93 Difference]: Finished difference Result 3459 states and 4665 transitions. [2024-11-28 04:11:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:11:28,481 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 145 [2024-11-28 04:11:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:28,487 INFO L225 Difference]: With dead ends: 3459 [2024-11-28 04:11:28,488 INFO L226 Difference]: Without dead ends: 3457 [2024-11-28 04:11:28,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:11:28,489 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 323 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:28,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 541 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:11:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2024-11-28 04:11:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3009. [2024-11-28 04:11:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3009 states, 2681 states have (on average 1.3066020141738157) internal successors, (3503), 2704 states have internal predecessors, (3503), 302 states have call successors, (302), 2 states have call predecessors, (302), 2 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-28 04:11:28,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 4107 transitions. [2024-11-28 04:11:28,896 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 4107 transitions. Word has length 145 [2024-11-28 04:11:28,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:28,896 INFO L471 AbstractCegarLoop]: Abstraction has 3009 states and 4107 transitions. [2024-11-28 04:11:28,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:11:28,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 4107 transitions. [2024-11-28 04:11:28,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:11:28,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:28,898 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:11:28,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:29,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 04:11:29,098 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:29,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:29,099 INFO L85 PathProgramCache]: Analyzing trace with hash 426680714, now seen corresponding path program 1 times [2024-11-28 04:11:29,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:29,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131888959] [2024-11-28 04:11:29,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:29,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:29,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131888959] [2024-11-28 04:11:29,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131888959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:29,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078973203] [2024-11-28 04:11:29,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:29,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:29,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:29,269 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:29,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 04:11:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:29,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:11:29,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:29,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:30,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078973203] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:30,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:11:30,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:11:30,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158502323] [2024-11-28 04:11:30,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:30,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:11:30,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:30,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:11:30,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:30,127 INFO L87 Difference]: Start difference. First operand 3009 states and 4107 transitions. Second operand has 11 states, 10 states have (on average 24.6) internal successors, (246), 11 states have internal predecessors, (246), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:11:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:31,636 INFO L93 Difference]: Finished difference Result 4041 states and 5453 transitions. [2024-11-28 04:11:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:11:31,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.6) internal successors, (246), 11 states have internal predecessors, (246), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 147 [2024-11-28 04:11:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:31,658 INFO L225 Difference]: With dead ends: 4041 [2024-11-28 04:11:31,658 INFO L226 Difference]: Without dead ends: 4039 [2024-11-28 04:11:31,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:11:31,659 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 472 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:31,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 480 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:11:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4039 states. [2024-11-28 04:11:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 3549. [2024-11-28 04:11:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3549 states, 3174 states have (on average 1.3078134845620668) internal successors, (4151), 3197 states have internal predecessors, (4151), 349 states have call successors, (349), 2 states have call predecessors, (349), 2 states have return successors, (349), 349 states have call predecessors, (349), 349 states have call successors, (349) [2024-11-28 04:11:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4849 transitions. [2024-11-28 04:11:32,117 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4849 transitions. Word has length 147 [2024-11-28 04:11:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:32,117 INFO L471 AbstractCegarLoop]: Abstraction has 3549 states and 4849 transitions. [2024-11-28 04:11:32,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.6) internal successors, (246), 11 states have internal predecessors, (246), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:11:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4849 transitions. [2024-11-28 04:11:32,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:11:32,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:32,119 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:11:32,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-28 04:11:32,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2024-11-28 04:11:32,320 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:32,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1627322996, now seen corresponding path program 3 times [2024-11-28 04:11:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:32,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872169629] [2024-11-28 04:11:32,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:32,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:32,363 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:11:32,363 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:32,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557370631] [2024-11-28 04:11:32,364 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:32,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:32,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:32,369 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:32,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 04:11:32,522 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:11:32,522 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:32,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:11:32,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:33,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:34,533 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:34,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:34,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872169629] [2024-11-28 04:11:34,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:34,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557370631] [2024-11-28 04:11:34,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557370631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:34,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:11:34,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-28 04:11:34,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376911599] [2024-11-28 04:11:34,534 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:34,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:11:34,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:34,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:11:34,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:11:34,535 INFO L87 Difference]: Start difference. First operand 3549 states and 4849 transitions. Second operand has 13 states, 12 states have (on average 14.25) internal successors, (171), 13 states have internal predecessors, (171), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:11:43,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:43,780 INFO L93 Difference]: Finished difference Result 3690 states and 5012 transitions. [2024-11-28 04:11:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:11:43,780 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.25) internal successors, (171), 13 states have internal predecessors, (171), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 149 [2024-11-28 04:11:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:43,787 INFO L225 Difference]: With dead ends: 3690 [2024-11-28 04:11:43,787 INFO L226 Difference]: Without dead ends: 3666 [2024-11-28 04:11:43,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:11:43,789 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 442 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:43,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 590 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-28 04:11:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2024-11-28 04:11:44,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3524. [2024-11-28 04:11:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3154 states have (on average 1.3065948002536463) internal successors, (4121), 3176 states have internal predecessors, (4121), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:11:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4811 transitions. [2024-11-28 04:11:44,464 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4811 transitions. Word has length 149 [2024-11-28 04:11:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:44,465 INFO L471 AbstractCegarLoop]: Abstraction has 3524 states and 4811 transitions. [2024-11-28 04:11:44,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.25) internal successors, (171), 13 states have internal predecessors, (171), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:11:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4811 transitions. [2024-11-28 04:11:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:11:44,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:44,481 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:11:44,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:44,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:44,685 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:44,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:44,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1568924776, now seen corresponding path program 4 times [2024-11-28 04:11:44,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:44,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863858544] [2024-11-28 04:11:44,686 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:11:44,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:44,713 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:11:44,713 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633728618] [2024-11-28 04:11:44,717 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:11:44,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:44,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:44,720 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:44,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 04:11:44,824 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:11:44,824 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:44,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:11:44,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:45,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:45,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:45,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863858544] [2024-11-28 04:11:45,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:45,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633728618] [2024-11-28 04:11:45,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633728618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:45,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:45,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:11:45,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253162474] [2024-11-28 04:11:45,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:45,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:11:45,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:45,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:11:45,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:11:45,890 INFO L87 Difference]: Start difference. First operand 3524 states and 4811 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:47,034 INFO L93 Difference]: Finished difference Result 3573 states and 4865 transitions. [2024-11-28 04:11:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:11:47,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:11:47,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:47,038 INFO L225 Difference]: With dead ends: 3573 [2024-11-28 04:11:47,038 INFO L226 Difference]: Without dead ends: 3572 [2024-11-28 04:11:47,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:11:47,039 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 106 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:47,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 433 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:11:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2024-11-28 04:11:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3524. [2024-11-28 04:11:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3154 states have (on average 1.3062777425491439) internal successors, (4120), 3176 states have internal predecessors, (4120), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:11:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4810 transitions. [2024-11-28 04:11:47,543 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4810 transitions. Word has length 149 [2024-11-28 04:11:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:47,543 INFO L471 AbstractCegarLoop]: Abstraction has 3524 states and 4810 transitions. [2024-11-28 04:11:47,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4810 transitions. [2024-11-28 04:11:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:11:47,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:47,545 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:11:47,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-28 04:11:47,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-11-28 04:11:47,746 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:47,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2018274572, now seen corresponding path program 5 times [2024-11-28 04:11:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:47,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965742814] [2024-11-28 04:11:47,746 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:11:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:47,779 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:11:47,779 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:47,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220484223] [2024-11-28 04:11:47,780 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:11:47,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:47,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:47,785 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:47,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 04:11:47,943 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:11:47,943 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:47,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:11:47,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:48,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965742814] [2024-11-28 04:11:48,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220484223] [2024-11-28 04:11:48,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220484223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:48,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:48,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:11:48,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972406221] [2024-11-28 04:11:48,935 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:48,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:11:48,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:48,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:11:48,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:48,936 INFO L87 Difference]: Start difference. First operand 3524 states and 4810 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:50,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:50,023 INFO L93 Difference]: Finished difference Result 3596 states and 4890 transitions. [2024-11-28 04:11:50,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:11:50,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:11:50,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:50,028 INFO L225 Difference]: With dead ends: 3596 [2024-11-28 04:11:50,029 INFO L226 Difference]: Without dead ends: 3595 [2024-11-28 04:11:50,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:11:50,031 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 156 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:50,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 349 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:11:50,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2024-11-28 04:11:50,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3524. [2024-11-28 04:11:50,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3154 states have (on average 1.3059606848446417) internal successors, (4119), 3176 states have internal predecessors, (4119), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:11:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4809 transitions. [2024-11-28 04:11:50,467 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4809 transitions. Word has length 149 [2024-11-28 04:11:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:50,468 INFO L471 AbstractCegarLoop]: Abstraction has 3524 states and 4809 transitions. [2024-11-28 04:11:50,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4809 transitions. [2024-11-28 04:11:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:11:50,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:50,469 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:11:50,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:50,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:50,669 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:50,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:50,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1870255258, now seen corresponding path program 6 times [2024-11-28 04:11:50,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:50,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571988618] [2024-11-28 04:11:50,670 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:11:50,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:50,695 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:11:50,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:50,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888134901] [2024-11-28 04:11:50,696 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:11:50,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:50,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:50,698 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:50,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 04:11:50,798 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:11:50,798 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:50,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:11:50,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:11:51,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:51,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:51,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571988618] [2024-11-28 04:11:51,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:51,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888134901] [2024-11-28 04:11:51,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888134901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:51,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:51,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:11:51,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668708697] [2024-11-28 04:11:51,885 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:51,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:11:51,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:51,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:11:51,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:51,886 INFO L87 Difference]: Start difference. First operand 3524 states and 4809 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:52,731 INFO L93 Difference]: Finished difference Result 3576 states and 4866 transitions. [2024-11-28 04:11:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:11:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:11:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:52,739 INFO L225 Difference]: With dead ends: 3576 [2024-11-28 04:11:52,739 INFO L226 Difference]: Without dead ends: 3575 [2024-11-28 04:11:52,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:52,740 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 72 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:52,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 222 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:11:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2024-11-28 04:11:53,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3524. [2024-11-28 04:11:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3154 states have (on average 1.3056436271401395) internal successors, (4118), 3176 states have internal predecessors, (4118), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:11:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4808 transitions. [2024-11-28 04:11:53,137 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4808 transitions. Word has length 149 [2024-11-28 04:11:53,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:53,137 INFO L471 AbstractCegarLoop]: Abstraction has 3524 states and 4808 transitions. [2024-11-28 04:11:53,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:53,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4808 transitions. [2024-11-28 04:11:53,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:11:53,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:53,138 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:53,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-28 04:11:53,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:53,339 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:53,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash -489301746, now seen corresponding path program 3 times [2024-11-28 04:11:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:53,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266598624] [2024-11-28 04:11:53,340 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:53,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:53,368 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:11:53,368 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:53,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178285033] [2024-11-28 04:11:53,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:53,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:53,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:53,374 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:53,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 04:11:53,648 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:11:53,648 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:53,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 04:11:53,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:55,571 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 24 proven. 87 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:11:55,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:55,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:55,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266598624] [2024-11-28 04:11:55,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:55,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178285033] [2024-11-28 04:11:55,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178285033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:55,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:55,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:11:55,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272434721] [2024-11-28 04:11:55,995 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:55,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:11:55,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:55,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:11:55,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:11:55,996 INFO L87 Difference]: Start difference. First operand 3524 states and 4808 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:58,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:58,847 INFO L93 Difference]: Finished difference Result 3540 states and 4823 transitions. [2024-11-28 04:11:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:11:58,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 151 [2024-11-28 04:11:58,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:58,856 INFO L225 Difference]: With dead ends: 3540 [2024-11-28 04:11:58,856 INFO L226 Difference]: Without dead ends: 3539 [2024-11-28 04:11:58,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:11:58,858 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 87 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:58,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 583 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:11:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2024-11-28 04:11:59,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3524. [2024-11-28 04:11:59,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3154 states have (on average 1.3053265694356373) internal successors, (4117), 3176 states have internal predecessors, (4117), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:11:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4807 transitions. [2024-11-28 04:11:59,457 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4807 transitions. Word has length 151 [2024-11-28 04:11:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:59,457 INFO L471 AbstractCegarLoop]: Abstraction has 3524 states and 4807 transitions. [2024-11-28 04:11:59,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:11:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4807 transitions. [2024-11-28 04:11:59,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:11:59,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:59,458 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:59,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-28 04:11:59,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:59,659 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:11:59,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:59,659 INFO L85 PathProgramCache]: Analyzing trace with hash 203190506, now seen corresponding path program 4 times [2024-11-28 04:11:59,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:59,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700639797] [2024-11-28 04:11:59,660 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:11:59,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:59,688 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:11:59,689 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:59,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521586152] [2024-11-28 04:11:59,690 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:11:59,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:59,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:59,693 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:59,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 04:11:59,805 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:11:59,805 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:59,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:11:59,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:12:00,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:12:01,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:01,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700639797] [2024-11-28 04:12:01,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:01,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521586152] [2024-11-28 04:12:01,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521586152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:12:01,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:12:01,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-28 04:12:01,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480473514] [2024-11-28 04:12:01,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:01,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:12:01,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:01,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:12:01,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:12:01,506 INFO L87 Difference]: Start difference. First operand 3524 states and 4807 transitions. Second operand has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:12:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:09,291 INFO L93 Difference]: Finished difference Result 3650 states and 4952 transitions. [2024-11-28 04:12:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:12:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 151 [2024-11-28 04:12:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:09,296 INFO L225 Difference]: With dead ends: 3650 [2024-11-28 04:12:09,297 INFO L226 Difference]: Without dead ends: 3649 [2024-11-28 04:12:09,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:12:09,298 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 576 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:09,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 531 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 04:12:09,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2024-11-28 04:12:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3528. [2024-11-28 04:12:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3158 states have (on average 1.3036732108929703) internal successors, (4117), 3180 states have internal predecessors, (4117), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:12:09,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4807 transitions. [2024-11-28 04:12:09,729 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4807 transitions. Word has length 151 [2024-11-28 04:12:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:09,730 INFO L471 AbstractCegarLoop]: Abstraction has 3528 states and 4807 transitions. [2024-11-28 04:12:09,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:12:09,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4807 transitions. [2024-11-28 04:12:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:12:09,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:09,731 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:09,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-28 04:12:09,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:09,932 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:09,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1001941732, now seen corresponding path program 5 times [2024-11-28 04:12:09,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:09,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264967402] [2024-11-28 04:12:09,933 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:12:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:09,955 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:12:09,956 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:09,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599011659] [2024-11-28 04:12:09,957 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:12:09,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:09,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:09,962 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:09,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 04:12:10,434 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:12:10,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:10,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:12:10,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 12 proven. 117 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-28 04:12:12,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264967402] [2024-11-28 04:12:13,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599011659] [2024-11-28 04:12:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599011659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:13,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:13,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:12:13,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97024701] [2024-11-28 04:12:13,148 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:13,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:12:13,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:13,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:12:13,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:12:13,149 INFO L87 Difference]: Start difference. First operand 3528 states and 4807 transitions. Second operand has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:12:16,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:16,461 INFO L93 Difference]: Finished difference Result 3572 states and 4855 transitions. [2024-11-28 04:12:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:12:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 151 [2024-11-28 04:12:16,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:16,465 INFO L225 Difference]: With dead ends: 3572 [2024-11-28 04:12:16,465 INFO L226 Difference]: Without dead ends: 3571 [2024-11-28 04:12:16,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:12:16,466 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 161 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:16,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 546 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:12:16,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2024-11-28 04:12:16,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3528. [2024-11-28 04:12:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3158 states have (on average 1.3033565547815074) internal successors, (4116), 3180 states have internal predecessors, (4116), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:12:16,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4806 transitions. [2024-11-28 04:12:16,895 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4806 transitions. Word has length 151 [2024-11-28 04:12:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:16,895 INFO L471 AbstractCegarLoop]: Abstraction has 3528 states and 4806 transitions. [2024-11-28 04:12:16,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:12:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4806 transitions. [2024-11-28 04:12:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:12:16,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:16,897 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:16,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-28 04:12:17,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-28 04:12:17,102 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:17,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1326482624, now seen corresponding path program 6 times [2024-11-28 04:12:17,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:17,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499807334] [2024-11-28 04:12:17,103 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:12:17,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:17,136 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:12:17,136 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:17,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268348085] [2024-11-28 04:12:17,138 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:12:17,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:17,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:17,140 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:17,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 04:12:17,954 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:12:17,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:17,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:12:17,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:12:18,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:12:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499807334] [2024-11-28 04:12:19,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268348085] [2024-11-28 04:12:19,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268348085] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:12:19,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:12:19,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-28 04:12:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025162861] [2024-11-28 04:12:19,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:19,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:12:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:19,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:12:19,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:12:19,999 INFO L87 Difference]: Start difference. First operand 3528 states and 4806 transitions. Second operand has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:12:23,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:12:27,354 WARN L539 Checker$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 04:12:30,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:30,924 INFO L93 Difference]: Finished difference Result 3615 states and 4905 transitions. [2024-11-28 04:12:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:12:30,925 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 151 [2024-11-28 04:12:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:30,929 INFO L225 Difference]: With dead ends: 3615 [2024-11-28 04:12:30,929 INFO L226 Difference]: Without dead ends: 3614 [2024-11-28 04:12:30,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:12:30,930 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 428 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:30,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 631 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1368 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2024-11-28 04:12:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2024-11-28 04:12:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3533. [2024-11-28 04:12:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3163 states have (on average 1.3022447043945622) internal successors, (4119), 3185 states have internal predecessors, (4119), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:12:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4809 transitions. [2024-11-28 04:12:31,390 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4809 transitions. Word has length 151 [2024-11-28 04:12:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:31,390 INFO L471 AbstractCegarLoop]: Abstraction has 3533 states and 4809 transitions. [2024-11-28 04:12:31,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:12:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4809 transitions. [2024-11-28 04:12:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:12:31,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:31,391 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:31,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-28 04:12:31,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-28 04:12:31,592 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:31,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash -440501928, now seen corresponding path program 2 times [2024-11-28 04:12:31,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:31,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484592493] [2024-11-28 04:12:31,592 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:31,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:31,611 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:31,611 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:31,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623738525] [2024-11-28 04:12:31,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:31,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:31,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:31,615 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:31,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 04:12:31,714 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:31,714 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:31,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:12:31,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:12:32,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:33,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:33,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484592493] [2024-11-28 04:12:33,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:33,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623738525] [2024-11-28 04:12:33,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623738525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:33,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:33,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:12:33,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822477474] [2024-11-28 04:12:33,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:33,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:12:33,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:33,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:12:33,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:12:33,028 INFO L87 Difference]: Start difference. First operand 3533 states and 4809 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:34,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:34,759 INFO L93 Difference]: Finished difference Result 3648 states and 4946 transitions. [2024-11-28 04:12:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:12:34,760 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 159 [2024-11-28 04:12:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:34,764 INFO L225 Difference]: With dead ends: 3648 [2024-11-28 04:12:34,764 INFO L226 Difference]: Without dead ends: 3646 [2024-11-28 04:12:34,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:12:34,765 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 240 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:34,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 441 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:12:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2024-11-28 04:12:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3562. [2024-11-28 04:12:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3189 states have (on average 1.301661962997805) internal successors, (4151), 3211 states have internal predecessors, (4151), 348 states have call successors, (348), 2 states have call predecessors, (348), 2 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:12:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 4847 transitions. [2024-11-28 04:12:35,182 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 4847 transitions. Word has length 159 [2024-11-28 04:12:35,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:35,182 INFO L471 AbstractCegarLoop]: Abstraction has 3562 states and 4847 transitions. [2024-11-28 04:12:35,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 4847 transitions. [2024-11-28 04:12:35,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:12:35,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:35,184 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:35,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-28 04:12:35,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:35,384 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:35,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash 594691942, now seen corresponding path program 3 times [2024-11-28 04:12:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:35,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181423611] [2024-11-28 04:12:35,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:35,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:35,410 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:12:35,410 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445675673] [2024-11-28 04:12:35,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:35,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:35,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:35,418 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:35,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 04:12:35,513 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:12:35,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:35,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:12:35,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 6 proven. 117 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 04:12:36,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:37,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:37,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181423611] [2024-11-28 04:12:37,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:37,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445675673] [2024-11-28 04:12:37,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445675673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:37,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:37,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:12:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283665120] [2024-11-28 04:12:37,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:37,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:12:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:37,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:12:37,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:12:37,110 INFO L87 Difference]: Start difference. First operand 3562 states and 4847 transitions. Second operand has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:39,101 INFO L93 Difference]: Finished difference Result 3766 states and 5121 transitions. [2024-11-28 04:12:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:12:39,101 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 159 [2024-11-28 04:12:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:39,107 INFO L225 Difference]: With dead ends: 3766 [2024-11-28 04:12:39,107 INFO L226 Difference]: Without dead ends: 3758 [2024-11-28 04:12:39,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:12:39,108 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 182 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:39,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 560 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:12:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2024-11-28 04:12:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3537. [2024-11-28 04:12:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3167 states have (on average 1.3009156930849384) internal successors, (4120), 3189 states have internal predecessors, (4120), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:12:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4810 transitions. [2024-11-28 04:12:39,684 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4810 transitions. Word has length 159 [2024-11-28 04:12:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:39,684 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4810 transitions. [2024-11-28 04:12:39,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:39,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4810 transitions. [2024-11-28 04:12:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:12:39,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:39,685 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:12:39,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-28 04:12:39,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:39,886 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:39,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:39,886 INFO L85 PathProgramCache]: Analyzing trace with hash 36334395, now seen corresponding path program 2 times [2024-11-28 04:12:39,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:39,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237262708] [2024-11-28 04:12:39,887 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:39,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:39,905 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:39,905 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:39,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715228852] [2024-11-28 04:12:39,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:39,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:39,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:39,910 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:39,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 04:12:40,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:40,008 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:40,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:12:40,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:12:41,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:41,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:41,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237262708] [2024-11-28 04:12:41,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:41,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715228852] [2024-11-28 04:12:41,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715228852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:41,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:41,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:12:41,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087895421] [2024-11-28 04:12:41,612 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:41,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:12:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:41,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:12:41,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:12:41,613 INFO L87 Difference]: Start difference. First operand 3537 states and 4810 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:43,788 INFO L93 Difference]: Finished difference Result 3648 states and 4956 transitions. [2024-11-28 04:12:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:12:43,788 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2024-11-28 04:12:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:43,793 INFO L225 Difference]: With dead ends: 3648 [2024-11-28 04:12:43,793 INFO L226 Difference]: Without dead ends: 3646 [2024-11-28 04:12:43,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:12:43,795 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 179 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:43,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 615 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:12:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2024-11-28 04:12:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3603. [2024-11-28 04:12:44,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3226 states have (on average 1.300681959082455) internal successors, (4196), 3248 states have internal predecessors, (4196), 352 states have call successors, (352), 2 states have call predecessors, (352), 2 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2024-11-28 04:12:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4900 transitions. [2024-11-28 04:12:44,289 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4900 transitions. Word has length 162 [2024-11-28 04:12:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:44,289 INFO L471 AbstractCegarLoop]: Abstraction has 3603 states and 4900 transitions. [2024-11-28 04:12:44,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4900 transitions. [2024-11-28 04:12:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:12:44,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:44,290 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:12:44,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-11-28 04:12:44,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:44,491 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:44,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1631730285, now seen corresponding path program 3 times [2024-11-28 04:12:44,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:44,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202967510] [2024-11-28 04:12:44,491 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:44,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:44,516 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:12:44,516 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900794994] [2024-11-28 04:12:44,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:44,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:44,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:44,520 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:44,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 04:12:44,631 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:12:44,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:44,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:12:44,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:12:46,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:46,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202967510] [2024-11-28 04:12:46,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900794994] [2024-11-28 04:12:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900794994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:46,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:12:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301659718] [2024-11-28 04:12:46,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:46,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:12:46,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:46,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:12:46,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:12:46,363 INFO L87 Difference]: Start difference. First operand 3603 states and 4900 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:47,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:47,952 INFO L93 Difference]: Finished difference Result 3776 states and 5120 transitions. [2024-11-28 04:12:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:12:47,952 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2024-11-28 04:12:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:47,957 INFO L225 Difference]: With dead ends: 3776 [2024-11-28 04:12:47,957 INFO L226 Difference]: Without dead ends: 3775 [2024-11-28 04:12:47,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:12:47,959 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 174 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:47,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 637 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:12:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2024-11-28 04:12:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 3603. [2024-11-28 04:12:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3226 states have (on average 1.3003719776813392) internal successors, (4195), 3248 states have internal predecessors, (4195), 352 states have call successors, (352), 2 states have call predecessors, (352), 2 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2024-11-28 04:12:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4899 transitions. [2024-11-28 04:12:48,436 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4899 transitions. Word has length 162 [2024-11-28 04:12:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:48,436 INFO L471 AbstractCegarLoop]: Abstraction has 3603 states and 4899 transitions. [2024-11-28 04:12:48,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4899 transitions. [2024-11-28 04:12:48,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:12:48,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:48,438 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:12:48,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-28 04:12:48,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:48,638 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:48,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1867785143, now seen corresponding path program 4 times [2024-11-28 04:12:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:48,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869998669] [2024-11-28 04:12:48,639 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:12:48,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:48,663 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:12:48,663 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:48,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10616237] [2024-11-28 04:12:48,664 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:12:48,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:48,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:48,670 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:48,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 04:12:48,797 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:12:48,797 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:48,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:12:48,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:12:50,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:50,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:50,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869998669] [2024-11-28 04:12:50,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:50,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10616237] [2024-11-28 04:12:50,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10616237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:50,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:50,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:12:50,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044533983] [2024-11-28 04:12:50,573 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:50,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:12:50,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:50,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:12:50,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:12:50,574 INFO L87 Difference]: Start difference. First operand 3603 states and 4899 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:52,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:52,274 INFO L93 Difference]: Finished difference Result 3678 states and 4981 transitions. [2024-11-28 04:12:52,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:12:52,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2024-11-28 04:12:52,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:52,279 INFO L225 Difference]: With dead ends: 3678 [2024-11-28 04:12:52,279 INFO L226 Difference]: Without dead ends: 3677 [2024-11-28 04:12:52,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:12:52,280 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 160 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:52,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 659 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:12:52,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2024-11-28 04:12:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3603. [2024-11-28 04:12:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3226 states have (on average 1.3000619962802231) internal successors, (4194), 3248 states have internal predecessors, (4194), 352 states have call successors, (352), 2 states have call predecessors, (352), 2 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2024-11-28 04:12:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4898 transitions. [2024-11-28 04:12:52,747 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4898 transitions. Word has length 162 [2024-11-28 04:12:52,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:52,747 INFO L471 AbstractCegarLoop]: Abstraction has 3603 states and 4898 transitions. [2024-11-28 04:12:52,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:52,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4898 transitions. [2024-11-28 04:12:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 04:12:52,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:52,748 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:52,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 04:12:52,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:52,949 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:52,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash 145867818, now seen corresponding path program 2 times [2024-11-28 04:12:52,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:52,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973202585] [2024-11-28 04:12:52,949 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:52,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:52,975 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:52,978 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:52,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451272647] [2024-11-28 04:12:52,979 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:52,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:52,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:52,986 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:52,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 04:12:53,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:53,078 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:53,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:12:53,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 83 proven. 49 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:12:54,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:54,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973202585] [2024-11-28 04:12:54,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451272647] [2024-11-28 04:12:54,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451272647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:54,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:54,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:12:54,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567330013] [2024-11-28 04:12:54,105 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:54,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:12:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:54,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:12:54,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:12:54,106 INFO L87 Difference]: Start difference. First operand 3603 states and 4898 transitions. Second operand has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:55,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:55,383 INFO L93 Difference]: Finished difference Result 3847 states and 5194 transitions. [2024-11-28 04:12:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:12:55,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 163 [2024-11-28 04:12:55,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:55,389 INFO L225 Difference]: With dead ends: 3847 [2024-11-28 04:12:55,390 INFO L226 Difference]: Without dead ends: 3838 [2024-11-28 04:12:55,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:12:55,391 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 250 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:55,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 216 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:12:55,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2024-11-28 04:12:55,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 3356. [2024-11-28 04:12:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3006 states have (on average 1.2860944777112442) internal successors, (3866), 3026 states have internal predecessors, (3866), 327 states have call successors, (327), 2 states have call predecessors, (327), 2 states have return successors, (327), 327 states have call predecessors, (327), 327 states have call successors, (327) [2024-11-28 04:12:55,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 4520 transitions. [2024-11-28 04:12:55,842 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 4520 transitions. Word has length 163 [2024-11-28 04:12:55,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:55,842 INFO L471 AbstractCegarLoop]: Abstraction has 3356 states and 4520 transitions. [2024-11-28 04:12:55,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:12:55,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 4520 transitions. [2024-11-28 04:12:55,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:12:55,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:55,843 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:12:55,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-28 04:12:56,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-11-28 04:12:56,044 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:12:56,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash 557617437, now seen corresponding path program 2 times [2024-11-28 04:12:56,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:56,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558676691] [2024-11-28 04:12:56,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:56,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:56,063 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:56,063 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:56,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529081036] [2024-11-28 04:12:56,064 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:56,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:56,069 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:56,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 04:12:56,187 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:12:56,187 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:56,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:12:56,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 3 proven. 120 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:12:57,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:58,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:58,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558676691] [2024-11-28 04:12:58,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:58,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529081036] [2024-11-28 04:12:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529081036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:58,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:58,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:12:58,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125648793] [2024-11-28 04:12:58,167 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:58,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:12:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:58,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:12:58,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:12:58,168 INFO L87 Difference]: Start difference. First operand 3356 states and 4520 transitions. Second operand has 15 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:13:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:00,531 INFO L93 Difference]: Finished difference Result 3407 states and 4577 transitions. [2024-11-28 04:13:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:13:00,532 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 164 [2024-11-28 04:13:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:00,536 INFO L225 Difference]: With dead ends: 3407 [2024-11-28 04:13:00,536 INFO L226 Difference]: Without dead ends: 3405 [2024-11-28 04:13:00,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:13:00,538 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 176 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:00,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 557 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:13:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2024-11-28 04:13:00,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3284. [2024-11-28 04:13:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 2942 states have (on average 1.2838205302515295) internal successors, (3777), 2962 states have internal predecessors, (3777), 319 states have call successors, (319), 2 states have call predecessors, (319), 2 states have return successors, (319), 319 states have call predecessors, (319), 319 states have call successors, (319) [2024-11-28 04:13:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 4415 transitions. [2024-11-28 04:13:01,004 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 4415 transitions. Word has length 164 [2024-11-28 04:13:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:01,004 INFO L471 AbstractCegarLoop]: Abstraction has 3284 states and 4415 transitions. [2024-11-28 04:13:01,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:13:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 4415 transitions. [2024-11-28 04:13:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 04:13:01,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:01,006 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:01,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-28 04:13:01,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-11-28 04:13:01,207 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:13:01,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:01,207 INFO L85 PathProgramCache]: Analyzing trace with hash -68559059, now seen corresponding path program 1 times [2024-11-28 04:13:01,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:01,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252190133] [2024-11-28 04:13:01,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:01,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-28 04:13:01,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:01,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252190133] [2024-11-28 04:13:01,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252190133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:01,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101697910] [2024-11-28 04:13:01,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:01,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:01,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:01,365 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:01,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 04:13:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:01,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:13:01,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-28 04:13:01,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-28 04:13:01,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101697910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:13:01,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:13:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:13:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167937719] [2024-11-28 04:13:01,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:01,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:13:01,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:01,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:13:01,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:13:01,846 INFO L87 Difference]: Start difference. First operand 3284 states and 4415 transitions. Second operand has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:13:02,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:02,971 INFO L93 Difference]: Finished difference Result 3286 states and 4417 transitions. [2024-11-28 04:13:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:13:02,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 166 [2024-11-28 04:13:02,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:02,975 INFO L225 Difference]: With dead ends: 3286 [2024-11-28 04:13:02,975 INFO L226 Difference]: Without dead ends: 3264 [2024-11-28 04:13:02,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:13:02,976 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 24 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:02,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 173 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:13:02,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2024-11-28 04:13:03,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3262. [2024-11-28 04:13:03,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2924 states have (on average 1.2790697674418605) internal successors, (3740), 2942 states have internal predecessors, (3740), 317 states have call successors, (317), 2 states have call predecessors, (317), 2 states have return successors, (317), 317 states have call predecessors, (317), 317 states have call successors, (317) [2024-11-28 04:13:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4374 transitions. [2024-11-28 04:13:03,409 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4374 transitions. Word has length 166 [2024-11-28 04:13:03,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:03,410 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 4374 transitions. [2024-11-28 04:13:03,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:13:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4374 transitions. [2024-11-28 04:13:03,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:13:03,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:03,411 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:03,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2024-11-28 04:13:03,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-28 04:13:03,611 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:13:03,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -666405522, now seen corresponding path program 3 times [2024-11-28 04:13:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:03,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441358998] [2024-11-28 04:13:03,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:13:03,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:03,638 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:13:03,639 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:13:03,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374911322] [2024-11-28 04:13:03,640 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:13:03,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:03,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:03,642 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:03,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 04:13:03,729 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:13:03,729 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:03,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:13:03,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 58 proven. 63 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 04:13:05,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:05,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:05,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441358998] [2024-11-28 04:13:05,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:05,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374911322] [2024-11-28 04:13:05,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374911322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:05,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:05,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:13:05,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840857833] [2024-11-28 04:13:05,944 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:05,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:13:05,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:05,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:13:05,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:13:05,945 INFO L87 Difference]: Start difference. First operand 3262 states and 4374 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:13:10,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:13,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:18,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:22,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:24,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:27,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:30,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:36,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:39,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:40,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:44,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:45,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:45,299 INFO L93 Difference]: Finished difference Result 3296 states and 4406 transitions. [2024-11-28 04:13:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:13:45,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 170 [2024-11-28 04:13:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:45,304 INFO L225 Difference]: With dead ends: 3296 [2024-11-28 04:13:45,304 INFO L226 Difference]: Without dead ends: 3250 [2024-11-28 04:13:45,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:13:45,306 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 159 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 20 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:45,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 326 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 845 Invalid, 7 Unknown, 0 Unchecked, 37.9s Time] [2024-11-28 04:13:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2024-11-28 04:13:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3156. [2024-11-28 04:13:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 2830 states have (on average 1.2759717314487633) internal successors, (3611), 2848 states have internal predecessors, (3611), 305 states have call successors, (305), 2 states have call predecessors, (305), 2 states have return successors, (305), 305 states have call predecessors, (305), 305 states have call successors, (305) [2024-11-28 04:13:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4221 transitions. [2024-11-28 04:13:45,727 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 4221 transitions. Word has length 170 [2024-11-28 04:13:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:45,727 INFO L471 AbstractCegarLoop]: Abstraction has 3156 states and 4221 transitions. [2024-11-28 04:13:45,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:13:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 4221 transitions. [2024-11-28 04:13:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:13:45,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:45,728 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:13:45,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2024-11-28 04:13:45,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-28 04:13:45,929 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:13:45,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2071851680, now seen corresponding path program 2 times [2024-11-28 04:13:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:45,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368098790] [2024-11-28 04:13:45,929 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:13:45,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:45,949 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:13:45,949 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:13:45,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61019009] [2024-11-28 04:13:45,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:13:45,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:45,955 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:45,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 04:13:46,042 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:13:46,042 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:46,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:13:46,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:13:47,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:47,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368098790] [2024-11-28 04:13:47,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61019009] [2024-11-28 04:13:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61019009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:47,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:47,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:13:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717121514] [2024-11-28 04:13:47,729 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:47,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:13:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:47,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:13:47,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:13:47,730 INFO L87 Difference]: Start difference. First operand 3156 states and 4221 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:13:49,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:49,428 INFO L93 Difference]: Finished difference Result 3225 states and 4302 transitions. [2024-11-28 04:13:49,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:13:49,429 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 170 [2024-11-28 04:13:49,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:49,433 INFO L225 Difference]: With dead ends: 3225 [2024-11-28 04:13:49,433 INFO L226 Difference]: Without dead ends: 3223 [2024-11-28 04:13:49,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:13:49,434 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 136 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:49,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 577 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:13:49,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2024-11-28 04:13:49,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 3185. [2024-11-28 04:13:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 2856 states have (on average 1.2755602240896358) internal successors, (3643), 2874 states have internal predecessors, (3643), 308 states have call successors, (308), 2 states have call predecessors, (308), 2 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-28 04:13:49,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4259 transitions. [2024-11-28 04:13:49,863 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4259 transitions. Word has length 170 [2024-11-28 04:13:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:49,864 INFO L471 AbstractCegarLoop]: Abstraction has 3185 states and 4259 transitions. [2024-11-28 04:13:49,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:13:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4259 transitions. [2024-11-28 04:13:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:13:49,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:49,865 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:13:49,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-28 04:13:50,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:50,066 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:13:50,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1501169540, now seen corresponding path program 3 times [2024-11-28 04:13:50,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473813001] [2024-11-28 04:13:50,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:13:50,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:50,092 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:13:50,092 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:13:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553703397] [2024-11-28 04:13:50,093 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:13:50,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:50,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:50,100 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:50,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-28 04:13:50,220 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:13:50,221 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:50,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:13:50,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 54 proven. 106 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:13:53,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:14:32,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:14:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473813001] [2024-11-28 04:14:32,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:14:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553703397] [2024-11-28 04:14:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553703397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:14:32,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:14:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:14:32,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787936930] [2024-11-28 04:14:32,477 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:14:32,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:14:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:14:32,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:14:32,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=336, Unknown=7, NotChecked=0, Total=420 [2024-11-28 04:14:32,478 INFO L87 Difference]: Start difference. First operand 3185 states and 4259 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:14:38,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:14:41,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:14:47,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:14:48,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:14:53,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:14:57,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:15:00,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:15:04,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:15:07,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:15:10,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:15:10,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:10,350 INFO L93 Difference]: Finished difference Result 3413 states and 4531 transitions. [2024-11-28 04:15:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:15:10,350 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 170 [2024-11-28 04:15:10,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:10,355 INFO L225 Difference]: With dead ends: 3413 [2024-11-28 04:15:10,355 INFO L226 Difference]: Without dead ends: 3412 [2024-11-28 04:15:10,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=93, Invalid=406, Unknown=7, NotChecked=0, Total=506 [2024-11-28 04:15:10,356 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 289 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:10,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 696 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1943 Invalid, 2 Unknown, 0 Unchecked, 37.3s Time] [2024-11-28 04:15:10,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2024-11-28 04:15:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3185. [2024-11-28 04:15:10,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 2856 states have (on average 1.274859943977591) internal successors, (3641), 2874 states have internal predecessors, (3641), 308 states have call successors, (308), 2 states have call predecessors, (308), 2 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-28 04:15:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4257 transitions. [2024-11-28 04:15:10,724 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4257 transitions. Word has length 170 [2024-11-28 04:15:10,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:10,725 INFO L471 AbstractCegarLoop]: Abstraction has 3185 states and 4257 transitions. [2024-11-28 04:15:10,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:15:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4257 transitions. [2024-11-28 04:15:10,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:15:10,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:10,726 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:15:10,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-11-28 04:15:10,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-28 04:15:10,926 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:10,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1237087662, now seen corresponding path program 4 times [2024-11-28 04:15:10,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137003206] [2024-11-28 04:15:10,927 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:15:10,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:10,951 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:15:10,951 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:10,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382330211] [2024-11-28 04:15:10,953 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:15:10,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:10,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:10,955 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:10,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-28 04:15:11,068 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:15:11,068 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:11,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:15:11,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2024-11-28 04:15:11,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:15:12,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:12,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137003206] [2024-11-28 04:15:12,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:12,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382330211] [2024-11-28 04:15:12,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382330211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:15:12,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:15:12,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2024-11-28 04:15:12,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367034989] [2024-11-28 04:15:12,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:12,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:15:12,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:12,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:15:12,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:15:12,446 INFO L87 Difference]: Start difference. First operand 3185 states and 4257 transitions. Second operand has 13 states, 12 states have (on average 12.833333333333334) internal successors, (154), 13 states have internal predecessors, (154), 9 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 8 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:15:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:14,460 INFO L93 Difference]: Finished difference Result 3407 states and 4503 transitions. [2024-11-28 04:15:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:15:14,461 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.833333333333334) internal successors, (154), 13 states have internal predecessors, (154), 9 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 8 states have call predecessors, (24), 9 states have call successors, (24) Word has length 170 [2024-11-28 04:15:14,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:14,465 INFO L225 Difference]: With dead ends: 3407 [2024-11-28 04:15:14,465 INFO L226 Difference]: Without dead ends: 3404 [2024-11-28 04:15:14,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:15:14,466 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 538 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:14,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 700 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:15:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-28 04:15:14,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3181. [2024-11-28 04:15:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2853 states have (on average 1.2681388012618298) internal successors, (3618), 2870 states have internal predecessors, (3618), 308 states have call successors, (308), 2 states have call predecessors, (308), 2 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-28 04:15:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4234 transitions. [2024-11-28 04:15:14,822 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4234 transitions. Word has length 170 [2024-11-28 04:15:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:14,822 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4234 transitions. [2024-11-28 04:15:14,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.833333333333334) internal successors, (154), 13 states have internal predecessors, (154), 9 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 8 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:15:14,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4234 transitions. [2024-11-28 04:15:14,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:15:14,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:14,823 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 04:15:14,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2024-11-28 04:15:15,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:15,023 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:15,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:15,024 INFO L85 PathProgramCache]: Analyzing trace with hash -441536402, now seen corresponding path program 2 times [2024-11-28 04:15:15,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:15,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424966020] [2024-11-28 04:15:15,024 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:15,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:15,041 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:15,041 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:15,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533222749] [2024-11-28 04:15:15,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:15,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:15,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:15,048 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-28 04:15:15,128 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:15,128 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:15,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:15:15,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:15:16,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:16,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424966020] [2024-11-28 04:15:16,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533222749] [2024-11-28 04:15:16,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533222749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:16,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:16,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:15:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142431067] [2024-11-28 04:15:16,965 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:16,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:15:16,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:16,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:15:16,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:15:16,966 INFO L87 Difference]: Start difference. First operand 3181 states and 4234 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:15:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:18,427 INFO L93 Difference]: Finished difference Result 3247 states and 4311 transitions. [2024-11-28 04:15:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:15:18,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2024-11-28 04:15:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:18,432 INFO L225 Difference]: With dead ends: 3247 [2024-11-28 04:15:18,432 INFO L226 Difference]: Without dead ends: 3220 [2024-11-28 04:15:18,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:15:18,434 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 146 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:18,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 608 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:15:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2024-11-28 04:15:18,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3210. [2024-11-28 04:15:18,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2879 states have (on average 1.2660646057658909) internal successors, (3645), 2896 states have internal predecessors, (3645), 311 states have call successors, (311), 2 states have call predecessors, (311), 2 states have return successors, (311), 311 states have call predecessors, (311), 311 states have call successors, (311) [2024-11-28 04:15:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4267 transitions. [2024-11-28 04:15:18,797 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4267 transitions. Word has length 173 [2024-11-28 04:15:18,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:18,797 INFO L471 AbstractCegarLoop]: Abstraction has 3210 states and 4267 transitions. [2024-11-28 04:15:18,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:15:18,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4267 transitions. [2024-11-28 04:15:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:15:18,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:18,798 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 04:15:18,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2024-11-28 04:15:18,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:18,999 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:18,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2142204654, now seen corresponding path program 3 times [2024-11-28 04:15:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:18,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047436632] [2024-11-28 04:15:18,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:15:19,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:19,022 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:15:19,022 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:19,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887228448] [2024-11-28 04:15:19,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:15:19,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:19,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:19,025 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:19,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-28 04:15:19,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:15:19,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:19,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:15:19,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:20,161 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:15:20,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047436632] [2024-11-28 04:15:20,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887228448] [2024-11-28 04:15:20,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887228448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:20,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:20,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:15:20,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115253521] [2024-11-28 04:15:20,549 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:20,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:15:20,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:20,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:15:20,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:15:20,550 INFO L87 Difference]: Start difference. First operand 3210 states and 4267 transitions. Second operand has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:15:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:22,398 INFO L93 Difference]: Finished difference Result 3297 states and 4370 transitions. [2024-11-28 04:15:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:15:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2024-11-28 04:15:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:22,402 INFO L225 Difference]: With dead ends: 3297 [2024-11-28 04:15:22,402 INFO L226 Difference]: Without dead ends: 3270 [2024-11-28 04:15:22,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:15:22,403 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 170 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:22,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 550 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:15:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2024-11-28 04:15:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3243. [2024-11-28 04:15:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 2909 states have (on average 1.2653832932279134) internal successors, (3681), 2926 states have internal predecessors, (3681), 314 states have call successors, (314), 2 states have call predecessors, (314), 2 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2024-11-28 04:15:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4309 transitions. [2024-11-28 04:15:22,772 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4309 transitions. Word has length 173 [2024-11-28 04:15:22,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:22,773 INFO L471 AbstractCegarLoop]: Abstraction has 3243 states and 4309 transitions. [2024-11-28 04:15:22,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:15:22,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4309 transitions. [2024-11-28 04:15:22,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:15:22,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:22,774 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 04:15:22,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-28 04:15:22,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2024-11-28 04:15:22,974 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:22,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:22,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1035752800, now seen corresponding path program 4 times [2024-11-28 04:15:22,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:22,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176555813] [2024-11-28 04:15:22,975 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:15:22,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:22,996 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:15:22,996 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:22,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59081722] [2024-11-28 04:15:22,997 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:15:22,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:22,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:23,001 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:23,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-28 04:15:23,115 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:15:23,115 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:23,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:15:23,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:15:24,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:24,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:24,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176555813] [2024-11-28 04:15:24,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:24,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59081722] [2024-11-28 04:15:24,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59081722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:24,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:24,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:15:24,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137642535] [2024-11-28 04:15:24,807 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:24,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:15:24,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:24,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:15:24,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:15:24,808 INFO L87 Difference]: Start difference. First operand 3243 states and 4309 transitions. Second operand has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 11 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:15:26,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:26,359 INFO L93 Difference]: Finished difference Result 3405 states and 4510 transitions. [2024-11-28 04:15:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:15:26,360 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 11 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2024-11-28 04:15:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:26,363 INFO L225 Difference]: With dead ends: 3405 [2024-11-28 04:15:26,363 INFO L226 Difference]: Without dead ends: 3378 [2024-11-28 04:15:26,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:15:26,364 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 186 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:26,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 559 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:15:26,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3378 states. [2024-11-28 04:15:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3378 to 3320. [2024-11-28 04:15:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 2977 states have (on average 1.262680550890158) internal successors, (3759), 2994 states have internal predecessors, (3759), 323 states have call successors, (323), 2 states have call predecessors, (323), 2 states have return successors, (323), 323 states have call predecessors, (323), 323 states have call successors, (323) [2024-11-28 04:15:26,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4405 transitions. [2024-11-28 04:15:26,763 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4405 transitions. Word has length 173 [2024-11-28 04:15:26,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:26,763 INFO L471 AbstractCegarLoop]: Abstraction has 3320 states and 4405 transitions. [2024-11-28 04:15:26,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 11 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:15:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4405 transitions. [2024-11-28 04:15:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 04:15:26,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:26,765 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:15:26,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-28 04:15:26,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2024-11-28 04:15:26,969 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:26,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash -742995598, now seen corresponding path program 2 times [2024-11-28 04:15:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:26,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172427540] [2024-11-28 04:15:26,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:26,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:26,982 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:26,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:26,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1995355750] [2024-11-28 04:15:26,983 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:26,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:26,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:26,985 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:26,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-28 04:15:27,125 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:27,126 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:27,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:15:27,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 41 proven. 115 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 04:15:28,536 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:28,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:28,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172427540] [2024-11-28 04:15:28,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:28,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995355750] [2024-11-28 04:15:28,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995355750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:28,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:28,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:15:28,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849988235] [2024-11-28 04:15:28,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:28,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:15:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:28,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:15:28,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:15:28,624 INFO L87 Difference]: Start difference. First operand 3320 states and 4405 transitions. Second operand has 13 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-28 04:15:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:30,982 INFO L93 Difference]: Finished difference Result 3675 states and 4866 transitions. [2024-11-28 04:15:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:15:30,982 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 174 [2024-11-28 04:15:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:30,986 INFO L225 Difference]: With dead ends: 3675 [2024-11-28 04:15:30,987 INFO L226 Difference]: Without dead ends: 3674 [2024-11-28 04:15:30,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=444, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:15:30,988 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 320 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:30,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 355 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:15:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-11-28 04:15:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 2918. [2024-11-28 04:15:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2616 states have (on average 1.2450305810397553) internal successors, (3257), 2632 states have internal predecessors, (3257), 283 states have call successors, (283), 2 states have call predecessors, (283), 2 states have return successors, (283), 283 states have call predecessors, (283), 283 states have call successors, (283) [2024-11-28 04:15:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 3823 transitions. [2024-11-28 04:15:31,623 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 3823 transitions. Word has length 174 [2024-11-28 04:15:31,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:31,623 INFO L471 AbstractCegarLoop]: Abstraction has 2918 states and 3823 transitions. [2024-11-28 04:15:31,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-28 04:15:31,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 3823 transitions. [2024-11-28 04:15:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:15:31,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:31,624 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:15:31,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-28 04:15:31,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-28 04:15:31,825 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:31,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1558026974, now seen corresponding path program 2 times [2024-11-28 04:15:31,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:31,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81494911] [2024-11-28 04:15:31,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:31,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:31,841 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:31,841 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:31,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683278204] [2024-11-28 04:15:31,842 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:31,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:31,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:31,846 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:31,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-28 04:15:31,932 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:31,932 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:31,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:15:31,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 04:15:34,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 04:15:37,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81494911] [2024-11-28 04:15:37,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683278204] [2024-11-28 04:15:37,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683278204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:15:37,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:15:37,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2024-11-28 04:15:37,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155621008] [2024-11-28 04:15:37,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:37,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:15:37,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:37,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:15:37,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:15:37,658 INFO L87 Difference]: Start difference. First operand 2918 states and 3823 transitions. Second operand has 22 states, 21 states have (on average 9.952380952380953) internal successors, (209), 20 states have internal predecessors, (209), 13 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (30), 12 states have call predecessors, (30), 13 states have call successors, (30) [2024-11-28 04:15:40,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:15:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:45,850 INFO L93 Difference]: Finished difference Result 3174 states and 4147 transitions. [2024-11-28 04:15:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:15:45,850 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.952380952380953) internal successors, (209), 20 states have internal predecessors, (209), 13 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (30), 12 states have call predecessors, (30), 13 states have call successors, (30) Word has length 175 [2024-11-28 04:15:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:45,853 INFO L225 Difference]: With dead ends: 3174 [2024-11-28 04:15:45,853 INFO L226 Difference]: Without dead ends: 3173 [2024-11-28 04:15:45,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=386, Invalid=1020, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:15:45,854 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 1106 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:45,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 704 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 04:15:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-28 04:15:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3025. [2024-11-28 04:15:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 2713 states have (on average 1.2421673424253594) internal successors, (3370), 2729 states have internal predecessors, (3370), 293 states have call successors, (293), 2 states have call predecessors, (293), 2 states have return successors, (293), 293 states have call predecessors, (293), 293 states have call successors, (293) [2024-11-28 04:15:46,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 3956 transitions. [2024-11-28 04:15:46,205 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 3956 transitions. Word has length 175 [2024-11-28 04:15:46,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:46,205 INFO L471 AbstractCegarLoop]: Abstraction has 3025 states and 3956 transitions. [2024-11-28 04:15:46,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.952380952380953) internal successors, (209), 20 states have internal predecessors, (209), 13 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (30), 12 states have call predecessors, (30), 13 states have call successors, (30) [2024-11-28 04:15:46,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 3956 transitions. [2024-11-28 04:15:46,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:15:46,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:46,206 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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 04:15:46,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-11-28 04:15:46,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-11-28 04:15:46,407 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:46,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:46,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1073974498, now seen corresponding path program 1 times [2024-11-28 04:15:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:46,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686817462] [2024-11-28 04:15:46,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:46,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:15:46,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619643484] [2024-11-28 04:15:46,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:46,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:46,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:46,432 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:46,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-28 04:15:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:46,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:15:46,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 04:15:47,433 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:47,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686817462] [2024-11-28 04:15:47,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619643484] [2024-11-28 04:15:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619643484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:47,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:15:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26767694] [2024-11-28 04:15:47,590 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:47,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:15:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:47,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:15:47,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:15:47,591 INFO L87 Difference]: Start difference. First operand 3025 states and 3956 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 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 04:15:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:50,693 INFO L93 Difference]: Finished difference Result 4088 states and 5366 transitions. [2024-11-28 04:15:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:15:50,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 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 175 [2024-11-28 04:15:50,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:50,697 INFO L225 Difference]: With dead ends: 4088 [2024-11-28 04:15:50,698 INFO L226 Difference]: Without dead ends: 3935 [2024-11-28 04:15:50,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:15:50,699 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 612 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:50,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 674 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:15:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2024-11-28 04:15:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3762. [2024-11-28 04:15:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 3376 states have (on average 1.2449644549763033) internal successors, (4203), 3392 states have internal predecessors, (4203), 367 states have call successors, (367), 2 states have call predecessors, (367), 2 states have return successors, (367), 367 states have call predecessors, (367), 367 states have call successors, (367) [2024-11-28 04:15:51,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 4937 transitions. [2024-11-28 04:15:51,306 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 4937 transitions. Word has length 175 [2024-11-28 04:15:51,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:51,307 INFO L471 AbstractCegarLoop]: Abstraction has 3762 states and 4937 transitions. [2024-11-28 04:15:51,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 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 04:15:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 4937 transitions. [2024-11-28 04:15:51,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:15:51,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:51,308 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:15:51,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2024-11-28 04:15:51,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:51,512 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:51,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:51,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1535454880, now seen corresponding path program 1 times [2024-11-28 04:15:51,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:51,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501491665] [2024-11-28 04:15:51,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:51,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:51,667 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:15:51,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:51,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501491665] [2024-11-28 04:15:51,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501491665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:51,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424382864] [2024-11-28 04:15:51,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:51,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:51,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:51,670 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:51,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-28 04:15:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:51,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:15:51,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 25 proven. 121 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:15:52,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:15:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424382864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:15:52,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:15:52,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2024-11-28 04:15:52,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864816203] [2024-11-28 04:15:52,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:52,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:15:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:52,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:15:52,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:15:52,634 INFO L87 Difference]: Start difference. First operand 3762 states and 4937 transitions. Second operand has 19 states, 18 states have (on average 14.88888888888889) internal successors, (268), 19 states have internal predecessors, (268), 12 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 12 states have call predecessors, (38), 12 states have call successors, (38) [2024-11-28 04:15:55,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:55,295 INFO L93 Difference]: Finished difference Result 6552 states and 8682 transitions. [2024-11-28 04:15:55,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:15:55,295 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 14.88888888888889) internal successors, (268), 19 states have internal predecessors, (268), 12 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 12 states have call predecessors, (38), 12 states have call successors, (38) Word has length 184 [2024-11-28 04:15:55,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:55,303 INFO L225 Difference]: With dead ends: 6552 [2024-11-28 04:15:55,304 INFO L226 Difference]: Without dead ends: 6551 [2024-11-28 04:15:55,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=919, Invalid=2051, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:15:55,306 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 1359 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:55,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 1280 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:15:55,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2024-11-28 04:15:56,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 5830. [2024-11-28 04:15:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5830 states, 5234 states have (on average 1.273786778754299) internal successors, (6667), 5250 states have internal predecessors, (6667), 577 states have call successors, (577), 2 states have call predecessors, (577), 2 states have return successors, (577), 577 states have call predecessors, (577), 577 states have call successors, (577) [2024-11-28 04:15:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5830 states to 5830 states and 7821 transitions. [2024-11-28 04:15:56,090 INFO L78 Accepts]: Start accepts. Automaton has 5830 states and 7821 transitions. Word has length 184 [2024-11-28 04:15:56,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:56,090 INFO L471 AbstractCegarLoop]: Abstraction has 5830 states and 7821 transitions. [2024-11-28 04:15:56,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 14.88888888888889) internal successors, (268), 19 states have internal predecessors, (268), 12 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 12 states have call predecessors, (38), 12 states have call successors, (38) [2024-11-28 04:15:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5830 states and 7821 transitions. [2024-11-28 04:15:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:15:56,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:56,092 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:15:56,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2024-11-28 04:15:56,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:56,292 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:15:56,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash -671620448, now seen corresponding path program 1 times [2024-11-28 04:15:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:56,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272617475] [2024-11-28 04:15:56,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:56,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:15:56,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:56,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272617475] [2024-11-28 04:15:56,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272617475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:56,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910646248] [2024-11-28 04:15:56,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:56,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:56,482 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:56,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-28 04:15:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:56,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:15:56,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 48 proven. 98 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:15:56,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:15:57,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910646248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:15:57,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:15:57,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-28 04:15:57,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454785083] [2024-11-28 04:15:57,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:57,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:15:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:57,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:15:57,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:15:57,392 INFO L87 Difference]: Start difference. First operand 5830 states and 7821 transitions. Second operand has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 16 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 16 states have call predecessors, (48), 16 states have call successors, (48) [2024-11-28 04:16:00,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:00,921 INFO L93 Difference]: Finished difference Result 7387 states and 9906 transitions. [2024-11-28 04:16:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-28 04:16:00,921 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 16 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 16 states have call predecessors, (48), 16 states have call successors, (48) Word has length 184 [2024-11-28 04:16:00,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:00,929 INFO L225 Difference]: With dead ends: 7387 [2024-11-28 04:16:00,929 INFO L226 Difference]: Without dead ends: 7386 [2024-11-28 04:16:00,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1556 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1306, Invalid=3950, Unknown=0, NotChecked=0, Total=5256 [2024-11-28 04:16:00,931 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 1365 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:00,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1037 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:16:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7386 states. [2024-11-28 04:16:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7386 to 5738. [2024-11-28 04:16:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5151 states have (on average 1.2731508444962143) internal successors, (6558), 5167 states have internal predecessors, (6558), 568 states have call successors, (568), 2 states have call predecessors, (568), 2 states have return successors, (568), 568 states have call predecessors, (568), 568 states have call successors, (568) [2024-11-28 04:16:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 7694 transitions. [2024-11-28 04:16:01,787 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 7694 transitions. Word has length 184 [2024-11-28 04:16:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:01,787 INFO L471 AbstractCegarLoop]: Abstraction has 5738 states and 7694 transitions. [2024-11-28 04:16:01,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 16 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 16 states have call predecessors, (48), 16 states have call successors, (48) [2024-11-28 04:16:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 7694 transitions. [2024-11-28 04:16:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-28 04:16:01,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:01,788 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:16:01,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-11-28 04:16:01,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:01,989 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:16:01,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:01,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2100742737, now seen corresponding path program 1 times [2024-11-28 04:16:01,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:01,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057402428] [2024-11-28 04:16:01,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:01,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:02,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057402428] [2024-11-28 04:16:02,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057402428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114254266] [2024-11-28 04:16:02,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:02,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:02,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:02,120 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:02,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-28 04:16:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:02,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:16:02,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:02,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:02,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114254266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:02,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:16:02,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:16:02,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227429474] [2024-11-28 04:16:02,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:02,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:16:02,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:02,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:16:02,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:16:02,929 INFO L87 Difference]: Start difference. First operand 5738 states and 7694 transitions. Second operand has 14 states, 13 states have (on average 24.23076923076923) internal successors, (315), 14 states have internal predecessors, (315), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:16:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:05,196 INFO L93 Difference]: Finished difference Result 7347 states and 9785 transitions. [2024-11-28 04:16:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:16:05,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.23076923076923) internal successors, (315), 14 states have internal predecessors, (315), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 185 [2024-11-28 04:16:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:05,205 INFO L225 Difference]: With dead ends: 7347 [2024-11-28 04:16:05,205 INFO L226 Difference]: Without dead ends: 7345 [2024-11-28 04:16:05,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=227, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:16:05,206 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 652 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:05,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 642 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:16:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2024-11-28 04:16:06,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 6971. [2024-11-28 04:16:06,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6258 states have (on average 1.2724512623841482) internal successors, (7963), 6274 states have internal predecessors, (7963), 694 states have call successors, (694), 2 states have call predecessors, (694), 2 states have return successors, (694), 694 states have call predecessors, (694), 694 states have call successors, (694) [2024-11-28 04:16:06,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 9351 transitions. [2024-11-28 04:16:06,707 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 9351 transitions. Word has length 185 [2024-11-28 04:16:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:06,708 INFO L471 AbstractCegarLoop]: Abstraction has 6971 states and 9351 transitions. [2024-11-28 04:16:06,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.23076923076923) internal successors, (315), 14 states have internal predecessors, (315), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:16:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 9351 transitions. [2024-11-28 04:16:06,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:16:06,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:06,710 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:06,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2024-11-28 04:16:06,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2024-11-28 04:16:06,911 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:16:06,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1256676878, now seen corresponding path program 1 times [2024-11-28 04:16:06,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:06,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045715428] [2024-11-28 04:16:06,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:06,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:07,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:07,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045715428] [2024-11-28 04:16:07,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045715428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:07,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072115522] [2024-11-28 04:16:07,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:07,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:07,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:07,097 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:07,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-28 04:16:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:07,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:16:07,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:07,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:08,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072115522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:08,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:16:08,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:16:08,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392686364] [2024-11-28 04:16:08,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:08,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:16:08,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:08,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:16:08,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:16:08,089 INFO L87 Difference]: Start difference. First operand 6971 states and 9351 transitions. Second operand has 14 states, 13 states have (on average 24.923076923076923) internal successors, (324), 14 states have internal predecessors, (324), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:16:10,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:10,510 INFO L93 Difference]: Finished difference Result 8011 states and 10670 transitions. [2024-11-28 04:16:10,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:16:10,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.923076923076923) internal successors, (324), 14 states have internal predecessors, (324), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 188 [2024-11-28 04:16:10,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:10,519 INFO L225 Difference]: With dead ends: 8011 [2024-11-28 04:16:10,519 INFO L226 Difference]: Without dead ends: 8009 [2024-11-28 04:16:10,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:16:10,521 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 447 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:10,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 620 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:16:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2024-11-28 04:16:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 7779. [2024-11-28 04:16:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 6991 states have (on average 1.2650550708053212) internal successors, (8844), 7007 states have internal predecessors, (8844), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-28 04:16:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 10382 transitions. [2024-11-28 04:16:11,802 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 10382 transitions. Word has length 188 [2024-11-28 04:16:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:11,802 INFO L471 AbstractCegarLoop]: Abstraction has 7779 states and 10382 transitions. [2024-11-28 04:16:11,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.923076923076923) internal successors, (324), 14 states have internal predecessors, (324), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:16:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 10382 transitions. [2024-11-28 04:16:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:16:11,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:11,804 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:11,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:12,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:12,005 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:16:12,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2042260684, now seen corresponding path program 7 times [2024-11-28 04:16:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:12,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673790604] [2024-11-28 04:16:12,005 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:16:12,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:16:12,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661303561] [2024-11-28 04:16:12,034 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:16:12,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:12,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:12,036 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:12,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-28 04:16:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:12,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:16:12,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:13,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:13,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:13,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673790604] [2024-11-28 04:16:13,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:16:13,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661303561] [2024-11-28 04:16:13,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661303561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:13,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:13,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:16:13,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901295187] [2024-11-28 04:16:13,450 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:13,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:16:13,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:13,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:16:13,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:16:13,451 INFO L87 Difference]: Start difference. First operand 7779 states and 10382 transitions. Second operand has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:16:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:15,277 INFO L93 Difference]: Finished difference Result 7806 states and 10410 transitions. [2024-11-28 04:16:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:16:15,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:16:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:15,286 INFO L225 Difference]: With dead ends: 7806 [2024-11-28 04:16:15,286 INFO L226 Difference]: Without dead ends: 7805 [2024-11-28 04:16:15,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:16:15,288 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 68 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:15,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 462 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:16:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7805 states. [2024-11-28 04:16:16,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7805 to 7779. [2024-11-28 04:16:16,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 6991 states have (on average 1.264912029752539) internal successors, (8843), 7007 states have internal predecessors, (8843), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-28 04:16:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 10381 transitions. [2024-11-28 04:16:16,809 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 10381 transitions. Word has length 190 [2024-11-28 04:16:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:16,810 INFO L471 AbstractCegarLoop]: Abstraction has 7779 states and 10381 transitions. [2024-11-28 04:16:16,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:16:16,810 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 10381 transitions. [2024-11-28 04:16:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:16:16,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:16,811 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:16,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:17,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:17,011 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:16:17,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1592910888, now seen corresponding path program 8 times [2024-11-28 04:16:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998319531] [2024-11-28 04:16:17,012 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:16:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:17,028 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:16:17,028 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:16:17,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31618746] [2024-11-28 04:16:17,029 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:16:17,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:17,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:17,033 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:17,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-28 04:16:17,118 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:16:17,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:16:17,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:16:17,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:16:18,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:18,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:18,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998319531] [2024-11-28 04:16:18,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:16:18,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31618746] [2024-11-28 04:16:18,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31618746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:18,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:18,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:16:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96359498] [2024-11-28 04:16:18,536 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:18,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:16:18,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:18,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:16:18,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:16:18,536 INFO L87 Difference]: Start difference. First operand 7779 states and 10381 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:16:20,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:20,670 INFO L93 Difference]: Finished difference Result 7806 states and 10409 transitions. [2024-11-28 04:16:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:16:20,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:16:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:20,677 INFO L225 Difference]: With dead ends: 7806 [2024-11-28 04:16:20,678 INFO L226 Difference]: Without dead ends: 7805 [2024-11-28 04:16:20,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:16:20,679 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 68 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:20,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 590 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:16:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7805 states. [2024-11-28 04:16:21,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7805 to 7779. [2024-11-28 04:16:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 6991 states have (on average 1.2647689886997568) internal successors, (8842), 7007 states have internal predecessors, (8842), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-28 04:16:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 10380 transitions. [2024-11-28 04:16:21,809 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 10380 transitions. Word has length 190 [2024-11-28 04:16:21,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:21,810 INFO L471 AbstractCegarLoop]: Abstraction has 7779 states and 10380 transitions. [2024-11-28 04:16:21,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:16:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 10380 transitions. [2024-11-28 04:16:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:16:21,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:21,811 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 04:16:21,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-28 04:16:22,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:22,011 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:16:22,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash -642210678, now seen corresponding path program 9 times [2024-11-28 04:16:22,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:22,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281688562] [2024-11-28 04:16:22,012 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:16:22,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:22,034 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:16:22,034 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:16:22,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651587728] [2024-11-28 04:16:22,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:16:22,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:22,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:22,040 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:22,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f16569-586f-4a5f-8844-a39370c0aff6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-28 04:16:22,159 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:16:22,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:16:22,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:16:22,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:57,055 WARN L286 SmtUtils]: Spent 17.45s 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 04:17:19,648 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:17:33,262 WARN L286 SmtUtils]: Spent 9.15s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:17:56,457 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:18:44,011 WARN L286 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:18:52,491 WARN L286 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:19:02,229 WARN L286 SmtUtils]: Spent 9.73s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:19:11,307 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:19:19,136 WARN L286 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:19:35,735 WARN L286 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:20:18,877 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:21:28,544 WARN L286 SmtUtils]: Spent 11.76s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:21:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 57 proven. 147 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 04:21:54,838 INFO L312 TraceCheckSpWp]: Computing backward predicates...