./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.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_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/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_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/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_5388f56b-5c07-4c7d-9533-f59add7bc210/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 2d26d8e14d33b8c29eaf9ffa7603dd26966f962451e6c0726b154a73bf65f3d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:34:26,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:34:26,841 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:34:26,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:34:26,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:34:26,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:34:26,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:34:26,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:34:26,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:34:26,878 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:34:26,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:34:26,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:34:26,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:34:26,879 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:34:26,879 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:34:26,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:34:26,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:34:26,879 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:34:26,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:34:26,881 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:34:26,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:34:26,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:34:26,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:34:26,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:34:26,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:34:26,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:34:26,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:34:26,883 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_5388f56b-5c07-4c7d-9533-f59add7bc210/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 -> 2d26d8e14d33b8c29eaf9ffa7603dd26966f962451e6c0726b154a73bf65f3d2 [2024-11-28 04:34:27,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:34:27,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:34:27,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:34:27,217 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:34:27,217 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:34:27,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c [2024-11-28 04:34:30,114 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/data/6d993b009/36a6ce40702041699d3371c2df288652/FLAG1a3aee786 [2024-11-28 04:34:30,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:34:30,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c [2024-11-28 04:34:30,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/data/6d993b009/36a6ce40702041699d3371c2df288652/FLAG1a3aee786 [2024-11-28 04:34:30,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/data/6d993b009/36a6ce40702041699d3371c2df288652 [2024-11-28 04:34:30,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:34:30,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:34:30,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:34:30,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:34:30,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:34:30,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7546dc89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30, skipping insertion in model container [2024-11-28 04:34:30,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:34:30,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:34:30,750 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:34:30,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:34:30,793 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:34:30,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30 WrapperNode [2024-11-28 04:34:30,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:34:30,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:34:30,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:34:30,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:34:30,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,836 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2024-11-28 04:34:30,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:34:30,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:34:30,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:34:30,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:34:30,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,886 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 04:34:30,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:34:30,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:34:30,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:34:30,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:34:30,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (1/1) ... [2024-11-28 04:34:30,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:34:30,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:30,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:34:30,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:34:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:34:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:34:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:34:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:34:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:34:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:34:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:34:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:34:31,041 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:34:31,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:34:31,588 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2024-11-28 04:34:31,588 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:34:31,610 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:34:31,611 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:34:31,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:31 BoogieIcfgContainer [2024-11-28 04:34:31,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:34:31,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:34:31,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:34:31,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:34:31,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:34:30" (1/3) ... [2024-11-28 04:34:31,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da99f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:34:31, skipping insertion in model container [2024-11-28 04:34:31,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:30" (2/3) ... [2024-11-28 04:34:31,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da99f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:34:31, skipping insertion in model container [2024-11-28 04:34:31,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:31" (3/3) ... [2024-11-28 04:34:31,626 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound50.c [2024-11-28 04:34:31,644 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:34:31,646 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_unwindbound50.c that has 3 procedures, 146 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2024-11-28 04:34:31,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:34:31,737 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;@4b5c045b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:34:31,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-28 04:34:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 134 states have internal predecessors, (140), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:34:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:34:31,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:31,750 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:31,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:31,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:31,755 INFO L85 PathProgramCache]: Analyzing trace with hash 426625599, now seen corresponding path program 1 times [2024-11-28 04:34:31,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:31,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248211090] [2024-11-28 04:34:31,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:31,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:34:31,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:31,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248211090] [2024-11-28 04:34:31,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248211090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:31,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129849522] [2024-11-28 04:34:31,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:31,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:31,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:31,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:31,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:34:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:31,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:34:31,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:34:31,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:31,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129849522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:31,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:31,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:34:31,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748146146] [2024-11-28 04:34:31,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:31,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:34:31,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:32,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:34:32,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:34:32,016 INFO L87 Difference]: Start difference. First operand has 146 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 134 states have internal predecessors, (140), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:34:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:32,048 INFO L93 Difference]: Finished difference Result 288 states and 320 transitions. [2024-11-28 04:34:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:34:32,050 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-28 04:34:32,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:32,058 INFO L225 Difference]: With dead ends: 288 [2024-11-28 04:34:32,058 INFO L226 Difference]: Without dead ends: 139 [2024-11-28 04:34:32,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 04:34:32,065 INFO L435 NwaCegarLoop]: 154 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, 154 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 04:34:32,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:34:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-28 04:34:32,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-28 04:34:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 71 states have (on average 1.8450704225352113) internal successors, (131), 128 states have internal predecessors, (131), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:34:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2024-11-28 04:34:32,135 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 15 [2024-11-28 04:34:32,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:32,137 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2024-11-28 04:34:32,137 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:34:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2024-11-28 04:34:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:34:32,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:32,138 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:32,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:32,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:34:32,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:32,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1184948479, now seen corresponding path program 1 times [2024-11-28 04:34:32,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:32,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916476417] [2024-11-28 04:34:32,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:32,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916476417] [2024-11-28 04:34:32,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916476417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:32,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:32,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:32,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870622274] [2024-11-28 04:34:32,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:32,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:32,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:32,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:32,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:32,491 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:32,548 INFO L93 Difference]: Finished difference Result 139 states and 147 transitions. [2024-11-28 04:34:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:32,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-28 04:34:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:32,551 INFO L225 Difference]: With dead ends: 139 [2024-11-28 04:34:32,551 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 04:34:32,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:34:32,552 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 142 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:32,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 279 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:34:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 04:34:32,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-28 04:34:32,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 71 states have (on average 1.8309859154929577) internal successors, (130), 127 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:34:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2024-11-28 04:34:32,565 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 15 [2024-11-28 04:34:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:32,566 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2024-11-28 04:34:32,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:32,567 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2024-11-28 04:34:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:34:32,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:32,568 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:32,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:34:32,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:32,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1921302772, now seen corresponding path program 1 times [2024-11-28 04:34:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:32,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747324962] [2024-11-28 04:34:32,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:32,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:32,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:32,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:32,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747324962] [2024-11-28 04:34:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747324962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048150722] [2024-11-28 04:34:32,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:32,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:32,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:32,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:32,684 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:32,754 INFO L93 Difference]: Finished difference Result 202 states and 212 transitions. [2024-11-28 04:34:32,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:34:32,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-28 04:34:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:32,757 INFO L225 Difference]: With dead ends: 202 [2024-11-28 04:34:32,757 INFO L226 Difference]: Without dead ends: 142 [2024-11-28 04:34:32,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:34:32,759 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 8 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:32,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 414 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:34:32,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-28 04:34:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-28 04:34:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 75 states have (on average 1.7866666666666666) internal successors, (134), 131 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:34:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2024-11-28 04:34:32,784 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 16 [2024-11-28 04:34:32,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:32,784 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2024-11-28 04:34:32,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2024-11-28 04:34:32,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 04:34:32,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:32,785 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:32,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:34:32,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:32,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 463974865, now seen corresponding path program 1 times [2024-11-28 04:34:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:32,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480955112] [2024-11-28 04:34:32,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:32,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:32,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664775138] [2024-11-28 04:34:32,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:32,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:32,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:32,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:32,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:34:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:32,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:34:32,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:32,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:32,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:32,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:32,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480955112] [2024-11-28 04:34:32,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:32,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664775138] [2024-11-28 04:34:32,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664775138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:32,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:32,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:32,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668274279] [2024-11-28 04:34:32,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:32,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:32,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:32,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:32,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:32,943 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:33,277 INFO L93 Difference]: Finished difference Result 226 states and 273 transitions. [2024-11-28 04:34:33,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-28 04:34:33,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:33,279 INFO L225 Difference]: With dead ends: 226 [2024-11-28 04:34:33,279 INFO L226 Difference]: Without dead ends: 222 [2024-11-28 04:34:33,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 04:34:33,281 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 73 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:33,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 164 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-28 04:34:33,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 180. [2024-11-28 04:34:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 108 states have (on average 1.8148148148148149) internal successors, (196), 164 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 04:34:33,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 222 transitions. [2024-11-28 04:34:33,314 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 222 transitions. Word has length 18 [2024-11-28 04:34:33,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:33,314 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 222 transitions. [2024-11-28 04:34:33,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 222 transitions. [2024-11-28 04:34:33,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:34:33,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:33,315 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:33,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:33,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:33,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:33,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:33,516 INFO L85 PathProgramCache]: Analyzing trace with hash -796751821, now seen corresponding path program 1 times [2024-11-28 04:34:33,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:33,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251475043] [2024-11-28 04:34:33,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:33,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:33,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579078722] [2024-11-28 04:34:33,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:33,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:33,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:34:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:33,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:34:33,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:33,607 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:33,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:33,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251475043] [2024-11-28 04:34:33,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:33,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579078722] [2024-11-28 04:34:33,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579078722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:33,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:33,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:33,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927050741] [2024-11-28 04:34:33,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:33,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:33,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:33,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:33,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:33,609 INFO L87 Difference]: Start difference. First operand 180 states and 222 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:33,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:33,844 INFO L93 Difference]: Finished difference Result 285 states and 351 transitions. [2024-11-28 04:34:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:33,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-28 04:34:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:33,846 INFO L225 Difference]: With dead ends: 285 [2024-11-28 04:34:33,847 INFO L226 Difference]: Without dead ends: 277 [2024-11-28 04:34:33,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 04:34:33,849 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:33,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 241 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:34:33,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-28 04:34:33,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2024-11-28 04:34:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 158 states have (on average 1.7721518987341771) internal successors, (280), 214 states have internal predecessors, (280), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:34:33,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 318 transitions. [2024-11-28 04:34:33,880 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 318 transitions. Word has length 20 [2024-11-28 04:34:33,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:33,881 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 318 transitions. [2024-11-28 04:34:33,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 318 transitions. [2024-11-28 04:34:33,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 04:34:33,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:33,882 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:33,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:34:34,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:34,083 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:34,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:34,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1174319467, now seen corresponding path program 1 times [2024-11-28 04:34:34,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:34,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476464398] [2024-11-28 04:34:34,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:34,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:34,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138302557] [2024-11-28 04:34:34,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:34,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:34,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:34:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:34,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:34:34,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:34,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:34,298 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:34,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:34,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476464398] [2024-11-28 04:34:34,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:34,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138302557] [2024-11-28 04:34:34,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138302557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:34,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:34,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:34,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786737911] [2024-11-28 04:34:34,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:34,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:34,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:34,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:34,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:34,299 INFO L87 Difference]: Start difference. First operand 236 states and 318 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:34,669 INFO L93 Difference]: Finished difference Result 271 states and 337 transitions. [2024-11-28 04:34:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:34,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-28 04:34:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:34,671 INFO L225 Difference]: With dead ends: 271 [2024-11-28 04:34:34,672 INFO L226 Difference]: Without dead ends: 257 [2024-11-28 04:34:34,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 04:34:34,674 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 63 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:34,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 150 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-28 04:34:34,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 202. [2024-11-28 04:34:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 129 states have (on average 1.689922480620155) internal successors, (218), 185 states have internal predecessors, (218), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 04:34:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 246 transitions. [2024-11-28 04:34:34,697 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 246 transitions. Word has length 22 [2024-11-28 04:34:34,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:34,697 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 246 transitions. [2024-11-28 04:34:34,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:34:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 246 transitions. [2024-11-28 04:34:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:34:34,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:34,698 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:34:34,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:34,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:34:34,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:34,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1386249094, now seen corresponding path program 1 times [2024-11-28 04:34:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:34,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883493740] [2024-11-28 04:34:34,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:34,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884978854] [2024-11-28 04:34:34,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:34,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:34,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:34,919 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:34,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:34:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:34,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:34:34,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:35,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:35,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:35,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883493740] [2024-11-28 04:34:35,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:35,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884978854] [2024-11-28 04:34:35,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884978854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:35,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:35,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:35,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442969649] [2024-11-28 04:34:35,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:35,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:35,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:35,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:35,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:35,023 INFO L87 Difference]: Start difference. First operand 202 states and 246 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:35,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:35,269 INFO L93 Difference]: Finished difference Result 367 states and 469 transitions. [2024-11-28 04:34:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:35,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-28 04:34:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:35,273 INFO L225 Difference]: With dead ends: 367 [2024-11-28 04:34:35,273 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 04:34:35,273 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 04:34:35,274 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 216 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 04:34:35,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 216 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:34:35,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 04:34:35,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 283. [2024-11-28 04:34:35,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 201 states have (on average 1.681592039800995) internal successors, (338), 257 states have internal predecessors, (338), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 384 transitions. [2024-11-28 04:34:35,291 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 384 transitions. Word has length 29 [2024-11-28 04:34:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:35,291 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 384 transitions. [2024-11-28 04:34:35,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 384 transitions. [2024-11-28 04:34:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:34:35,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:35,292 INFO L218 NwaCegarLoop]: trace histogram [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 04:34:35,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:35,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 04:34:35,494 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:35,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash 745519688, now seen corresponding path program 1 times [2024-11-28 04:34:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:35,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776524345] [2024-11-28 04:34:35,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:35,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162274446] [2024-11-28 04:34:35,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:35,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:35,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:35,515 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:35,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:34:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:35,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:35,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:35,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:35,695 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:35,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:35,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776524345] [2024-11-28 04:34:35,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:35,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162274446] [2024-11-28 04:34:35,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162274446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:35,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:35,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:35,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756483661] [2024-11-28 04:34:35,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:35,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:35,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:35,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:35,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:35,698 INFO L87 Difference]: Start difference. First operand 283 states and 384 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:35,980 INFO L93 Difference]: Finished difference Result 337 states and 449 transitions. [2024-11-28 04:34:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:35,981 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-28 04:34:35,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:35,983 INFO L225 Difference]: With dead ends: 337 [2024-11-28 04:34:35,983 INFO L226 Difference]: Without dead ends: 335 [2024-11-28 04:34:35,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 04:34:35,984 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 223 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:35,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 163 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-28 04:34:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 283. [2024-11-28 04:34:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 201 states have (on average 1.6616915422885572) internal successors, (334), 257 states have internal predecessors, (334), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:36,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 380 transitions. [2024-11-28 04:34:36,008 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 380 transitions. Word has length 31 [2024-11-28 04:34:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:36,008 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 380 transitions. [2024-11-28 04:34:36,008 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 380 transitions. [2024-11-28 04:34:36,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:34:36,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:36,011 INFO L218 NwaCegarLoop]: trace histogram [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 04:34:36,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:36,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:36,217 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:36,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1636273918, now seen corresponding path program 1 times [2024-11-28 04:34:36,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:36,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801627220] [2024-11-28 04:34:36,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:36,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528942153] [2024-11-28 04:34:36,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:36,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:36,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:36,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:36,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:34:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:36,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:36,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:36,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:36,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:36,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801627220] [2024-11-28 04:34:36,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:36,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528942153] [2024-11-28 04:34:36,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528942153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:36,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:36,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:36,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12686648] [2024-11-28 04:34:36,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:36,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:36,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:36,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:36,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:36,431 INFO L87 Difference]: Start difference. First operand 283 states and 380 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:36,754 INFO L93 Difference]: Finished difference Result 337 states and 445 transitions. [2024-11-28 04:34:36,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:36,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-28 04:34:36,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:36,759 INFO L225 Difference]: With dead ends: 337 [2024-11-28 04:34:36,759 INFO L226 Difference]: Without dead ends: 335 [2024-11-28 04:34:36,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 04:34:36,761 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 230 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:36,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 158 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-28 04:34:36,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 283. [2024-11-28 04:34:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 201 states have (on average 1.6417910447761195) internal successors, (330), 257 states have internal predecessors, (330), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 376 transitions. [2024-11-28 04:34:36,791 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 376 transitions. Word has length 32 [2024-11-28 04:34:36,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:36,792 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 376 transitions. [2024-11-28 04:34:36,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:36,792 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 376 transitions. [2024-11-28 04:34:36,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:34:36,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:36,793 INFO L218 NwaCegarLoop]: trace histogram [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 04:34:36,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:36,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:36,997 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:36,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash -815116022, now seen corresponding path program 1 times [2024-11-28 04:34:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833266379] [2024-11-28 04:34:36,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349187960] [2024-11-28 04:34:37,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:37,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:37,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:37,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:37,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:34:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:37,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:37,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:37,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:37,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:37,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833266379] [2024-11-28 04:34:37,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:37,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349187960] [2024-11-28 04:34:37,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349187960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:37,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:37,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:37,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111082238] [2024-11-28 04:34:37,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:37,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:37,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:37,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:37,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:37,187 INFO L87 Difference]: Start difference. First operand 283 states and 376 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:37,871 INFO L93 Difference]: Finished difference Result 357 states and 449 transitions. [2024-11-28 04:34:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:37,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-28 04:34:37,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:37,875 INFO L225 Difference]: With dead ends: 357 [2024-11-28 04:34:37,875 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 04:34:37,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 04:34:37,877 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 90 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:37,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 242 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:34:37,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 04:34:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 284. [2024-11-28 04:34:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 202 states have (on average 1.6237623762376239) internal successors, (328), 258 states have internal predecessors, (328), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 374 transitions. [2024-11-28 04:34:37,908 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 374 transitions. Word has length 33 [2024-11-28 04:34:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:37,909 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 374 transitions. [2024-11-28 04:34:37,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 374 transitions. [2024-11-28 04:34:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:34:37,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:37,913 INFO L218 NwaCegarLoop]: trace histogram [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 04:34:37,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:34:38,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:34:38,118 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:38,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:38,118 INFO L85 PathProgramCache]: Analyzing trace with hash 501207168, now seen corresponding path program 1 times [2024-11-28 04:34:38,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:38,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532894697] [2024-11-28 04:34:38,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:38,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322284342] [2024-11-28 04:34:38,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:38,148 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:38,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:34:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:38,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:38,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:34:38,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:38,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:38,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532894697] [2024-11-28 04:34:38,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:38,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322284342] [2024-11-28 04:34:38,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322284342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:38,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:38,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:38,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713412849] [2024-11-28 04:34:38,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:38,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:38,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:38,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:38,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:38,392 INFO L87 Difference]: Start difference. First operand 284 states and 374 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:39,211 INFO L93 Difference]: Finished difference Result 357 states and 445 transitions. [2024-11-28 04:34:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-28 04:34:39,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:39,214 INFO L225 Difference]: With dead ends: 357 [2024-11-28 04:34:39,214 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 04:34:39,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 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 04:34:39,215 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 147 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:39,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 207 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:34:39,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 04:34:39,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 285. [2024-11-28 04:34:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 203 states have (on average 1.6059113300492611) internal successors, (326), 259 states have internal predecessors, (326), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 372 transitions. [2024-11-28 04:34:39,239 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 372 transitions. Word has length 34 [2024-11-28 04:34:39,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:39,240 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 372 transitions. [2024-11-28 04:34:39,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:34:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 372 transitions. [2024-11-28 04:34:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:34:39,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:39,241 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:39,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:39,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:39,446 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:39,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:39,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1395211415, now seen corresponding path program 1 times [2024-11-28 04:34:39,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:39,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224150033] [2024-11-28 04:34:39,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:39,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:39,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889783007] [2024-11-28 04:34:39,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:39,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:39,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:39,491 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:39,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:34:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:39,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:39,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:34:39,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:39,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:39,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224150033] [2024-11-28 04:34:39,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:39,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889783007] [2024-11-28 04:34:39,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889783007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:39,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:39,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:39,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392734517] [2024-11-28 04:34:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:39,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:39,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:39,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:39,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:39,713 INFO L87 Difference]: Start difference. First operand 285 states and 372 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:40,061 INFO L93 Difference]: Finished difference Result 308 states and 391 transitions. [2024-11-28 04:34:40,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:40,062 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-28 04:34:40,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:40,064 INFO L225 Difference]: With dead ends: 308 [2024-11-28 04:34:40,064 INFO L226 Difference]: Without dead ends: 306 [2024-11-28 04:34:40,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 04:34:40,066 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 216 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:40,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 159 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-28 04:34:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 286. [2024-11-28 04:34:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 204 states have (on average 1.5931372549019607) internal successors, (325), 260 states have internal predecessors, (325), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:40,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 371 transitions. [2024-11-28 04:34:40,093 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 371 transitions. Word has length 42 [2024-11-28 04:34:40,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:40,094 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 371 transitions. [2024-11-28 04:34:40,094 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:40,094 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 371 transitions. [2024-11-28 04:34:40,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:34:40,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:40,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:40,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:34:40,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:34:40,296 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:40,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:40,297 INFO L85 PathProgramCache]: Analyzing trace with hash -301880822, now seen corresponding path program 1 times [2024-11-28 04:34:40,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:40,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669416944] [2024-11-28 04:34:40,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:40,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:40,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602227050] [2024-11-28 04:34:40,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:40,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:40,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:40,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:40,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:34:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:40,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:40,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:34:40,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:40,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:40,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669416944] [2024-11-28 04:34:40,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:40,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602227050] [2024-11-28 04:34:40,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602227050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:40,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:40,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:40,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580074849] [2024-11-28 04:34:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:40,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:40,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:40,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:40,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:40,554 INFO L87 Difference]: Start difference. First operand 286 states and 371 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:40,865 INFO L93 Difference]: Finished difference Result 308 states and 388 transitions. [2024-11-28 04:34:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-11-28 04:34:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:40,868 INFO L225 Difference]: With dead ends: 308 [2024-11-28 04:34:40,868 INFO L226 Difference]: Without dead ends: 306 [2024-11-28 04:34:40,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 04:34:40,869 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 199 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:40,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 173 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-28 04:34:40,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 287. [2024-11-28 04:34:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 205 states have (on average 1.5804878048780489) internal successors, (324), 261 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 370 transitions. [2024-11-28 04:34:40,889 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 370 transitions. Word has length 43 [2024-11-28 04:34:40,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:40,890 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 370 transitions. [2024-11-28 04:34:40,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:40,890 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 370 transitions. [2024-11-28 04:34:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:34:40,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:40,891 INFO L218 NwaCegarLoop]: trace histogram [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 04:34:40,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:34:41,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:34:41,092 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:41,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:41,092 INFO L85 PathProgramCache]: Analyzing trace with hash -768370805, now seen corresponding path program 1 times [2024-11-28 04:34:41,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:41,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40549317] [2024-11-28 04:34:41,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:41,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533405793] [2024-11-28 04:34:41,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:41,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:41,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:41,114 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:41,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:34:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:41,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:41,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:34:41,242 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:41,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:41,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40549317] [2024-11-28 04:34:41,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:41,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533405793] [2024-11-28 04:34:41,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533405793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:41,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:41,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:41,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162036068] [2024-11-28 04:34:41,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:41,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:41,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:41,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:41,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:41,245 INFO L87 Difference]: Start difference. First operand 287 states and 370 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:41,654 INFO L93 Difference]: Finished difference Result 316 states and 377 transitions. [2024-11-28 04:34:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-11-28 04:34:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:41,656 INFO L225 Difference]: With dead ends: 316 [2024-11-28 04:34:41,657 INFO L226 Difference]: Without dead ends: 314 [2024-11-28 04:34:41,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 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 04:34:41,658 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 134 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 211 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 04:34:41,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 211 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:34:41,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-28 04:34:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 288. [2024-11-28 04:34:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 206 states have (on average 1.5679611650485437) internal successors, (323), 262 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:41,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 369 transitions. [2024-11-28 04:34:41,677 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 369 transitions. Word has length 44 [2024-11-28 04:34:41,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:41,677 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 369 transitions. [2024-11-28 04:34:41,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 369 transitions. [2024-11-28 04:34:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:34:41,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:41,678 INFO L218 NwaCegarLoop]: trace histogram [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 04:34:41,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:41,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:34:41,883 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:41,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1950308908, now seen corresponding path program 1 times [2024-11-28 04:34:41,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:41,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346774252] [2024-11-28 04:34:41,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:41,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:41,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823100720] [2024-11-28 04:34:41,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:41,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:41,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:41,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:34:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:41,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:41,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:34:42,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:42,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:42,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346774252] [2024-11-28 04:34:42,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:42,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823100720] [2024-11-28 04:34:42,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823100720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:42,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:42,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:42,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582992738] [2024-11-28 04:34:42,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:42,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:42,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:42,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:42,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:42,074 INFO L87 Difference]: Start difference. First operand 288 states and 369 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:42,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:42,645 INFO L93 Difference]: Finished difference Result 316 states and 374 transitions. [2024-11-28 04:34:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:42,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2024-11-28 04:34:42,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:42,647 INFO L225 Difference]: With dead ends: 316 [2024-11-28 04:34:42,647 INFO L226 Difference]: Without dead ends: 314 [2024-11-28 04:34:42,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 04:34:42,648 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:42,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 237 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:34:42,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-28 04:34:42,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 289. [2024-11-28 04:34:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 263 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:42,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 368 transitions. [2024-11-28 04:34:42,666 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 368 transitions. Word has length 45 [2024-11-28 04:34:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:42,667 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 368 transitions. [2024-11-28 04:34:42,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:34:42,667 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 368 transitions. [2024-11-28 04:34:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:34:42,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:42,668 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:42,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:42,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:34:42,869 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:42,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash -518818141, now seen corresponding path program 1 times [2024-11-28 04:34:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:42,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966008547] [2024-11-28 04:34:42,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:42,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:42,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966008547] [2024-11-28 04:34:42,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966008547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:42,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:42,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:42,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444918622] [2024-11-28 04:34:42,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:42,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:42,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:42,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:42,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:42,938 INFO L87 Difference]: Start difference. First operand 289 states and 368 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:34:43,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:43,013 INFO L93 Difference]: Finished difference Result 380 states and 485 transitions. [2024-11-28 04:34:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2024-11-28 04:34:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:43,017 INFO L225 Difference]: With dead ends: 380 [2024-11-28 04:34:43,018 INFO L226 Difference]: Without dead ends: 378 [2024-11-28 04:34:43,018 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 04:34:43,019 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 46 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:43,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 307 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:34:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-28 04:34:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 291. [2024-11-28 04:34:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 210 states have (on average 1.5333333333333334) internal successors, (322), 265 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 368 transitions. [2024-11-28 04:34:43,043 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 368 transitions. Word has length 52 [2024-11-28 04:34:43,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:43,043 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 368 transitions. [2024-11-28 04:34:43,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:34:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 368 transitions. [2024-11-28 04:34:43,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 04:34:43,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:43,046 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:43,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:34:43,046 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:43,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:43,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1096506943, now seen corresponding path program 1 times [2024-11-28 04:34:43,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:43,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776643058] [2024-11-28 04:34:43,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:43,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:43,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:43,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776643058] [2024-11-28 04:34:43,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776643058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:43,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:43,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:43,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438105725] [2024-11-28 04:34:43,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:43,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:43,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:43,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:43,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:43,112 INFO L87 Difference]: Start difference. First operand 291 states and 368 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:34:43,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:43,194 INFO L93 Difference]: Finished difference Result 379 states and 479 transitions. [2024-11-28 04:34:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:43,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2024-11-28 04:34:43,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:43,197 INFO L225 Difference]: With dead ends: 379 [2024-11-28 04:34:43,197 INFO L226 Difference]: Without dead ends: 377 [2024-11-28 04:34:43,197 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 04:34:43,198 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 45 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:43,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 307 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:34:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-28 04:34:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 293. [2024-11-28 04:34:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 213 states have (on average 1.5023474178403755) internal successors, (320), 267 states have internal predecessors, (320), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 366 transitions. [2024-11-28 04:34:43,218 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 366 transitions. Word has length 53 [2024-11-28 04:34:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:43,218 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 366 transitions. [2024-11-28 04:34:43,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:34:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 366 transitions. [2024-11-28 04:34:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:34:43,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:43,219 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:43,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:34:43,220 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:43,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash -367981295, now seen corresponding path program 1 times [2024-11-28 04:34:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:43,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769376024] [2024-11-28 04:34:43,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:43,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:43,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:43,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769376024] [2024-11-28 04:34:43,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769376024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:43,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:43,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:43,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125108062] [2024-11-28 04:34:43,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:43,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:43,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:43,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:43,341 INFO L87 Difference]: Start difference. First operand 293 states and 366 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (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 04:34:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:43,727 INFO L93 Difference]: Finished difference Result 378 states and 471 transitions. [2024-11-28 04:34:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:34:43,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (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 54 [2024-11-28 04:34:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:43,730 INFO L225 Difference]: With dead ends: 378 [2024-11-28 04:34:43,730 INFO L226 Difference]: Without dead ends: 377 [2024-11-28 04:34:43,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:34:43,731 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 177 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:43,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 189 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-28 04:34:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 293. [2024-11-28 04:34:43,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 213 states have (on average 1.4976525821596245) internal successors, (319), 267 states have internal predecessors, (319), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 365 transitions. [2024-11-28 04:34:43,750 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 365 transitions. Word has length 54 [2024-11-28 04:34:43,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:43,750 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 365 transitions. [2024-11-28 04:34:43,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (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 04:34:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 365 transitions. [2024-11-28 04:34:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:34:43,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:43,751 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:43,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:34:43,752 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:43,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash -367995197, now seen corresponding path program 1 times [2024-11-28 04:34:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:43,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109681223] [2024-11-28 04:34:43,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:43,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:43,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:43,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109681223] [2024-11-28 04:34:43,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109681223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:43,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:43,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:43,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85736536] [2024-11-28 04:34:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:43,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:43,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:43,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:43,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:43,855 INFO L87 Difference]: Start difference. First operand 293 states and 365 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (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 04:34:44,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:44,357 INFO L93 Difference]: Finished difference Result 380 states and 473 transitions. [2024-11-28 04:34:44,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:34:44,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (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 54 [2024-11-28 04:34:44,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:44,361 INFO L225 Difference]: With dead ends: 380 [2024-11-28 04:34:44,361 INFO L226 Difference]: Without dead ends: 379 [2024-11-28 04:34:44,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:34:44,362 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 186 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:44,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 174 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:34:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-28 04:34:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 295. [2024-11-28 04:34:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 215 states have (on average 1.4930232558139536) internal successors, (321), 269 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 367 transitions. [2024-11-28 04:34:44,384 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 367 transitions. Word has length 54 [2024-11-28 04:34:44,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:44,384 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 367 transitions. [2024-11-28 04:34:44,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (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 04:34:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 367 transitions. [2024-11-28 04:34:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 04:34:44,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:44,385 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:44,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:34:44,386 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:44,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1774104699, now seen corresponding path program 1 times [2024-11-28 04:34:44,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:44,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626259548] [2024-11-28 04:34:44,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:44,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:44,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626259548] [2024-11-28 04:34:44,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626259548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:44,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:44,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:44,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815280675] [2024-11-28 04:34:44,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:44,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:44,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:44,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:44,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:44,498 INFO L87 Difference]: Start difference. First operand 295 states and 367 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 04:34:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:44,783 INFO L93 Difference]: Finished difference Result 355 states and 435 transitions. [2024-11-28 04:34:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:44,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 57 [2024-11-28 04:34:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:44,785 INFO L225 Difference]: With dead ends: 355 [2024-11-28 04:34:44,786 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 04:34:44,786 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 04:34:44,787 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 47 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:44,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 178 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 04:34:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 305. [2024-11-28 04:34:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 225 states have (on average 1.4755555555555555) internal successors, (332), 279 states have internal predecessors, (332), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:34:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 378 transitions. [2024-11-28 04:34:44,811 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 378 transitions. Word has length 57 [2024-11-28 04:34:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:44,811 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 378 transitions. [2024-11-28 04:34:44,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 04:34:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 378 transitions. [2024-11-28 04:34:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:34:44,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:44,813 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-28 04:34:44,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:34:44,813 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:44,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -292810284, now seen corresponding path program 1 times [2024-11-28 04:34:44,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:44,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592179773] [2024-11-28 04:34:44,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:44,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:44,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592179773] [2024-11-28 04:34:44,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592179773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:44,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735870549] [2024-11-28 04:34:44,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:44,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:44,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:44,967 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:44,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:34:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:45,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:45,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:45,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:45,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735870549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:45,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:45,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:34:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296866797] [2024-11-28 04:34:45,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:45,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:34:45,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:45,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:34:45,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:34:45,159 INFO L87 Difference]: Start difference. First operand 305 states and 378 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:34:45,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:45,277 INFO L93 Difference]: Finished difference Result 397 states and 486 transitions. [2024-11-28 04:34:45,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:34:45,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-28 04:34:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:45,281 INFO L225 Difference]: With dead ends: 397 [2024-11-28 04:34:45,281 INFO L226 Difference]: Without dead ends: 396 [2024-11-28 04:34:45,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:34:45,283 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 104 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:45,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 611 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:34:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-28 04:34:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 358. [2024-11-28 04:34:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 270 states have (on average 1.4814814814814814) internal successors, (400), 325 states have internal predecessors, (400), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 04:34:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 462 transitions. [2024-11-28 04:34:45,317 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 462 transitions. Word has length 61 [2024-11-28 04:34:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:45,318 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 462 transitions. [2024-11-28 04:34:45,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:34:45,318 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 462 transitions. [2024-11-28 04:34:45,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:34:45,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:45,319 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:45,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:34:45,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:45,520 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:45,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2077160089, now seen corresponding path program 1 times [2024-11-28 04:34:45,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:45,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342084632] [2024-11-28 04:34:45,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:45,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250377017] [2024-11-28 04:34:45,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:45,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:45,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:45,545 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:45,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:34:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:45,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:34:45,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:45,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:48,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:48,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342084632] [2024-11-28 04:34:48,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:48,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250377017] [2024-11-28 04:34:48,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250377017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:48,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:48,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:34:48,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016198347] [2024-11-28 04:34:48,773 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:48,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:48,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:48,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:48,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2024-11-28 04:34:48,774 INFO L87 Difference]: Start difference. First operand 358 states and 462 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 04:34:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:49,121 INFO L93 Difference]: Finished difference Result 408 states and 527 transitions. [2024-11-28 04:34:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:49,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 63 [2024-11-28 04:34:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:49,126 INFO L225 Difference]: With dead ends: 408 [2024-11-28 04:34:49,126 INFO L226 Difference]: Without dead ends: 406 [2024-11-28 04:34:49,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2024-11-28 04:34:49,130 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 78 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:49,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 144 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:49,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-28 04:34:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 360. [2024-11-28 04:34:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 272 states have (on average 1.474264705882353) internal successors, (401), 327 states have internal predecessors, (401), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 04:34:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 463 transitions. [2024-11-28 04:34:49,172 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 463 transitions. Word has length 63 [2024-11-28 04:34:49,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:49,173 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 463 transitions. [2024-11-28 04:34:49,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 04:34:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 463 transitions. [2024-11-28 04:34:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:34:49,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:49,175 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:49,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:49,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:49,376 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:49,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:49,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2077160228, now seen corresponding path program 1 times [2024-11-28 04:34:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:49,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032853270] [2024-11-28 04:34:49,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:49,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:49,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:49,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032853270] [2024-11-28 04:34:49,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032853270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:49,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135927056] [2024-11-28 04:34:49,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:49,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:49,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:49,542 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:49,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:34:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:49,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:34:49,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:49,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:49,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135927056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:34:49,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:34:49,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 6] total 13 [2024-11-28 04:34:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449114353] [2024-11-28 04:34:49,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:49,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:34:49,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:49,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:34:49,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:34:49,980 INFO L87 Difference]: Start difference. First operand 360 states and 463 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:34:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:51,818 INFO L93 Difference]: Finished difference Result 964 states and 1155 transitions. [2024-11-28 04:34:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 04:34:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 63 [2024-11-28 04:34:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:51,823 INFO L225 Difference]: With dead ends: 964 [2024-11-28 04:34:51,824 INFO L226 Difference]: Without dead ends: 862 [2024-11-28 04:34:51,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:34:51,828 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 849 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:51,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 695 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:34:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-28 04:34:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 690. [2024-11-28 04:34:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 568 states have (on average 1.4595070422535212) internal successors, (829), 628 states have internal predecessors, (829), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:34:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 953 transitions. [2024-11-28 04:34:51,898 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 953 transitions. Word has length 63 [2024-11-28 04:34:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:51,899 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 953 transitions. [2024-11-28 04:34:51,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:34:51,899 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 953 transitions. [2024-11-28 04:34:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:34:51,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:51,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:51,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:52,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:52,102 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:52,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1469782244, now seen corresponding path program 1 times [2024-11-28 04:34:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:52,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546064812] [2024-11-28 04:34:52,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:52,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:52,281 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 04:34:52,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:52,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546064812] [2024-11-28 04:34:52,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546064812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:52,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199737759] [2024-11-28 04:34:52,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:52,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:52,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:52,283 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:52,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:34:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:52,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:34:52,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:52,632 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 04:34:52,632 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:52,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199737759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:52,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:52,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-28 04:34:52,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467563362] [2024-11-28 04:34:52,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:52,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:52,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:52,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:34:52,634 INFO L87 Difference]: Start difference. First operand 690 states and 953 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 04:34:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:53,308 INFO L93 Difference]: Finished difference Result 737 states and 1025 transitions. [2024-11-28 04:34:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:34:53,309 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), 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 65 [2024-11-28 04:34:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:53,313 INFO L225 Difference]: With dead ends: 737 [2024-11-28 04:34:53,313 INFO L226 Difference]: Without dead ends: 736 [2024-11-28 04:34:53,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:34:53,314 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 90 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:53,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 137 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:34:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-28 04:34:53,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 690. [2024-11-28 04:34:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 568 states have (on average 1.4524647887323943) internal successors, (825), 628 states have internal predecessors, (825), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:34:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 949 transitions. [2024-11-28 04:34:53,378 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 949 transitions. Word has length 65 [2024-11-28 04:34:53,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:53,379 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 949 transitions. [2024-11-28 04:34:53,379 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), 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 04:34:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 949 transitions. [2024-11-28 04:34:53,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:34:53,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:53,380 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:53,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:34:53,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:53,584 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:53,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:53,585 INFO L85 PathProgramCache]: Analyzing trace with hash -32546628, now seen corresponding path program 1 times [2024-11-28 04:34:53,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:53,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990289215] [2024-11-28 04:34:53,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:53,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:53,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159926774] [2024-11-28 04:34:53,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:53,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:53,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:53,604 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:53,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:34:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:53,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:34:53,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:34:53,948 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:54,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:54,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990289215] [2024-11-28 04:34:54,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:54,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159926774] [2024-11-28 04:34:54,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159926774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:54,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:54,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:34:54,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508455495] [2024-11-28 04:34:54,264 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:54,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:54,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:54,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:54,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:34:54,265 INFO L87 Difference]: Start difference. First operand 690 states and 949 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 04:34:54,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:54,593 INFO L93 Difference]: Finished difference Result 732 states and 1006 transitions. [2024-11-28 04:34:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:54,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 64 [2024-11-28 04:34:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:54,600 INFO L225 Difference]: With dead ends: 732 [2024-11-28 04:34:54,600 INFO L226 Difference]: Without dead ends: 730 [2024-11-28 04:34:54,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 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 04:34:54,602 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 78 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:54,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 150 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:34:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-28 04:34:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 693. [2024-11-28 04:34:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.4430823117338003) internal successors, (824), 631 states have internal predecessors, (824), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:34:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 948 transitions. [2024-11-28 04:34:54,686 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 948 transitions. Word has length 64 [2024-11-28 04:34:54,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:54,687 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 948 transitions. [2024-11-28 04:34:54,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 04:34:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 948 transitions. [2024-11-28 04:34:54,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:34:54,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:54,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:54,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:54,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:34:54,893 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:54,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:54,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1681390839, now seen corresponding path program 1 times [2024-11-28 04:34:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:54,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032108910] [2024-11-28 04:34:54,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:54,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:34:55,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:55,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032108910] [2024-11-28 04:34:55,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032108910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:55,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96658448] [2024-11-28 04:34:55,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:55,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:55,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:55,166 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:55,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:34:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:55,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:34:55,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:55,543 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 04:34:55,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:55,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96658448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:55,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:55,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-28 04:34:55,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978880233] [2024-11-28 04:34:55,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:55,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:55,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:55,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:55,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:34:55,545 INFO L87 Difference]: Start difference. First operand 693 states and 948 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 04:34:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:56,271 INFO L93 Difference]: Finished difference Result 737 states and 1014 transitions. [2024-11-28 04:34:56,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:56,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 66 [2024-11-28 04:34:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:56,278 INFO L225 Difference]: With dead ends: 737 [2024-11-28 04:34:56,278 INFO L226 Difference]: Without dead ends: 736 [2024-11-28 04:34:56,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 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 04:34:56,279 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 87 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:56,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 148 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:34:56,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-28 04:34:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 693. [2024-11-28 04:34:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.436077057793345) internal successors, (820), 631 states have internal predecessors, (820), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:34:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 944 transitions. [2024-11-28 04:34:56,348 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 944 transitions. Word has length 66 [2024-11-28 04:34:56,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:56,348 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 944 transitions. [2024-11-28 04:34:56,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 04:34:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 944 transitions. [2024-11-28 04:34:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:34:56,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:56,349 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:56,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:56,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:34:56,553 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:56,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:56,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1066068829, now seen corresponding path program 1 times [2024-11-28 04:34:56,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:56,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987861215] [2024-11-28 04:34:56,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:56,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:56,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898478128] [2024-11-28 04:34:56,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:56,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:56,573 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:56,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:34:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:56,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:56,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 04:34:56,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:56,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:56,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987861215] [2024-11-28 04:34:56,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:56,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898478128] [2024-11-28 04:34:56,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898478128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:56,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:56,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:56,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253947518] [2024-11-28 04:34:56,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:56,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:56,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:56,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:56,741 INFO L87 Difference]: Start difference. First operand 693 states and 944 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 04:34:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:57,263 INFO L93 Difference]: Finished difference Result 745 states and 995 transitions. [2024-11-28 04:34:57,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:57,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 67 [2024-11-28 04:34:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:57,267 INFO L225 Difference]: With dead ends: 745 [2024-11-28 04:34:57,267 INFO L226 Difference]: Without dead ends: 744 [2024-11-28 04:34:57,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 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 04:34:57,269 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 80 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:57,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 226 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:34:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-28 04:34:57,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 693. [2024-11-28 04:34:57,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.4308231173380035) internal successors, (817), 631 states have internal predecessors, (817), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:34:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 941 transitions. [2024-11-28 04:34:57,352 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 941 transitions. Word has length 67 [2024-11-28 04:34:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:57,353 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 941 transitions. [2024-11-28 04:34:57,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 04:34:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 941 transitions. [2024-11-28 04:34:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:34:57,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:57,354 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:57,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:34:57,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:34:57,559 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:57,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1311604608, now seen corresponding path program 1 times [2024-11-28 04:34:57,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:57,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607138562] [2024-11-28 04:34:57,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:57,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:57,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834796822] [2024-11-28 04:34:57,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:57,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:57,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:57,578 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:57,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:34:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:57,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:34:57,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 04:34:57,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:57,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:57,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607138562] [2024-11-28 04:34:57,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:57,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834796822] [2024-11-28 04:34:57,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834796822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:57,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:57,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:34:57,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373274113] [2024-11-28 04:34:57,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:57,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:34:57,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:57,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:34:57,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:34:57,868 INFO L87 Difference]: Start difference. First operand 693 states and 941 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 04:34:58,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:58,376 INFO L93 Difference]: Finished difference Result 747 states and 992 transitions. [2024-11-28 04:34:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:34:58,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 68 [2024-11-28 04:34:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:58,380 INFO L225 Difference]: With dead ends: 747 [2024-11-28 04:34:58,380 INFO L226 Difference]: Without dead ends: 744 [2024-11-28 04:34:58,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 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 04:34:58,381 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 119 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:58,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 177 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:34:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-28 04:34:58,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 702. [2024-11-28 04:34:58,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 580 states have (on average 1.4206896551724137) internal successors, (824), 640 states have internal predecessors, (824), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:34:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 948 transitions. [2024-11-28 04:34:58,444 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 948 transitions. Word has length 68 [2024-11-28 04:34:58,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:58,444 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 948 transitions. [2024-11-28 04:34:58,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 04:34:58,444 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 948 transitions. [2024-11-28 04:34:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 04:34:58,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:58,449 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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 04:34:58,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:34:58,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:34:58,652 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:34:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1650906864, now seen corresponding path program 1 times [2024-11-28 04:34:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052258623] [2024-11-28 04:34:58,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:34:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617009190] [2024-11-28 04:34:58,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:58,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:58,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:58,680 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:58,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:34:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:58,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:34:58,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:34:59,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:59,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:59,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052258623] [2024-11-28 04:34:59,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:59,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617009190] [2024-11-28 04:34:59,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617009190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:59,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:59,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:34:59,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097754756] [2024-11-28 04:34:59,431 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:59,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:34:59,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:59,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:34:59,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:34:59,432 INFO L87 Difference]: Start difference. First operand 702 states and 948 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:00,197 INFO L93 Difference]: Finished difference Result 859 states and 1165 transitions. [2024-11-28 04:35:00,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:35:00,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 74 [2024-11-28 04:35:00,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:00,201 INFO L225 Difference]: With dead ends: 859 [2024-11-28 04:35:00,201 INFO L226 Difference]: Without dead ends: 855 [2024-11-28 04:35:00,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:00,206 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 390 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:00,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 331 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:35:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-28 04:35:00,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 763. [2024-11-28 04:35:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 633 states have (on average 1.4360189573459716) internal successors, (909), 695 states have internal predecessors, (909), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1049 transitions. [2024-11-28 04:35:00,287 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1049 transitions. Word has length 74 [2024-11-28 04:35:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:00,287 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1049 transitions. [2024-11-28 04:35:00,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1049 transitions. [2024-11-28 04:35:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:35:00,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:00,289 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-28 04:35:00,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:35:00,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:35:00,493 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:00,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash -361494702, now seen corresponding path program 1 times [2024-11-28 04:35:00,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:00,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167909661] [2024-11-28 04:35:00,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:00,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721739530] [2024-11-28 04:35:00,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:00,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:00,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:00,519 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:00,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:35:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:00,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:35:00,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:35:01,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:01,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:01,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167909661] [2024-11-28 04:35:01,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:01,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721739530] [2024-11-28 04:35:01,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721739530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:01,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:01,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:35:01,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596442162] [2024-11-28 04:35:01,551 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:01,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:01,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:01,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:01,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:01,552 INFO L87 Difference]: Start difference. First operand 763 states and 1049 transitions. Second operand has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:02,161 INFO L93 Difference]: Finished difference Result 785 states and 1062 transitions. [2024-11-28 04:35:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:02,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 75 [2024-11-28 04:35:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:02,165 INFO L225 Difference]: With dead ends: 785 [2024-11-28 04:35:02,165 INFO L226 Difference]: Without dead ends: 779 [2024-11-28 04:35:02,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:35:02,167 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 149 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:02,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 425 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:35:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-28 04:35:02,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 757. [2024-11-28 04:35:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 633 states have (on average 1.387045813586098) internal successors, (878), 689 states have internal predecessors, (878), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1018 transitions. [2024-11-28 04:35:02,260 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1018 transitions. Word has length 75 [2024-11-28 04:35:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:02,260 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1018 transitions. [2024-11-28 04:35:02,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1018 transitions. [2024-11-28 04:35:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 04:35:02,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:02,263 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-28 04:35:02,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:02,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:02,468 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:02,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1678566194, now seen corresponding path program 1 times [2024-11-28 04:35:02,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:02,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502469067] [2024-11-28 04:35:02,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:02,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284363924] [2024-11-28 04:35:02,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:02,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:02,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:02,491 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:02,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:35:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:02,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:35:02,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:35:03,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:03,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502469067] [2024-11-28 04:35:03,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284363924] [2024-11-28 04:35:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284363924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:03,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:03,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:35:03,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317554353] [2024-11-28 04:35:03,410 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:03,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:35:03,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:03,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:35:03,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:03,412 INFO L87 Difference]: Start difference. First operand 757 states and 1018 transitions. Second operand has 9 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:04,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:04,698 INFO L93 Difference]: Finished difference Result 994 states and 1384 transitions. [2024-11-28 04:35:04,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:35:04,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 76 [2024-11-28 04:35:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:04,704 INFO L225 Difference]: With dead ends: 994 [2024-11-28 04:35:04,704 INFO L226 Difference]: Without dead ends: 986 [2024-11-28 04:35:04,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:35:04,705 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 564 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:04,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 271 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:35:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-11-28 04:35:04,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 952. [2024-11-28 04:35:04,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 808 states have (on average 1.426980198019802) internal successors, (1153), 866 states have internal predecessors, (1153), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 79 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 04:35:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1333 transitions. [2024-11-28 04:35:04,831 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1333 transitions. Word has length 76 [2024-11-28 04:35:04,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:04,832 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1333 transitions. [2024-11-28 04:35:04,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1333 transitions. [2024-11-28 04:35:04,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:35:04,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:04,834 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-28 04:35:04,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:05,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:05,034 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:05,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash 495944532, now seen corresponding path program 1 times [2024-11-28 04:35:05,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868467795] [2024-11-28 04:35:05,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:05,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:05,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674371362] [2024-11-28 04:35:05,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:05,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:05,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:05,059 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:05,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:35:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:05,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:35:05,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:05,738 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:35:05,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:06,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:06,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868467795] [2024-11-28 04:35:06,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:06,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674371362] [2024-11-28 04:35:06,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674371362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:06,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:06,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:35:06,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113112038] [2024-11-28 04:35:06,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:06,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:35:06,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:06,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:35:06,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:06,287 INFO L87 Difference]: Start difference. First operand 952 states and 1333 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:07,504 INFO L93 Difference]: Finished difference Result 1074 states and 1503 transitions. [2024-11-28 04:35:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:35:07,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77 [2024-11-28 04:35:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:07,509 INFO L225 Difference]: With dead ends: 1074 [2024-11-28 04:35:07,509 INFO L226 Difference]: Without dead ends: 1072 [2024-11-28 04:35:07,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:35:07,515 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 371 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:07,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 345 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:35:07,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-28 04:35:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 999. [2024-11-28 04:35:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 850 states have (on average 1.4164705882352941) internal successors, (1204), 908 states have internal predecessors, (1204), 95 states have call successors, (95), 6 states have call predecessors, (95), 6 states have return successors, (95), 84 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 04:35:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1394 transitions. [2024-11-28 04:35:07,616 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1394 transitions. Word has length 77 [2024-11-28 04:35:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:07,617 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1394 transitions. [2024-11-28 04:35:07,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1394 transitions. [2024-11-28 04:35:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:35:07,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:07,618 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-28 04:35:07,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:35:07,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 04:35:07,823 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:07,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1805588620, now seen corresponding path program 1 times [2024-11-28 04:35:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:07,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416419535] [2024-11-28 04:35:07,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:07,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809088402] [2024-11-28 04:35:07,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:07,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:07,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:07,847 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:07,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:35:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:07,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:35:07,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:35:08,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:08,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:08,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416419535] [2024-11-28 04:35:08,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:08,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809088402] [2024-11-28 04:35:08,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809088402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:08,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:08,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:35:08,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46725942] [2024-11-28 04:35:08,598 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:08,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:35:08,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:08,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:35:08,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:35:08,599 INFO L87 Difference]: Start difference. First operand 999 states and 1394 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:10,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:10,507 INFO L93 Difference]: Finished difference Result 1083 states and 1498 transitions. [2024-11-28 04:35:10,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:35:10,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2024-11-28 04:35:10,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:10,511 INFO L225 Difference]: With dead ends: 1083 [2024-11-28 04:35:10,511 INFO L226 Difference]: Without dead ends: 997 [2024-11-28 04:35:10,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:35:10,513 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 342 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:10,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 436 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:35:10,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-28 04:35:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 865. [2024-11-28 04:35:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 732 states have (on average 1.4207650273224044) internal successors, (1040), 788 states have internal predecessors, (1040), 79 states have call successors, (79), 6 states have call predecessors, (79), 6 states have return successors, (79), 70 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:35:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1198 transitions. [2024-11-28 04:35:10,591 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1198 transitions. Word has length 78 [2024-11-28 04:35:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:10,591 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1198 transitions. [2024-11-28 04:35:10,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1198 transitions. [2024-11-28 04:35:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:35:10,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:10,592 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-28 04:35:10,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:35:10,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 04:35:10,797 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:10,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash -138672298, now seen corresponding path program 1 times [2024-11-28 04:35:10,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:10,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634060280] [2024-11-28 04:35:10,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:10,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:10,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200354606] [2024-11-28 04:35:10,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:10,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:10,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:10,822 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:10,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:35:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:10,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:35:10,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:35:11,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:11,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:11,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634060280] [2024-11-28 04:35:11,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:11,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200354606] [2024-11-28 04:35:11,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200354606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:11,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:11,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:35:11,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686628426] [2024-11-28 04:35:11,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:11,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:11,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:11,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:11,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:11,454 INFO L87 Difference]: Start difference. First operand 865 states and 1198 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:12,201 INFO L93 Difference]: Finished difference Result 949 states and 1314 transitions. [2024-11-28 04:35:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:12,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 79 [2024-11-28 04:35:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:12,205 INFO L225 Difference]: With dead ends: 949 [2024-11-28 04:35:12,205 INFO L226 Difference]: Without dead ends: 945 [2024-11-28 04:35:12,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:12,206 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 254 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:12,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 381 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:35:12,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-28 04:35:12,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 927. [2024-11-28 04:35:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 790 states have (on average 1.4063291139240506) internal successors, (1111), 844 states have internal predecessors, (1111), 85 states have call successors, (85), 6 states have call predecessors, (85), 6 states have return successors, (85), 76 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 04:35:12,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1281 transitions. [2024-11-28 04:35:12,287 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1281 transitions. Word has length 79 [2024-11-28 04:35:12,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:12,287 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1281 transitions. [2024-11-28 04:35:12,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:35:12,288 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1281 transitions. [2024-11-28 04:35:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:35:12,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:12,289 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-28 04:35:12,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:12,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:35:12,494 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:12,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:12,494 INFO L85 PathProgramCache]: Analyzing trace with hash 174877199, now seen corresponding path program 1 times [2024-11-28 04:35:12,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:12,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496710557] [2024-11-28 04:35:12,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227457516] [2024-11-28 04:35:12,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:12,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:12,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:12,512 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:12,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:35:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:12,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:35:12,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 04:35:13,015 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:13,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:13,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496710557] [2024-11-28 04:35:13,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:13,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227457516] [2024-11-28 04:35:13,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227457516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:13,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:13,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:35:13,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518844893] [2024-11-28 04:35:13,146 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:13,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:13,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:13,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:13,147 INFO L87 Difference]: Start difference. First operand 927 states and 1281 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:35:13,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:13,708 INFO L93 Difference]: Finished difference Result 1177 states and 1663 transitions. [2024-11-28 04:35:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:35:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 85 [2024-11-28 04:35:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:13,712 INFO L225 Difference]: With dead ends: 1177 [2024-11-28 04:35:13,712 INFO L226 Difference]: Without dead ends: 1175 [2024-11-28 04:35:13,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:13,713 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 367 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:13,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 319 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:35:13,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2024-11-28 04:35:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1133. [2024-11-28 04:35:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 973 states have (on average 1.4409044193216856) internal successors, (1402), 1028 states have internal predecessors, (1402), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 98 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:35:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1618 transitions. [2024-11-28 04:35:13,808 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1618 transitions. Word has length 85 [2024-11-28 04:35:13,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:13,809 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1618 transitions. [2024-11-28 04:35:13,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:35:13,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1618 transitions. [2024-11-28 04:35:13,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:35:13,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:13,810 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-28 04:35:13,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:35:14,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:35:14,011 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:14,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:14,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1126225952, now seen corresponding path program 1 times [2024-11-28 04:35:14,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:14,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901505035] [2024-11-28 04:35:14,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:14,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:14,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899982154] [2024-11-28 04:35:14,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:14,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:14,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:14,029 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:14,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:35:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:14,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:35:14,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 04:35:14,488 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:14,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901505035] [2024-11-28 04:35:14,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899982154] [2024-11-28 04:35:14,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899982154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:14,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:14,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:35:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957441281] [2024-11-28 04:35:14,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:14,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:14,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:14,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:14,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:14,866 INFO L87 Difference]: Start difference. First operand 1133 states and 1618 transitions. Second operand has 8 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:35:15,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:15,240 INFO L93 Difference]: Finished difference Result 1138 states and 1618 transitions. [2024-11-28 04:35:15,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:15,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 86 [2024-11-28 04:35:15,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:15,243 INFO L225 Difference]: With dead ends: 1138 [2024-11-28 04:35:15,243 INFO L226 Difference]: Without dead ends: 1132 [2024-11-28 04:35:15,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:35:15,244 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 205 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:15,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 290 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:35:15,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-28 04:35:15,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 925. [2024-11-28 04:35:15,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 793 states have (on average 1.3467843631778058) internal successors, (1068), 839 states have internal predecessors, (1068), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:35:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1240 transitions. [2024-11-28 04:35:15,318 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1240 transitions. Word has length 86 [2024-11-28 04:35:15,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:15,318 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1240 transitions. [2024-11-28 04:35:15,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:35:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1240 transitions. [2024-11-28 04:35:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:35:15,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:15,319 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:15,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:15,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:35:15,519 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:15,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:15,520 INFO L85 PathProgramCache]: Analyzing trace with hash -887099821, now seen corresponding path program 1 times [2024-11-28 04:35:15,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:15,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063830834] [2024-11-28 04:35:15,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:15,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:15,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572838692] [2024-11-28 04:35:15,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:15,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:15,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:15,536 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:15,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:35:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:15,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:35:15,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 9 proven. 29 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 04:35:16,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:16,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:16,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063830834] [2024-11-28 04:35:16,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:16,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572838692] [2024-11-28 04:35:16,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572838692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:16,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:16,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:35:16,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870901047] [2024-11-28 04:35:16,135 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:16,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:35:16,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:16,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:35:16,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:35:16,136 INFO L87 Difference]: Start difference. First operand 925 states and 1240 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:35:17,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:17,236 INFO L93 Difference]: Finished difference Result 1169 states and 1609 transitions. [2024-11-28 04:35:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:35:17,237 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2024-11-28 04:35:17,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:17,240 INFO L225 Difference]: With dead ends: 1169 [2024-11-28 04:35:17,240 INFO L226 Difference]: Without dead ends: 1165 [2024-11-28 04:35:17,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:35:17,241 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 307 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:17,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 349 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:35:17,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-28 04:35:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1047. [2024-11-28 04:35:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 901 states have (on average 1.3706992230854607) internal successors, (1235), 949 states have internal predecessors, (1235), 100 states have call successors, (100), 6 states have call predecessors, (100), 6 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 04:35:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1435 transitions. [2024-11-28 04:35:17,327 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1435 transitions. Word has length 89 [2024-11-28 04:35:17,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:17,327 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1435 transitions. [2024-11-28 04:35:17,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:35:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1435 transitions. [2024-11-28 04:35:17,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:35:17,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:17,328 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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] [2024-11-28 04:35:17,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 04:35:17,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:35:17,532 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:17,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:17,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1730290588, now seen corresponding path program 1 times [2024-11-28 04:35:17,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:17,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074100694] [2024-11-28 04:35:17,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:17,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:17,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141293140] [2024-11-28 04:35:17,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:17,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:17,551 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:17,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:35:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:17,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:35:17,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 04:35:17,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:18,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:18,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074100694] [2024-11-28 04:35:18,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:18,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141293140] [2024-11-28 04:35:18,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141293140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:18,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:18,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:35:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802869301] [2024-11-28 04:35:18,088 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:18,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:18,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:18,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:18,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:18,090 INFO L87 Difference]: Start difference. First operand 1047 states and 1435 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:35:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:18,983 INFO L93 Difference]: Finished difference Result 1100 states and 1511 transitions. [2024-11-28 04:35:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:18,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 90 [2024-11-28 04:35:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:18,986 INFO L225 Difference]: With dead ends: 1100 [2024-11-28 04:35:18,986 INFO L226 Difference]: Without dead ends: 1096 [2024-11-28 04:35:18,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:18,987 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 221 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:18,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 360 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:35:18,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-11-28 04:35:19,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1078. [2024-11-28 04:35:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 931 states have (on average 1.364124597207304) internal successors, (1270), 976 states have internal predecessors, (1270), 103 states have call successors, (103), 6 states have call predecessors, (103), 6 states have return successors, (103), 95 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 04:35:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1476 transitions. [2024-11-28 04:35:19,067 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1476 transitions. Word has length 90 [2024-11-28 04:35:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:19,068 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1476 transitions. [2024-11-28 04:35:19,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 04:35:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1476 transitions. [2024-11-28 04:35:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:35:19,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:19,069 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:19,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:19,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:35:19,274 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:19,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:19,274 INFO L85 PathProgramCache]: Analyzing trace with hash -759868533, now seen corresponding path program 1 times [2024-11-28 04:35:19,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:19,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296330831] [2024-11-28 04:35:19,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:19,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:19,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:19,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296330831] [2024-11-28 04:35:19,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296330831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:19,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493964755] [2024-11-28 04:35:19,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:19,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:19,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:19,392 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:19,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:35:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:19,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:35:19,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:19,677 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:19,678 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:19,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493964755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:19,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:19,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-11-28 04:35:19,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927331072] [2024-11-28 04:35:19,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:19,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:35:19,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:19,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:35:19,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:35:19,917 INFO L87 Difference]: Start difference. First operand 1078 states and 1476 transitions. Second operand has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 16 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:35:21,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:21,588 INFO L93 Difference]: Finished difference Result 1619 states and 2132 transitions. [2024-11-28 04:35:21,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-28 04:35:21,589 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 16 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 99 [2024-11-28 04:35:21,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:21,593 INFO L225 Difference]: With dead ends: 1619 [2024-11-28 04:35:21,593 INFO L226 Difference]: Without dead ends: 1617 [2024-11-28 04:35:21,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=910, Invalid=2630, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 04:35:21,595 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 1943 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:21,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 760 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:35:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-28 04:35:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1221. [2024-11-28 04:35:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1061 states have (on average 1.3722902921771913) internal successors, (1456), 1106 states have internal predecessors, (1456), 116 states have call successors, (116), 6 states have call predecessors, (116), 6 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 04:35:21,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1688 transitions. [2024-11-28 04:35:21,684 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1688 transitions. Word has length 99 [2024-11-28 04:35:21,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:21,685 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1688 transitions. [2024-11-28 04:35:21,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 16 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:35:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1688 transitions. [2024-11-28 04:35:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:35:21,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:21,686 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:21,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:35:21,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:35:21,886 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:21,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash 160660711, now seen corresponding path program 1 times [2024-11-28 04:35:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:21,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396345419] [2024-11-28 04:35:21,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:21,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:21,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396345419] [2024-11-28 04:35:21,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396345419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:21,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688400111] [2024-11-28 04:35:21,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:21,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:21,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:21,983 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:21,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:35:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:22,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:35:22,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:22,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:22,375 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:22,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688400111] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:22,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:22,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:35:22,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157094639] [2024-11-28 04:35:22,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:22,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:35:22,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:22,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:35:22,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:35:22,376 INFO L87 Difference]: Start difference. First operand 1221 states and 1688 transitions. Second operand has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:35:23,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:23,759 INFO L93 Difference]: Finished difference Result 1818 states and 2421 transitions. [2024-11-28 04:35:23,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 04:35:23,760 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 99 [2024-11-28 04:35:23,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:23,766 INFO L225 Difference]: With dead ends: 1818 [2024-11-28 04:35:23,766 INFO L226 Difference]: Without dead ends: 1816 [2024-11-28 04:35:23,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=572, Invalid=1498, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:35:23,768 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 1645 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:23,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 728 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:35:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2024-11-28 04:35:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1419. [2024-11-28 04:35:23,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1241 states have (on average 1.3803384367445608) internal successors, (1713), 1286 states have internal predecessors, (1713), 134 states have call successors, (134), 6 states have call predecessors, (134), 6 states have return successors, (134), 126 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-28 04:35:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1981 transitions. [2024-11-28 04:35:23,917 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1981 transitions. Word has length 99 [2024-11-28 04:35:23,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:23,918 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 1981 transitions. [2024-11-28 04:35:23,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:35:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1981 transitions. [2024-11-28 04:35:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:35:23,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:23,918 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:23,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:35:24,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:35:24,119 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:24,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2080656965, now seen corresponding path program 1 times [2024-11-28 04:35:24,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:24,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277801198] [2024-11-28 04:35:24,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:24,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:24,220 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:24,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:24,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277801198] [2024-11-28 04:35:24,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277801198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:24,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292347486] [2024-11-28 04:35:24,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:24,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:24,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:24,223 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:24,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:35:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:24,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:35:24,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:24,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292347486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:24,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:24,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 04:35:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877441541] [2024-11-28 04:35:24,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:24,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:24,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:24,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:35:24,630 INFO L87 Difference]: Start difference. First operand 1419 states and 1981 transitions. Second operand has 8 states, 7 states have (on average 26.0) internal successors, (182), 8 states have internal predecessors, (182), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:35:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:25,357 INFO L93 Difference]: Finished difference Result 1914 states and 2692 transitions. [2024-11-28 04:35:25,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:25,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.0) internal successors, (182), 8 states have internal predecessors, (182), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 100 [2024-11-28 04:35:25,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:25,364 INFO L225 Difference]: With dead ends: 1914 [2024-11-28 04:35:25,364 INFO L226 Difference]: Without dead ends: 1912 [2024-11-28 04:35:25,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 195 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 04:35:25,365 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 265 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:25,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 319 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:35:25,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-11-28 04:35:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1635. [2024-11-28 04:35:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1436 states have (on average 1.3823119777158774) internal successors, (1985), 1481 states have internal predecessors, (1985), 155 states have call successors, (155), 6 states have call predecessors, (155), 6 states have return successors, (155), 147 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-28 04:35:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2295 transitions. [2024-11-28 04:35:25,509 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2295 transitions. Word has length 100 [2024-11-28 04:35:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:25,509 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 2295 transitions. [2024-11-28 04:35:25,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.0) internal successors, (182), 8 states have internal predecessors, (182), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:35:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2295 transitions. [2024-11-28 04:35:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:35:25,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:25,510 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:25,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:35:25,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-28 04:35:25,711 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:25,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:25,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1235620527, now seen corresponding path program 1 times [2024-11-28 04:35:25,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:25,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683305564] [2024-11-28 04:35:25,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:25,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:25,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:25,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683305564] [2024-11-28 04:35:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683305564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:25,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107172727] [2024-11-28 04:35:25,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:25,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:25,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:25,809 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:25,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:35:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:25,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:35:25,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:26,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:26,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107172727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:26,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 04:35:26,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234434318] [2024-11-28 04:35:26,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:26,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:26,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:35:26,274 INFO L87 Difference]: Start difference. First operand 1635 states and 2295 transitions. Second operand has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 8 states have internal predecessors, (188), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:35:27,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:27,024 INFO L93 Difference]: Finished difference Result 2227 states and 3163 transitions. [2024-11-28 04:35:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:27,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 8 states have internal predecessors, (188), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 102 [2024-11-28 04:35:27,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:27,040 INFO L225 Difference]: With dead ends: 2227 [2024-11-28 04:35:27,041 INFO L226 Difference]: Without dead ends: 2225 [2024-11-28 04:35:27,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 199 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 04:35:27,043 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 277 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:27,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 367 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:35:27,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2024-11-28 04:35:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 1861. [2024-11-28 04:35:27,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1641 states have (on average 1.3833028641072518) internal successors, (2270), 1686 states have internal predecessors, (2270), 176 states have call successors, (176), 6 states have call predecessors, (176), 6 states have return successors, (176), 168 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:35:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2622 transitions. [2024-11-28 04:35:27,222 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2622 transitions. Word has length 102 [2024-11-28 04:35:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:27,223 INFO L471 AbstractCegarLoop]: Abstraction has 1861 states and 2622 transitions. [2024-11-28 04:35:27,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 8 states have internal predecessors, (188), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:35:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2622 transitions. [2024-11-28 04:35:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:35:27,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:27,223 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:35:27,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:27,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-28 04:35:27,424 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:27,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:27,424 INFO L85 PathProgramCache]: Analyzing trace with hash -988825377, now seen corresponding path program 1 times [2024-11-28 04:35:27,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:27,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826361094] [2024-11-28 04:35:27,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:27,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:27,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647285196] [2024-11-28 04:35:27,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:27,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:27,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:27,442 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:27,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:35:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:27,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:35:27,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 04:35:28,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:28,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:28,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826361094] [2024-11-28 04:35:28,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:28,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647285196] [2024-11-28 04:35:28,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647285196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:28,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:28,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:35:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222171625] [2024-11-28 04:35:28,348 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:28,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:35:28,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:28,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:35:28,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:35:28,349 INFO L87 Difference]: Start difference. First operand 1861 states and 2622 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:35:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:29,790 INFO L93 Difference]: Finished difference Result 1923 states and 2704 transitions. [2024-11-28 04:35:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:35:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 108 [2024-11-28 04:35:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:29,796 INFO L225 Difference]: With dead ends: 1923 [2024-11-28 04:35:29,796 INFO L226 Difference]: Without dead ends: 1919 [2024-11-28 04:35:29,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:35:29,798 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 412 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:29,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 576 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:35:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2024-11-28 04:35:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1881. [2024-11-28 04:35:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1659 states have (on average 1.379746835443038) internal successors, (2289), 1704 states have internal predecessors, (2289), 178 states have call successors, (178), 6 states have call predecessors, (178), 6 states have return successors, (178), 170 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-28 04:35:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2645 transitions. [2024-11-28 04:35:29,956 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2645 transitions. Word has length 108 [2024-11-28 04:35:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:29,957 INFO L471 AbstractCegarLoop]: Abstraction has 1881 states and 2645 transitions. [2024-11-28 04:35:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:35:29,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2645 transitions. [2024-11-28 04:35:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:35:29,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:29,958 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:35:29,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:35:30,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 04:35:30,162 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:30,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:30,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1140984957, now seen corresponding path program 2 times [2024-11-28 04:35:30,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:30,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686610744] [2024-11-28 04:35:30,163 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:30,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:30,186 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:30,186 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:30,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575327052] [2024-11-28 04:35:30,189 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:30,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:30,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:30,191 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:30,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:35:30,250 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:30,250 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:30,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:35:30,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:30,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:33,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:33,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686610744] [2024-11-28 04:35:33,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:33,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575327052] [2024-11-28 04:35:33,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575327052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:33,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:33,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:35:33,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494662282] [2024-11-28 04:35:33,376 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:33,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:35:33,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:33,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:35:33,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=33, Unknown=1, NotChecked=0, Total=56 [2024-11-28 04:35:33,377 INFO L87 Difference]: Start difference. First operand 1881 states and 2645 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 04:35:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:34,329 INFO L93 Difference]: Finished difference Result 1955 states and 2743 transitions. [2024-11-28 04:35:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:35:34,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 108 [2024-11-28 04:35:34,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:34,335 INFO L225 Difference]: With dead ends: 1955 [2024-11-28 04:35:34,335 INFO L226 Difference]: Without dead ends: 1951 [2024-11-28 04:35:34,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=63, Invalid=92, Unknown=1, NotChecked=0, Total=156 [2024-11-28 04:35:34,337 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 158 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:34,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 322 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:35:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2024-11-28 04:35:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1859. [2024-11-28 04:35:34,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1643 states have (on average 1.328058429701765) internal successors, (2182), 1684 states have internal predecessors, (2182), 176 states have call successors, (176), 6 states have call predecessors, (176), 6 states have return successors, (176), 168 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:35:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2534 transitions. [2024-11-28 04:35:34,464 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2534 transitions. Word has length 108 [2024-11-28 04:35:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:34,464 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2534 transitions. [2024-11-28 04:35:34,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 04:35:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2534 transitions. [2024-11-28 04:35:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:35:34,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:34,466 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:34,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:34,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:34,666 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:34,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:34,667 INFO L85 PathProgramCache]: Analyzing trace with hash -588815562, now seen corresponding path program 1 times [2024-11-28 04:35:34,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:34,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332289134] [2024-11-28 04:35:34,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:34,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:34,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859319661] [2024-11-28 04:35:34,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:34,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:34,687 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:34,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:35:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:34,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:35:34,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 04:35:35,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:35,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:35,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332289134] [2024-11-28 04:35:35,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:35,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859319661] [2024-11-28 04:35:35,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859319661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:35,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:35,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:35:35,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237794067] [2024-11-28 04:35:35,703 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:35,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:35:35,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:35,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:35:35,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:35:35,704 INFO L87 Difference]: Start difference. First operand 1859 states and 2534 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:35:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:36,738 INFO L93 Difference]: Finished difference Result 1888 states and 2562 transitions. [2024-11-28 04:35:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:35:36,739 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 109 [2024-11-28 04:35:36,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:36,744 INFO L225 Difference]: With dead ends: 1888 [2024-11-28 04:35:36,744 INFO L226 Difference]: Without dead ends: 1886 [2024-11-28 04:35:36,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:35:36,745 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 425 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:36,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 307 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:35:36,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2024-11-28 04:35:36,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1859. [2024-11-28 04:35:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1643 states have (on average 1.3268411442483263) internal successors, (2180), 1684 states have internal predecessors, (2180), 176 states have call successors, (176), 6 states have call predecessors, (176), 6 states have return successors, (176), 168 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:35:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2532 transitions. [2024-11-28 04:35:36,863 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2532 transitions. Word has length 109 [2024-11-28 04:35:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:36,864 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2532 transitions. [2024-11-28 04:35:36,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:35:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2532 transitions. [2024-11-28 04:35:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:35:36,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:36,865 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:36,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:37,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:37,065 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:37,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1010795246, now seen corresponding path program 2 times [2024-11-28 04:35:37,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:37,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498154914] [2024-11-28 04:35:37,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:37,087 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:37,088 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:37,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072960123] [2024-11-28 04:35:37,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:37,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:37,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:37,093 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:37,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:35:37,155 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:37,155 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:37,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:35:37,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:37,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:38,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:38,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498154914] [2024-11-28 04:35:38,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:38,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072960123] [2024-11-28 04:35:38,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072960123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:38,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:35:38,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:35:38,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947094290] [2024-11-28 04:35:38,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:38,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:35:38,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:38,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:35:38,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:38,252 INFO L87 Difference]: Start difference. First operand 1859 states and 2532 transitions. Second operand has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 10 states have internal predecessors, (142), 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 04:35:41,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:41,513 INFO L93 Difference]: Finished difference Result 1938 states and 2613 transitions. [2024-11-28 04:35:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:35:41,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 10 states have internal predecessors, (142), 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 109 [2024-11-28 04:35:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:41,518 INFO L225 Difference]: With dead ends: 1938 [2024-11-28 04:35:41,518 INFO L226 Difference]: Without dead ends: 1935 [2024-11-28 04:35:41,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:35:41,519 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 470 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:41,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 548 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:35:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2024-11-28 04:35:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1871. [2024-11-28 04:35:41,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1654 states have (on average 1.3216444981862152) internal successors, (2186), 1695 states have internal predecessors, (2186), 177 states have call successors, (177), 6 states have call predecessors, (177), 6 states have return successors, (177), 169 states have call predecessors, (177), 177 states have call successors, (177) [2024-11-28 04:35:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2540 transitions. [2024-11-28 04:35:41,652 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2540 transitions. Word has length 109 [2024-11-28 04:35:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:41,653 INFO L471 AbstractCegarLoop]: Abstraction has 1871 states and 2540 transitions. [2024-11-28 04:35:41,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 10 states have internal predecessors, (142), 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 04:35:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2540 transitions. [2024-11-28 04:35:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:35:41,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:41,654 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:35:41,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:35:41,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:41,855 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:41,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:41,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2112660531, now seen corresponding path program 1 times [2024-11-28 04:35:41,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:41,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180327602] [2024-11-28 04:35:41,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:41,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:35:41,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:41,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180327602] [2024-11-28 04:35:41,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180327602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:41,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:41,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:35:41,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110747189] [2024-11-28 04:35:41,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:41,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:35:41,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:41,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:35:41,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:35:41,966 INFO L87 Difference]: Start difference. First operand 1871 states and 2540 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:35:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:43,195 INFO L93 Difference]: Finished difference Result 1915 states and 2583 transitions. [2024-11-28 04:35:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:43,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 111 [2024-11-28 04:35:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:43,200 INFO L225 Difference]: With dead ends: 1915 [2024-11-28 04:35:43,200 INFO L226 Difference]: Without dead ends: 1897 [2024-11-28 04:35:43,201 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 04:35:43,201 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 234 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:43,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 239 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:35:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2024-11-28 04:35:43,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1859. [2024-11-28 04:35:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1645 states have (on average 1.3179331306990882) internal successors, (2168), 1684 states have internal predecessors, (2168), 174 states have call successors, (174), 6 states have call predecessors, (174), 6 states have return successors, (174), 168 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 04:35:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2516 transitions. [2024-11-28 04:35:43,391 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2516 transitions. Word has length 111 [2024-11-28 04:35:43,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:43,392 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2516 transitions. [2024-11-28 04:35:43,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:35:43,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2516 transitions. [2024-11-28 04:35:43,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:35:43,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:43,393 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:35:43,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 04:35:43,394 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:43,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:43,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1083929752, now seen corresponding path program 1 times [2024-11-28 04:35:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:43,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324491162] [2024-11-28 04:35:43,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:43,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526569330] [2024-11-28 04:35:43,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:43,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:43,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:43,419 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:43,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:35:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:43,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:35:43,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:43,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:44,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:44,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324491162] [2024-11-28 04:35:44,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:44,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526569330] [2024-11-28 04:35:44,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526569330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:44,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:44,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:35:44,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194691886] [2024-11-28 04:35:44,214 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:44,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:35:44,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:44,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:35:44,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:35:44,216 INFO L87 Difference]: Start difference. First operand 1859 states and 2516 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 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 04:35:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:44,871 INFO L93 Difference]: Finished difference Result 1879 states and 2536 transitions. [2024-11-28 04:35:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:35:44,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 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 111 [2024-11-28 04:35:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:44,876 INFO L225 Difference]: With dead ends: 1879 [2024-11-28 04:35:44,876 INFO L226 Difference]: Without dead ends: 1877 [2024-11-28 04:35:44,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 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 04:35:44,877 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 88 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:44,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 247 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:35:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2024-11-28 04:35:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1859. [2024-11-28 04:35:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1645 states have (on average 1.3167173252279636) internal successors, (2166), 1684 states have internal predecessors, (2166), 174 states have call successors, (174), 6 states have call predecessors, (174), 6 states have return successors, (174), 168 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 04:35:45,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2514 transitions. [2024-11-28 04:35:45,082 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2514 transitions. Word has length 111 [2024-11-28 04:35:45,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:45,082 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2514 transitions. [2024-11-28 04:35:45,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 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 04:35:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2514 transitions. [2024-11-28 04:35:45,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:35:45,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:45,084 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:35:45,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:35:45,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:45,285 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:45,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash -711620748, now seen corresponding path program 2 times [2024-11-28 04:35:45,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:45,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636609257] [2024-11-28 04:35:45,285 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:45,311 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:45,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:45,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802496592] [2024-11-28 04:35:45,312 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:45,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:45,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:45,318 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:45,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:35:45,379 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:45,379 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:45,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:35:45,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:45,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:46,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:46,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636609257] [2024-11-28 04:35:46,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:46,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802496592] [2024-11-28 04:35:46,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802496592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:46,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:35:46,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-28 04:35:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129052983] [2024-11-28 04:35:46,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:46,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:35:46,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:46,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:35:46,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:35:46,506 INFO L87 Difference]: Start difference. First operand 1859 states and 2514 transitions. Second operand has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 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 04:35:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:50,649 INFO L93 Difference]: Finished difference Result 1880 states and 2536 transitions. [2024-11-28 04:35:50,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:50,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 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 111 [2024-11-28 04:35:50,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:50,655 INFO L225 Difference]: With dead ends: 1880 [2024-11-28 04:35:50,655 INFO L226 Difference]: Without dead ends: 1878 [2024-11-28 04:35:50,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:35:50,656 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 245 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:50,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 484 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:35:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-28 04:35:50,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1861. [2024-11-28 04:35:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1647 states have (on average 1.3126897389192471) internal successors, (2162), 1686 states have internal predecessors, (2162), 174 states have call successors, (174), 6 states have call predecessors, (174), 6 states have return successors, (174), 168 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 04:35:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2510 transitions. [2024-11-28 04:35:50,877 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2510 transitions. Word has length 111 [2024-11-28 04:35:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:50,878 INFO L471 AbstractCegarLoop]: Abstraction has 1861 states and 2510 transitions. [2024-11-28 04:35:50,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 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 04:35:50,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2510 transitions. [2024-11-28 04:35:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:35:50,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:50,880 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:50,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:35:51,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 04:35:51,087 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:51,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:51,087 INFO L85 PathProgramCache]: Analyzing trace with hash -757915997, now seen corresponding path program 1 times [2024-11-28 04:35:51,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:51,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751602803] [2024-11-28 04:35:51,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:51,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:51,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073051338] [2024-11-28 04:35:51,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:51,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:51,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:51,115 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:51,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:35:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:51,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:35:51,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:51,893 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:51,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-28 04:35:52,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:52,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751602803] [2024-11-28 04:35:52,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:52,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073051338] [2024-11-28 04:35:52,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073051338] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:52,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:52,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:35:52,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202703345] [2024-11-28 04:35:52,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:52,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:35:52,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:52,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:35:52,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:35:52,189 INFO L87 Difference]: Start difference. First operand 1861 states and 2510 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 04:35:52,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:52,899 INFO L93 Difference]: Finished difference Result 1861 states and 2510 transitions. [2024-11-28 04:35:52,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:52,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 112 [2024-11-28 04:35:52,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:52,906 INFO L225 Difference]: With dead ends: 1861 [2024-11-28 04:35:52,906 INFO L226 Difference]: Without dead ends: 1860 [2024-11-28 04:35:52,907 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 04:35:52,908 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 93 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 133 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 04:35:52,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 133 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:35:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2024-11-28 04:35:53,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1860. [2024-11-28 04:35:53,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1647 states have (on average 1.2932604735883424) internal successors, (2130), 1685 states have internal predecessors, (2130), 174 states have call successors, (174), 6 states have call predecessors, (174), 6 states have return successors, (174), 168 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 04:35:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2478 transitions. [2024-11-28 04:35:53,147 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2478 transitions. Word has length 112 [2024-11-28 04:35:53,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:53,147 INFO L471 AbstractCegarLoop]: Abstraction has 1860 states and 2478 transitions. [2024-11-28 04:35:53,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 04:35:53,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2478 transitions. [2024-11-28 04:35:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:35:53,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:53,149 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:53,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 04:35:53,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:35:53,353 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:53,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2020559366, now seen corresponding path program 1 times [2024-11-28 04:35:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:53,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898027194] [2024-11-28 04:35:53,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:53,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969988571] [2024-11-28 04:35:53,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:53,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:53,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:53,370 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:53,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:35:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:53,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:35:53,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:35:54,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 04:35:54,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:54,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898027194] [2024-11-28 04:35:54,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:54,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969988571] [2024-11-28 04:35:54,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969988571] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:54,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:54,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:35:54,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134288782] [2024-11-28 04:35:54,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:54,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:35:54,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:54,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:35:54,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:35:54,571 INFO L87 Difference]: Start difference. First operand 1860 states and 2478 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 04:35:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:56,043 INFO L93 Difference]: Finished difference Result 1860 states and 2478 transitions. [2024-11-28 04:35:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:56,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 113 [2024-11-28 04:35:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:56,049 INFO L225 Difference]: With dead ends: 1860 [2024-11-28 04:35:56,049 INFO L226 Difference]: Without dead ends: 1857 [2024-11-28 04:35:56,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:35:56,050 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 93 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:56,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 133 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:35:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2024-11-28 04:35:56,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1857. [2024-11-28 04:35:56,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1647 states have (on average 1.2616879174256224) internal successors, (2078), 1682 states have internal predecessors, (2078), 174 states have call successors, (174), 6 states have call predecessors, (174), 6 states have return successors, (174), 168 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 04:35:56,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2426 transitions. [2024-11-28 04:35:56,295 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2426 transitions. Word has length 113 [2024-11-28 04:35:56,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:56,295 INFO L471 AbstractCegarLoop]: Abstraction has 1857 states and 2426 transitions. [2024-11-28 04:35:56,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 04:35:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2426 transitions. [2024-11-28 04:35:56,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:35:56,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:56,297 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:56,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:56,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:56,499 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:56,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:56,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2026307642, now seen corresponding path program 2 times [2024-11-28 04:35:56,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:56,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634221682] [2024-11-28 04:35:56,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:56,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:56,527 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:56,528 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:56,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713624963] [2024-11-28 04:35:56,528 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:56,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:56,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:56,531 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:56,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:35:56,594 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:56,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:56,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:35:56,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-28 04:35:57,264 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:57,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:57,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634221682] [2024-11-28 04:35:57,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:57,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713624963] [2024-11-28 04:35:57,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713624963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:57,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:57,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:35:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962245991] [2024-11-28 04:35:57,382 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:57,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:35:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:57,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:35:57,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:35:57,384 INFO L87 Difference]: Start difference. First operand 1857 states and 2426 transitions. Second operand has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:35:58,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:58,106 INFO L93 Difference]: Finished difference Result 2265 states and 2960 transitions. [2024-11-28 04:35:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:35:58,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 119 [2024-11-28 04:35:58,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:58,112 INFO L225 Difference]: With dead ends: 2265 [2024-11-28 04:35:58,112 INFO L226 Difference]: Without dead ends: 2263 [2024-11-28 04:35:58,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:58,114 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 370 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:58,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 423 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:35:58,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2024-11-28 04:35:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1930. [2024-11-28 04:35:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1713 states have (on average 1.2650321074138937) internal successors, (2167), 1748 states have internal predecessors, (2167), 181 states have call successors, (181), 6 states have call predecessors, (181), 6 states have return successors, (181), 175 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-28 04:35:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2529 transitions. [2024-11-28 04:35:58,390 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2529 transitions. Word has length 119 [2024-11-28 04:35:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:58,391 INFO L471 AbstractCegarLoop]: Abstraction has 1930 states and 2529 transitions. [2024-11-28 04:35:58,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:35:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2529 transitions. [2024-11-28 04:35:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:35:58,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:58,392 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:35:58,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 04:35:58,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:58,593 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:35:58,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:58,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1591158156, now seen corresponding path program 1 times [2024-11-28 04:35:58,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:58,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065431006] [2024-11-28 04:35:58,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:58,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:58,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269410586] [2024-11-28 04:35:58,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:58,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:58,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:58,621 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:58,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:35:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:58,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:35:58,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:35:59,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:59,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:59,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065431006] [2024-11-28 04:35:59,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:59,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269410586] [2024-11-28 04:35:59,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269410586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:59,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:59,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:35:59,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548417423] [2024-11-28 04:35:59,757 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:59,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:35:59,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:59,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:35:59,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:35:59,758 INFO L87 Difference]: Start difference. First operand 1930 states and 2529 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:36:00,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:00,750 INFO L93 Difference]: Finished difference Result 2045 states and 2678 transitions. [2024-11-28 04:36:00,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:36:00,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2024-11-28 04:36:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:00,757 INFO L225 Difference]: With dead ends: 2045 [2024-11-28 04:36:00,757 INFO L226 Difference]: Without dead ends: 2044 [2024-11-28 04:36:00,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:36:00,758 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 171 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:00,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 465 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:36:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2024-11-28 04:36:00,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1930. [2024-11-28 04:36:00,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1713 states have (on average 1.2644483362521892) internal successors, (2166), 1748 states have internal predecessors, (2166), 181 states have call successors, (181), 6 states have call predecessors, (181), 6 states have return successors, (181), 175 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-28 04:36:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2528 transitions. [2024-11-28 04:36:00,977 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2528 transitions. Word has length 122 [2024-11-28 04:36:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:00,978 INFO L471 AbstractCegarLoop]: Abstraction has 1930 states and 2528 transitions. [2024-11-28 04:36:00,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:36:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2528 transitions. [2024-11-28 04:36:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:36:00,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:00,979 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:00,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:01,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:01,180 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:01,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2081262652, now seen corresponding path program 1 times [2024-11-28 04:36:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722122612] [2024-11-28 04:36:01,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:36:01,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010218280] [2024-11-28 04:36:01,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:01,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:01,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:01,205 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:01,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:36:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:01,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:36:01,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 15 proven. 62 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 04:36:02,239 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:02,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:02,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722122612] [2024-11-28 04:36:02,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:02,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010218280] [2024-11-28 04:36:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010218280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:02,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:36:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940170726] [2024-11-28 04:36:02,457 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:02,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:36:02,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:02,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:36:02,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:36:02,458 INFO L87 Difference]: Start difference. First operand 1930 states and 2528 transitions. Second operand has 11 states, 10 states have (on average 8.7) internal successors, (87), 11 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:36:03,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:03,943 INFO L93 Difference]: Finished difference Result 2047 states and 2681 transitions. [2024-11-28 04:36:03,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:36:03,944 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 11 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 123 [2024-11-28 04:36:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:03,950 INFO L225 Difference]: With dead ends: 2047 [2024-11-28 04:36:03,950 INFO L226 Difference]: Without dead ends: 2014 [2024-11-28 04:36:03,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:36:03,951 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 83 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:03,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 479 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:36:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-11-28 04:36:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1906. [2024-11-28 04:36:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1906 states, 1692 states have (on average 1.2653664302600474) internal successors, (2141), 1726 states have internal predecessors, (2141), 178 states have call successors, (178), 6 states have call predecessors, (178), 6 states have return successors, (178), 173 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-28 04:36:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2497 transitions. [2024-11-28 04:36:04,190 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2497 transitions. Word has length 123 [2024-11-28 04:36:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:04,191 INFO L471 AbstractCegarLoop]: Abstraction has 1906 states and 2497 transitions. [2024-11-28 04:36:04,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 11 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:36:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2497 transitions. [2024-11-28 04:36:04,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:36:04,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:04,192 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:04,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 04:36:04,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:04,397 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:04,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:04,397 INFO L85 PathProgramCache]: Analyzing trace with hash -773172153, now seen corresponding path program 2 times [2024-11-28 04:36:04,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:04,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664995443] [2024-11-28 04:36:04,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:36:04,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:04,420 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:36:04,420 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:04,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718852316] [2024-11-28 04:36:04,421 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:36:04,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:04,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:04,423 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:04,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:36:04,489 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:36:04,489 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:04,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:36:04,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:36:05,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:08,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:08,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664995443] [2024-11-28 04:36:08,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:08,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718852316] [2024-11-28 04:36:08,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718852316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:08,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:08,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:36:08,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724975899] [2024-11-28 04:36:08,295 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:08,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:36:08,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:08,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:36:08,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2024-11-28 04:36:08,295 INFO L87 Difference]: Start difference. First operand 1906 states and 2497 transitions. Second operand has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 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 04:36:08,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:08,955 INFO L93 Difference]: Finished difference Result 2303 states and 3026 transitions. [2024-11-28 04:36:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:36:08,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 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 130 [2024-11-28 04:36:08,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:08,960 INFO L225 Difference]: With dead ends: 2303 [2024-11-28 04:36:08,960 INFO L226 Difference]: Without dead ends: 2301 [2024-11-28 04:36:08,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=42, Invalid=89, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:36:08,962 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 299 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:08,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 453 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:36:08,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2024-11-28 04:36:09,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 1974. [2024-11-28 04:36:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1754 states have (on average 1.2679589509692133) internal successors, (2224), 1788 states have internal predecessors, (2224), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 179 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 04:36:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2592 transitions. [2024-11-28 04:36:09,229 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2592 transitions. Word has length 130 [2024-11-28 04:36:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:09,229 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 2592 transitions. [2024-11-28 04:36:09,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 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 04:36:09,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2592 transitions. [2024-11-28 04:36:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:36:09,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:09,230 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:09,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 04:36:09,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:09,434 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:09,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:09,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1314761576, now seen corresponding path program 1 times [2024-11-28 04:36:09,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:09,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616380463] [2024-11-28 04:36:09,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:09,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:36:09,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981059901] [2024-11-28 04:36:09,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:09,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:09,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:09,456 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:09,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:36:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:09,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:36:09,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-28 04:36:10,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:14,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616380463] [2024-11-28 04:36:14,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981059901] [2024-11-28 04:36:14,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981059901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:14,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:14,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:36:14,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813822559] [2024-11-28 04:36:14,680 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:14,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:36:14,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:14,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:36:14,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=93, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:36:14,681 INFO L87 Difference]: Start difference. First operand 1974 states and 2592 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:36:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:15,432 INFO L93 Difference]: Finished difference Result 2076 states and 2726 transitions. [2024-11-28 04:36:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:15,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 133 [2024-11-28 04:36:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:15,437 INFO L225 Difference]: With dead ends: 2076 [2024-11-28 04:36:15,437 INFO L226 Difference]: Without dead ends: 2075 [2024-11-28 04:36:15,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=47, Invalid=108, Unknown=1, NotChecked=0, Total=156 [2024-11-28 04:36:15,438 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 144 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:15,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 386 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:15,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2024-11-28 04:36:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1974. [2024-11-28 04:36:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1754 states have (on average 1.2673888255416192) internal successors, (2223), 1788 states have internal predecessors, (2223), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 179 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 04:36:15,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2591 transitions. [2024-11-28 04:36:15,617 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2591 transitions. Word has length 133 [2024-11-28 04:36:15,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:15,618 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 2591 transitions. [2024-11-28 04:36:15,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:36:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2591 transitions. [2024-11-28 04:36:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:36:15,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:15,619 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:15,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:15,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-28 04:36:15,819 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:15,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:15,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2102903107, now seen corresponding path program 1 times [2024-11-28 04:36:15,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:15,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363685948] [2024-11-28 04:36:15,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:15,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:36:15,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917279727] [2024-11-28 04:36:15,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:15,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:15,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:15,838 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:15,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:36:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:15,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 04:36:15,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 21 proven. 73 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:36:16,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:17,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:17,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363685948] [2024-11-28 04:36:17,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:17,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917279727] [2024-11-28 04:36:17,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917279727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:17,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:17,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:36:17,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490177603] [2024-11-28 04:36:17,018 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:17,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:36:17,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:17,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:36:17,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:36:17,019 INFO L87 Difference]: Start difference. First operand 1974 states and 2591 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:36:18,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:18,580 INFO L93 Difference]: Finished difference Result 2083 states and 2735 transitions. [2024-11-28 04:36:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:36:18,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 134 [2024-11-28 04:36:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:18,583 INFO L225 Difference]: With dead ends: 2083 [2024-11-28 04:36:18,583 INFO L226 Difference]: Without dead ends: 2079 [2024-11-28 04:36:18,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:36:18,584 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 145 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:18,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 577 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:36:18,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2024-11-28 04:36:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1958. [2024-11-28 04:36:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1740 states have (on average 1.2666666666666666) internal successors, (2204), 1773 states have internal predecessors, (2204), 182 states have call successors, (182), 6 states have call predecessors, (182), 6 states have return successors, (182), 178 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-28 04:36:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2568 transitions. [2024-11-28 04:36:18,758 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2568 transitions. Word has length 134 [2024-11-28 04:36:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:18,758 INFO L471 AbstractCegarLoop]: Abstraction has 1958 states and 2568 transitions. [2024-11-28 04:36:18,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:36:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2568 transitions. [2024-11-28 04:36:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:36:18,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:18,760 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:18,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:18,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-28 04:36:18,961 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:18,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:18,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1922118161, now seen corresponding path program 1 times [2024-11-28 04:36:18,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:18,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365651482] [2024-11-28 04:36:18,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:19,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:19,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365651482] [2024-11-28 04:36:19,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365651482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:19,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946519317] [2024-11-28 04:36:19,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:19,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:19,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:19,106 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:19,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:36:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:19,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:36:19,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:19,646 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:19,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946519317] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:36:19,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:36:19,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:36:19,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383259668] [2024-11-28 04:36:19,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:19,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:36:19,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:19,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:36:19,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:36:19,889 INFO L87 Difference]: Start difference. First operand 1958 states and 2568 transitions. Second operand has 14 states, 13 states have (on average 20.846153846153847) internal successors, (271), 14 states have internal predecessors, (271), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) [2024-11-28 04:36:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:21,280 INFO L93 Difference]: Finished difference Result 2473 states and 3170 transitions. [2024-11-28 04:36:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:36:21,281 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.846153846153847) internal successors, (271), 14 states have internal predecessors, (271), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) Word has length 144 [2024-11-28 04:36:21,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:21,284 INFO L225 Difference]: With dead ends: 2473 [2024-11-28 04:36:21,284 INFO L226 Difference]: Without dead ends: 2471 [2024-11-28 04:36:21,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=547, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:36:21,285 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 654 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:21,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 776 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:36:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2024-11-28 04:36:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2024. [2024-11-28 04:36:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 1800 states have (on average 1.2616666666666667) internal successors, (2271), 1833 states have internal predecessors, (2271), 188 states have call successors, (188), 6 states have call predecessors, (188), 6 states have return successors, (188), 184 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:36:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2647 transitions. [2024-11-28 04:36:21,470 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2647 transitions. Word has length 144 [2024-11-28 04:36:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:21,471 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 2647 transitions. [2024-11-28 04:36:21,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.846153846153847) internal successors, (271), 14 states have internal predecessors, (271), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) [2024-11-28 04:36:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2647 transitions. [2024-11-28 04:36:21,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:36:21,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:21,472 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:21,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:21,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 04:36:21,673 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:21,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash 306258885, now seen corresponding path program 1 times [2024-11-28 04:36:21,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:21,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230687525] [2024-11-28 04:36:21,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:21,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230687525] [2024-11-28 04:36:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230687525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888616306] [2024-11-28 04:36:21,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:21,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:21,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:21,819 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:21,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:36:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:21,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:36:21,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:22,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:22,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888616306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:36:22,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:36:22,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:36:22,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682313687] [2024-11-28 04:36:22,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:22,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:36:22,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:22,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:36:22,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:36:22,642 INFO L87 Difference]: Start difference. First operand 2024 states and 2647 transitions. Second operand has 11 states, 10 states have (on average 27.5) internal successors, (275), 11 states have internal predecessors, (275), 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 04:36:23,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:23,718 INFO L93 Difference]: Finished difference Result 2926 states and 3805 transitions. [2024-11-28 04:36:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:36:23,718 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 27.5) internal successors, (275), 11 states have internal predecessors, (275), 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 146 [2024-11-28 04:36:23,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:23,722 INFO L225 Difference]: With dead ends: 2926 [2024-11-28 04:36:23,722 INFO L226 Difference]: Without dead ends: 2924 [2024-11-28 04:36:23,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:36:23,723 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 427 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:23,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 501 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:36:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2024-11-28 04:36:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2314. [2024-11-28 04:36:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2066 states have (on average 1.2623426911907067) internal successors, (2608), 2099 states have internal predecessors, (2608), 212 states have call successors, (212), 6 states have call predecessors, (212), 6 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-28 04:36:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3032 transitions. [2024-11-28 04:36:23,979 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3032 transitions. Word has length 146 [2024-11-28 04:36:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:23,980 INFO L471 AbstractCegarLoop]: Abstraction has 2314 states and 3032 transitions. [2024-11-28 04:36:23,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 27.5) internal successors, (275), 11 states have internal predecessors, (275), 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 04:36:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3032 transitions. [2024-11-28 04:36:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:36:23,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:23,981 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:23,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-28 04:36:24,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 04:36:24,181 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:24,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1745255083, now seen corresponding path program 1 times [2024-11-28 04:36:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608280338] [2024-11-28 04:36:24,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:24,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:24,310 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:24,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608280338] [2024-11-28 04:36:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608280338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401034580] [2024-11-28 04:36:24,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:24,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:24,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:24,314 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:24,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 04:36:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:24,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:36:24,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:24,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:25,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401034580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:36:25,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:36:25,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:36:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183541768] [2024-11-28 04:36:25,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:25,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:36:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:25,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:36:25,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:36:25,041 INFO L87 Difference]: Start difference. First operand 2314 states and 3032 transitions. Second operand has 11 states, 10 states have (on average 28.1) internal successors, (281), 11 states have internal predecessors, (281), 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 04:36:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:26,140 INFO L93 Difference]: Finished difference Result 3330 states and 4372 transitions. [2024-11-28 04:36:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:36:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 28.1) internal successors, (281), 11 states have internal predecessors, (281), 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 148 [2024-11-28 04:36:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:26,146 INFO L225 Difference]: With dead ends: 3330 [2024-11-28 04:36:26,146 INFO L226 Difference]: Without dead ends: 3328 [2024-11-28 04:36:26,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:36:26,147 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 487 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:26,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 578 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:36:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2024-11-28 04:36:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 2683. [2024-11-28 04:36:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2405 states have (on average 1.2590436590436591) internal successors, (3028), 2438 states have internal predecessors, (3028), 242 states have call successors, (242), 6 states have call predecessors, (242), 6 states have return successors, (242), 238 states have call predecessors, (242), 242 states have call successors, (242) [2024-11-28 04:36:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 3512 transitions. [2024-11-28 04:36:26,525 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 3512 transitions. Word has length 148 [2024-11-28 04:36:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:26,525 INFO L471 AbstractCegarLoop]: Abstraction has 2683 states and 3512 transitions. [2024-11-28 04:36:26,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 28.1) internal successors, (281), 11 states have internal predecessors, (281), 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 04:36:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 3512 transitions. [2024-11-28 04:36:26,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:36:26,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:26,527 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:26,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:26,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 04:36:26,728 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:26,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1434376782, now seen corresponding path program 1 times [2024-11-28 04:36:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724988850] [2024-11-28 04:36:26,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:26,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:36:26,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:26,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724988850] [2024-11-28 04:36:26,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724988850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:26,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817117514] [2024-11-28 04:36:26,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:26,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:26,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:26,873 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:26,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 04:36:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:26,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:36:26,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 100 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-28 04:36:27,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817117514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:27,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:36:27,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 9 [2024-11-28 04:36:27,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636494051] [2024-11-28 04:36:27,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:27,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:36:27,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:27,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:36:27,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:36:27,383 INFO L87 Difference]: Start difference. First operand 2683 states and 3512 transitions. Second operand has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:36:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:29,637 INFO L93 Difference]: Finished difference Result 2865 states and 3727 transitions. [2024-11-28 04:36:29,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:36:29,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 155 [2024-11-28 04:36:29,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:29,641 INFO L225 Difference]: With dead ends: 2865 [2024-11-28 04:36:29,641 INFO L226 Difference]: Without dead ends: 2860 [2024-11-28 04:36:29,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:36:29,643 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 346 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:29,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 359 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:36:29,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2024-11-28 04:36:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 2355. [2024-11-28 04:36:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2107 states have (on average 1.2387280493592785) internal successors, (2610), 2140 states have internal predecessors, (2610), 212 states have call successors, (212), 6 states have call predecessors, (212), 6 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-28 04:36:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3034 transitions. [2024-11-28 04:36:29,865 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3034 transitions. Word has length 155 [2024-11-28 04:36:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:29,866 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 3034 transitions. [2024-11-28 04:36:29,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:36:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3034 transitions. [2024-11-28 04:36:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:36:29,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:29,867 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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 04:36:29,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-28 04:36:30,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:30,068 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:30,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:30,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1893458180, now seen corresponding path program 3 times [2024-11-28 04:36:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:30,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94531394] [2024-11-28 04:36:30,069 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:36:30,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:30,096 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:36:30,097 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:30,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458241349] [2024-11-28 04:36:30,098 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:36:30,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:30,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:30,105 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:30,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 04:36:30,227 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:36:30,227 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:30,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:36:30,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:30,868 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 18 proven. 84 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 04:36:30,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:33,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:33,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94531394] [2024-11-28 04:36:33,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:33,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458241349] [2024-11-28 04:36:33,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458241349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:33,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:33,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:36:33,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283687094] [2024-11-28 04:36:33,127 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:33,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:36:33,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:33,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:36:33,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:36:33,128 INFO L87 Difference]: Start difference. First operand 2355 states and 3034 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:36:34,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:34,868 INFO L93 Difference]: Finished difference Result 2490 states and 3183 transitions. [2024-11-28 04:36:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:36:34,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 154 [2024-11-28 04:36:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:34,872 INFO L225 Difference]: With dead ends: 2490 [2024-11-28 04:36:34,872 INFO L226 Difference]: Without dead ends: 2486 [2024-11-28 04:36:34,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:36:34,873 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 384 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:34,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 496 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:36:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2024-11-28 04:36:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2349. [2024-11-28 04:36:35,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2102 states have (on average 1.2392959086584205) internal successors, (2605), 2135 states have internal predecessors, (2605), 211 states have call successors, (211), 6 states have call predecessors, (211), 6 states have return successors, (211), 207 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 04:36:35,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3027 transitions. [2024-11-28 04:36:35,092 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3027 transitions. Word has length 154 [2024-11-28 04:36:35,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:35,092 INFO L471 AbstractCegarLoop]: Abstraction has 2349 states and 3027 transitions. [2024-11-28 04:36:35,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:36:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3027 transitions. [2024-11-28 04:36:35,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:36:35,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:35,094 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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 04:36:35,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-28 04:36:35,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:35,297 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:35,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2072159584, now seen corresponding path program 4 times [2024-11-28 04:36:35,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:35,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074223544] [2024-11-28 04:36:35,298 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:36:35,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:35,355 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:36:35,355 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:35,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653731138] [2024-11-28 04:36:35,356 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:36:35,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:35,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:35,361 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:35,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 04:36:35,509 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:36:35,519 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:35,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:36:35,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:36,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:36,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:36,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074223544] [2024-11-28 04:36:36,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:36,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653731138] [2024-11-28 04:36:36,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653731138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:36,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:36,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:36:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931287859] [2024-11-28 04:36:36,533 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:36,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:36:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:36,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:36:36,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:36,534 INFO L87 Difference]: Start difference. First operand 2349 states and 3027 transitions. Second operand has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 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 04:36:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:37,379 INFO L93 Difference]: Finished difference Result 2417 states and 3102 transitions. [2024-11-28 04:36:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:36:37,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 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 154 [2024-11-28 04:36:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:37,382 INFO L225 Difference]: With dead ends: 2417 [2024-11-28 04:36:37,383 INFO L226 Difference]: Without dead ends: 2416 [2024-11-28 04:36:37,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:37,383 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 97 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:37,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 457 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:36:37,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2024-11-28 04:36:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2349. [2024-11-28 04:36:37,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2102 states have (on average 1.2388201712654614) internal successors, (2604), 2135 states have internal predecessors, (2604), 211 states have call successors, (211), 6 states have call predecessors, (211), 6 states have return successors, (211), 207 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 04:36:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3026 transitions. [2024-11-28 04:36:37,702 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3026 transitions. Word has length 154 [2024-11-28 04:36:37,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:37,702 INFO L471 AbstractCegarLoop]: Abstraction has 2349 states and 3026 transitions. [2024-11-28 04:36:37,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 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 04:36:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3026 transitions. [2024-11-28 04:36:37,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:36:37,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:37,704 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:37,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:37,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:37,908 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:37,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 417630416, now seen corresponding path program 3 times [2024-11-28 04:36:37,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:37,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895449941] [2024-11-28 04:36:37,909 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:36:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:37,930 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:36:37,930 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:37,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418892168] [2024-11-28 04:36:37,931 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:36:37,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:37,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:37,935 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:37,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 04:36:38,084 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:36:38,084 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:38,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:36:38,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 87 proven. 24 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:39,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:39,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:39,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895449941] [2024-11-28 04:36:39,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:39,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418892168] [2024-11-28 04:36:39,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418892168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:39,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:39,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:36:39,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444518268] [2024-11-28 04:36:39,621 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:39,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:36:39,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:39,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:36:39,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:36:39,622 INFO L87 Difference]: Start difference. First operand 2349 states and 3026 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 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 04:36:40,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:40,941 INFO L93 Difference]: Finished difference Result 2419 states and 3101 transitions. [2024-11-28 04:36:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:40,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 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 156 [2024-11-28 04:36:40,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:40,947 INFO L225 Difference]: With dead ends: 2419 [2024-11-28 04:36:40,947 INFO L226 Difference]: Without dead ends: 2418 [2024-11-28 04:36:40,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:36:40,949 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 183 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:40,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 475 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:36:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2024-11-28 04:36:41,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2349. [2024-11-28 04:36:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2102 states have (on average 1.2378686964795433) internal successors, (2602), 2135 states have internal predecessors, (2602), 211 states have call successors, (211), 6 states have call predecessors, (211), 6 states have return successors, (211), 207 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 04:36:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3024 transitions. [2024-11-28 04:36:41,224 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3024 transitions. Word has length 156 [2024-11-28 04:36:41,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:41,224 INFO L471 AbstractCegarLoop]: Abstraction has 2349 states and 3024 transitions. [2024-11-28 04:36:41,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 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 04:36:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3024 transitions. [2024-11-28 04:36:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:36:41,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:41,225 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:41,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-28 04:36:41,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-28 04:36:41,426 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:41,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:41,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1377920084, now seen corresponding path program 4 times [2024-11-28 04:36:41,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:41,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987047380] [2024-11-28 04:36:41,426 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:36:41,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:41,444 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:36:41,444 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:41,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569599767] [2024-11-28 04:36:41,445 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:36:41,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:41,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:41,448 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:41,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 04:36:41,553 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:36:41,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:41,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:36:41,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:42,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:43,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:43,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987047380] [2024-11-28 04:36:43,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:43,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569599767] [2024-11-28 04:36:43,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569599767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:36:43,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:36:43,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-28 04:36:43,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018949068] [2024-11-28 04:36:43,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:43,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:36:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:43,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:36:43,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:36:43,320 INFO L87 Difference]: Start difference. First operand 2349 states and 3024 transitions. Second operand has 13 states, 12 states have (on average 17.166666666666668) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:36:45,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:36:51,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:51,312 INFO L93 Difference]: Finished difference Result 2685 states and 3445 transitions. [2024-11-28 04:36:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:36:51,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 17.166666666666668) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 156 [2024-11-28 04:36:51,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:51,316 INFO L225 Difference]: With dead ends: 2685 [2024-11-28 04:36:51,317 INFO L226 Difference]: Without dead ends: 2683 [2024-11-28 04:36:51,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:36:51,318 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 623 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:51,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 706 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 04:36:51,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2024-11-28 04:36:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2479. [2024-11-28 04:36:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 2223 states have (on average 1.236617183985605) internal successors, (2749), 2256 states have internal predecessors, (2749), 220 states have call successors, (220), 6 states have call predecessors, (220), 6 states have return successors, (220), 216 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-28 04:36:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3189 transitions. [2024-11-28 04:36:51,569 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3189 transitions. Word has length 156 [2024-11-28 04:36:51,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:51,569 INFO L471 AbstractCegarLoop]: Abstraction has 2479 states and 3189 transitions. [2024-11-28 04:36:51,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 17.166666666666668) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:36:51,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3189 transitions. [2024-11-28 04:36:51,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:36:51,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:51,570 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:51,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-28 04:36:51,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-28 04:36:51,771 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:51,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:51,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1452824286, now seen corresponding path program 5 times [2024-11-28 04:36:51,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:51,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662830183] [2024-11-28 04:36:51,772 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:36:51,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:51,787 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:36:51,788 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:51,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268021113] [2024-11-28 04:36:51,789 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:36:51,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:51,791 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:51,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 04:36:52,619 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:36:52,619 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:52,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:36:52,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:53,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:53,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:53,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662830183] [2024-11-28 04:36:53,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:53,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268021113] [2024-11-28 04:36:53,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268021113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:53,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:53,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:36:53,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602390822] [2024-11-28 04:36:53,472 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:53,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:53,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:53,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:53,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:36:53,473 INFO L87 Difference]: Start difference. First operand 2479 states and 3189 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 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 04:36:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:54,177 INFO L93 Difference]: Finished difference Result 2539 states and 3257 transitions. [2024-11-28 04:36:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:54,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 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 156 [2024-11-28 04:36:54,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:54,180 INFO L225 Difference]: With dead ends: 2539 [2024-11-28 04:36:54,180 INFO L226 Difference]: Without dead ends: 2538 [2024-11-28 04:36:54,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:36:54,181 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 96 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:54,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 322 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:36:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2024-11-28 04:36:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2479. [2024-11-28 04:36:54,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 2223 states have (on average 1.2361673414304992) internal successors, (2748), 2256 states have internal predecessors, (2748), 220 states have call successors, (220), 6 states have call predecessors, (220), 6 states have return successors, (220), 216 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-28 04:36:54,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3188 transitions. [2024-11-28 04:36:54,415 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3188 transitions. Word has length 156 [2024-11-28 04:36:54,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:54,415 INFO L471 AbstractCegarLoop]: Abstraction has 2479 states and 3188 transitions. [2024-11-28 04:36:54,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 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 04:36:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3188 transitions. [2024-11-28 04:36:54,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:36:54,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:54,416 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:54,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-28 04:36:54,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-28 04:36:54,617 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:54,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1519466882, now seen corresponding path program 6 times [2024-11-28 04:36:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491372607] [2024-11-28 04:36:54,617 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:36:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:54,637 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:36:54,637 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:36:54,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682108989] [2024-11-28 04:36:54,638 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:36:54,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:54,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:54,642 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:54,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 04:36:55,438 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:36:55,438 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:55,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:36:55,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:36:56,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:56,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:56,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491372607] [2024-11-28 04:36:56,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:56,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682108989] [2024-11-28 04:36:56,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682108989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:56,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:56,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:36:56,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957847301] [2024-11-28 04:36:56,417 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:56,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:36:56,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:56,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:36:56,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:56,418 INFO L87 Difference]: Start difference. First operand 2479 states and 3188 transitions. Second operand has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 7 states have internal predecessors, (107), 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 04:36:57,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:57,191 INFO L93 Difference]: Finished difference Result 2562 states and 3283 transitions. [2024-11-28 04:36:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:36:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 7 states have internal predecessors, (107), 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 156 [2024-11-28 04:36:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:57,194 INFO L225 Difference]: With dead ends: 2562 [2024-11-28 04:36:57,194 INFO L226 Difference]: Without dead ends: 2561 [2024-11-28 04:36:57,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:36:57,195 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 120 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:57,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 361 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-28 04:36:57,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2479. [2024-11-28 04:36:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 2223 states have (on average 1.2357174988753936) internal successors, (2747), 2256 states have internal predecessors, (2747), 220 states have call successors, (220), 6 states have call predecessors, (220), 6 states have return successors, (220), 216 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-28 04:36:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3187 transitions. [2024-11-28 04:36:57,428 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3187 transitions. Word has length 156 [2024-11-28 04:36:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:57,428 INFO L471 AbstractCegarLoop]: Abstraction has 2479 states and 3187 transitions. [2024-11-28 04:36:57,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 7 states have internal predecessors, (107), 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 04:36:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3187 transitions. [2024-11-28 04:36:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:36:57,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:57,429 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:57,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-28 04:36:57,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:57,630 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:36:57,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1074505054, now seen corresponding path program 1 times [2024-11-28 04:36:57,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:57,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127547759] [2024-11-28 04:36:57,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:57,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:36:57,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938104551] [2024-11-28 04:36:57,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:57,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:57,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:57,665 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:57,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 04:36:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:57,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:36:57,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 04:36:58,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:58,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127547759] [2024-11-28 04:36:58,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938104551] [2024-11-28 04:36:58,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938104551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:58,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:58,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:36:58,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374224822] [2024-11-28 04:36:58,885 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:58,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:36:58,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:58,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:36:58,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:36:58,886 INFO L87 Difference]: Start difference. First operand 2479 states and 3187 transitions. Second operand has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:36:59,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:59,797 INFO L93 Difference]: Finished difference Result 2820 states and 3624 transitions. [2024-11-28 04:36:59,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:36:59,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 164 [2024-11-28 04:36:59,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:59,802 INFO L225 Difference]: With dead ends: 2820 [2024-11-28 04:36:59,802 INFO L226 Difference]: Without dead ends: 2818 [2024-11-28 04:36:59,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:36:59,804 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 242 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:59,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 353 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:59,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2024-11-28 04:37:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2498. [2024-11-28 04:37:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2239 states have (on average 1.2358195623046002) internal successors, (2767), 2272 states have internal predecessors, (2767), 223 states have call successors, (223), 6 states have call predecessors, (223), 6 states have return successors, (223), 219 states have call predecessors, (223), 223 states have call successors, (223) [2024-11-28 04:37:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3213 transitions. [2024-11-28 04:37:00,048 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3213 transitions. Word has length 164 [2024-11-28 04:37:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:00,048 INFO L471 AbstractCegarLoop]: Abstraction has 2498 states and 3213 transitions. [2024-11-28 04:37:00,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3213 transitions. [2024-11-28 04:37:00,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:37:00,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:00,049 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:00,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-28 04:37:00,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:00,249 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:00,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:00,250 INFO L85 PathProgramCache]: Analyzing trace with hash -944227664, now seen corresponding path program 3 times [2024-11-28 04:37:00,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:00,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636982931] [2024-11-28 04:37:00,250 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:00,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:00,270 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:37:00,271 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:00,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589944725] [2024-11-28 04:37:00,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:00,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:00,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:00,275 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:00,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 04:37:00,350 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:37:00,351 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:00,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:37:00,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 04:37:01,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:01,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636982931] [2024-11-28 04:37:01,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589944725] [2024-11-28 04:37:01,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589944725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:01,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:01,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:37:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81441447] [2024-11-28 04:37:01,331 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:01,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:37:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:01,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:37:01,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:37:01,332 INFO L87 Difference]: Start difference. First operand 2498 states and 3213 transitions. Second operand has 10 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:02,427 INFO L93 Difference]: Finished difference Result 3189 states and 4088 transitions. [2024-11-28 04:37:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:37:02,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 164 [2024-11-28 04:37:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:02,431 INFO L225 Difference]: With dead ends: 3189 [2024-11-28 04:37:02,431 INFO L226 Difference]: Without dead ends: 3187 [2024-11-28 04:37:02,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:37:02,432 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 511 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:02,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 669 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:37:02,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2024-11-28 04:37:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 2539. [2024-11-28 04:37:02,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2276 states have (on average 1.2355008787346222) internal successors, (2812), 2309 states have internal predecessors, (2812), 227 states have call successors, (227), 6 states have call predecessors, (227), 6 states have return successors, (227), 223 states have call predecessors, (227), 227 states have call successors, (227) [2024-11-28 04:37:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3266 transitions. [2024-11-28 04:37:02,683 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3266 transitions. Word has length 164 [2024-11-28 04:37:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:02,683 INFO L471 AbstractCegarLoop]: Abstraction has 2539 states and 3266 transitions. [2024-11-28 04:37:02,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3266 transitions. [2024-11-28 04:37:02,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:37:02,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:02,684 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, 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 04:37:02,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-28 04:37:02,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:02,885 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:02,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1052098132, now seen corresponding path program 2 times [2024-11-28 04:37:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:02,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315908006] [2024-11-28 04:37:02,885 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:37:02,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:02,903 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:37:02,904 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:02,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533109418] [2024-11-28 04:37:02,905 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:37:02,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:02,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:02,907 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:02,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 04:37:02,974 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:37:02,974 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:02,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:37:02,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 04:37:03,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:04,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:04,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315908006] [2024-11-28 04:37:04,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:04,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533109418] [2024-11-28 04:37:04,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533109418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:04,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:04,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:37:04,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060527031] [2024-11-28 04:37:04,259 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:04,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:37:04,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:04,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:37:04,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:37:04,260 INFO L87 Difference]: Start difference. First operand 2539 states and 3266 transitions. Second operand has 11 states, 10 states have (on average 11.3) internal successors, (113), 11 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:05,545 INFO L93 Difference]: Finished difference Result 2761 states and 3537 transitions. [2024-11-28 04:37:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:37:05,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.3) internal successors, (113), 11 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 167 [2024-11-28 04:37:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:05,548 INFO L225 Difference]: With dead ends: 2761 [2024-11-28 04:37:05,549 INFO L226 Difference]: Without dead ends: 2760 [2024-11-28 04:37:05,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:37:05,549 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 218 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:05,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 489 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:37:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2024-11-28 04:37:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2539. [2024-11-28 04:37:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2276 states have (on average 1.2350615114235501) internal successors, (2811), 2309 states have internal predecessors, (2811), 227 states have call successors, (227), 6 states have call predecessors, (227), 6 states have return successors, (227), 223 states have call predecessors, (227), 227 states have call successors, (227) [2024-11-28 04:37:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3265 transitions. [2024-11-28 04:37:05,856 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3265 transitions. Word has length 167 [2024-11-28 04:37:05,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:05,856 INFO L471 AbstractCegarLoop]: Abstraction has 2539 states and 3265 transitions. [2024-11-28 04:37:05,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.3) internal successors, (113), 11 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:05,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3265 transitions. [2024-11-28 04:37:05,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:37:05,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:05,857 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, 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 04:37:05,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-28 04:37:06,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:06,058 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:06,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:06,058 INFO L85 PathProgramCache]: Analyzing trace with hash -504611962, now seen corresponding path program 3 times [2024-11-28 04:37:06,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899746927] [2024-11-28 04:37:06,059 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:06,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:06,088 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:37:06,089 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:06,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978712299] [2024-11-28 04:37:06,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:06,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:06,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:06,092 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:06,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 04:37:06,166 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:37:06,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:06,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:37:06,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 04:37:07,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:07,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:07,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899746927] [2024-11-28 04:37:07,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:07,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978712299] [2024-11-28 04:37:07,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978712299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:07,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:07,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:37:07,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465128075] [2024-11-28 04:37:07,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:07,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:37:07,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:07,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:37:07,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:37:07,694 INFO L87 Difference]: Start difference. First operand 2539 states and 3265 transitions. Second operand has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:09,151 INFO L93 Difference]: Finished difference Result 2734 states and 3508 transitions. [2024-11-28 04:37:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:37:09,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 167 [2024-11-28 04:37:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:09,155 INFO L225 Difference]: With dead ends: 2734 [2024-11-28 04:37:09,155 INFO L226 Difference]: Without dead ends: 2733 [2024-11-28 04:37:09,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:37:09,156 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 175 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:09,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 677 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:37:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2024-11-28 04:37:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2539. [2024-11-28 04:37:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2276 states have (on average 1.234622144112478) internal successors, (2810), 2309 states have internal predecessors, (2810), 227 states have call successors, (227), 6 states have call predecessors, (227), 6 states have return successors, (227), 223 states have call predecessors, (227), 227 states have call successors, (227) [2024-11-28 04:37:09,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3264 transitions. [2024-11-28 04:37:09,405 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3264 transitions. Word has length 167 [2024-11-28 04:37:09,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:09,405 INFO L471 AbstractCegarLoop]: Abstraction has 2539 states and 3264 transitions. [2024-11-28 04:37:09,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3264 transitions. [2024-11-28 04:37:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:37:09,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:09,406 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, 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 04:37:09,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-28 04:37:09,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:09,607 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:09,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:09,607 INFO L85 PathProgramCache]: Analyzing trace with hash -188741022, now seen corresponding path program 4 times [2024-11-28 04:37:09,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:09,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535530362] [2024-11-28 04:37:09,607 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:37:09,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:09,626 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:37:09,627 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:09,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939409254] [2024-11-28 04:37:09,628 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:37:09,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:09,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:09,632 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:09,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 04:37:09,734 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:37:09,734 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:09,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:37:09,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-28 04:37:10,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 04:37:10,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535530362] [2024-11-28 04:37:10,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939409254] [2024-11-28 04:37:10,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939409254] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:37:10,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:37:10,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-11-28 04:37:10,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528909065] [2024-11-28 04:37:10,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:10,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:37:10,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:10,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:37:10,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:37:10,907 INFO L87 Difference]: Start difference. First operand 2539 states and 3264 transitions. Second operand has 11 states, 10 states have (on average 19.6) internal successors, (196), 11 states have internal predecessors, (196), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-28 04:37:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:13,727 INFO L93 Difference]: Finished difference Result 3768 states and 4829 transitions. [2024-11-28 04:37:13,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:37:13,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 19.6) internal successors, (196), 11 states have internal predecessors, (196), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 167 [2024-11-28 04:37:13,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:13,732 INFO L225 Difference]: With dead ends: 3768 [2024-11-28 04:37:13,732 INFO L226 Difference]: Without dead ends: 3766 [2024-11-28 04:37:13,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=217, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:37:13,733 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1237 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:13,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 862 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:37:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2024-11-28 04:37:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 2946. [2024-11-28 04:37:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2648 states have (on average 1.2371601208459215) internal successors, (3276), 2681 states have internal predecessors, (3276), 262 states have call successors, (262), 6 states have call predecessors, (262), 6 states have return successors, (262), 258 states have call predecessors, (262), 262 states have call successors, (262) [2024-11-28 04:37:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3800 transitions. [2024-11-28 04:37:14,039 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3800 transitions. Word has length 167 [2024-11-28 04:37:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:14,039 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 3800 transitions. [2024-11-28 04:37:14,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 19.6) internal successors, (196), 11 states have internal predecessors, (196), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-28 04:37:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3800 transitions. [2024-11-28 04:37:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:37:14,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:14,040 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:14,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-11-28 04:37:14,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2024-11-28 04:37:14,241 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:14,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1744696204, now seen corresponding path program 2 times [2024-11-28 04:37:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:14,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626133680] [2024-11-28 04:37:14,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:37:14,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:14,259 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:37:14,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:14,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870430652] [2024-11-28 04:37:14,260 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:37:14,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:14,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:14,265 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:14,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 04:37:14,345 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:37:14,345 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:14,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 04:37:14,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 24 proven. 138 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-28 04:37:15,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:15,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626133680] [2024-11-28 04:37:15,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870430652] [2024-11-28 04:37:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870430652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:15,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:37:15,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815586545] [2024-11-28 04:37:15,911 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:15,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:37:15,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:15,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:37:15,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:37:15,912 INFO L87 Difference]: Start difference. First operand 2946 states and 3800 transitions. Second operand has 13 states, 12 states have (on average 9.75) internal successors, (117), 13 states have internal predecessors, (117), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:17,926 INFO L93 Difference]: Finished difference Result 3150 states and 4053 transitions. [2024-11-28 04:37:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:37:17,926 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 13 states have internal predecessors, (117), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 168 [2024-11-28 04:37:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:17,930 INFO L225 Difference]: With dead ends: 3150 [2024-11-28 04:37:17,930 INFO L226 Difference]: Without dead ends: 3118 [2024-11-28 04:37:17,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:37:17,931 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 86 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:17,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 731 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:37:17,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2024-11-28 04:37:18,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2946. [2024-11-28 04:37:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2648 states have (on average 1.236404833836858) internal successors, (3274), 2681 states have internal predecessors, (3274), 262 states have call successors, (262), 6 states have call predecessors, (262), 6 states have return successors, (262), 258 states have call predecessors, (262), 262 states have call successors, (262) [2024-11-28 04:37:18,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3798 transitions. [2024-11-28 04:37:18,318 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3798 transitions. Word has length 168 [2024-11-28 04:37:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:18,319 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 3798 transitions. [2024-11-28 04:37:18,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 13 states have internal predecessors, (117), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:18,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3798 transitions. [2024-11-28 04:37:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:37:18,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:18,320 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:18,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-28 04:37:18,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:18,521 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:18,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:18,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1536898434, now seen corresponding path program 3 times [2024-11-28 04:37:18,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:18,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77428202] [2024-11-28 04:37:18,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:18,554 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:37:18,554 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:18,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536550342] [2024-11-28 04:37:18,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:18,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:18,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:18,559 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:18,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 04:37:18,639 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:37:18,639 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:18,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:37:18,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:19,986 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 24 proven. 111 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 04:37:19,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:25,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77428202] [2024-11-28 04:37:25,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536550342] [2024-11-28 04:37:25,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536550342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:25,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:25,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:37:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394984381] [2024-11-28 04:37:25,390 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:25,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:37:25,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:25,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:37:25,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=231, Unknown=1, NotChecked=0, Total=272 [2024-11-28 04:37:25,391 INFO L87 Difference]: Start difference. First operand 2946 states and 3798 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:37:31,233 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 04:37:32,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:37:35,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:37:36,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:37:40,989 WARN L539 Checker$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 04:37:45,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:37:48,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:37:52,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:52,275 INFO L93 Difference]: Finished difference Result 3429 states and 4419 transitions. [2024-11-28 04:37:52,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:37:52,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 168 [2024-11-28 04:37:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:52,282 INFO L225 Difference]: With dead ends: 3429 [2024-11-28 04:37:52,282 INFO L226 Difference]: Without dead ends: 3376 [2024-11-28 04:37:52,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=71, Invalid=308, Unknown=1, NotChecked=0, Total=380 [2024-11-28 04:37:52,283 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 149 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:52,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 542 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2506 Invalid, 3 Unknown, 0 Unchecked, 26.3s Time] [2024-11-28 04:37:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2024-11-28 04:37:52,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 2946. [2024-11-28 04:37:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2648 states have (on average 1.2345166163141994) internal successors, (3269), 2681 states have internal predecessors, (3269), 262 states have call successors, (262), 6 states have call predecessors, (262), 6 states have return successors, (262), 258 states have call predecessors, (262), 262 states have call successors, (262) [2024-11-28 04:37:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3793 transitions. [2024-11-28 04:37:52,768 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3793 transitions. Word has length 168 [2024-11-28 04:37:52,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:52,768 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 3793 transitions. [2024-11-28 04:37:52,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:37:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3793 transitions. [2024-11-28 04:37:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:37:52,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:52,769 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:52,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-28 04:37:52,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:52,970 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:52,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1556004314, now seen corresponding path program 4 times [2024-11-28 04:37:52,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:52,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431969757] [2024-11-28 04:37:52,970 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:37:52,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:52,989 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:37:52,989 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:52,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241414311] [2024-11-28 04:37:52,990 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:37:52,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:52,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:52,992 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 04:37:53,117 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:37:53,117 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:53,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:37:53,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 04:37:54,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:54,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:54,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431969757] [2024-11-28 04:37:54,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:54,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241414311] [2024-11-28 04:37:54,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241414311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:54,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:54,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:37:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025323898] [2024-11-28 04:37:54,382 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:54,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:37:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:54,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:37:54,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:37:54,383 INFO L87 Difference]: Start difference. First operand 2946 states and 3793 transitions. Second operand has 11 states, 10 states have (on average 11.4) internal successors, (114), 11 states have internal predecessors, (114), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:56,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:56,560 INFO L93 Difference]: Finished difference Result 3267 states and 4204 transitions. [2024-11-28 04:37:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:37:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.4) internal successors, (114), 11 states have internal predecessors, (114), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 168 [2024-11-28 04:37:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:56,564 INFO L225 Difference]: With dead ends: 3267 [2024-11-28 04:37:56,564 INFO L226 Difference]: Without dead ends: 3263 [2024-11-28 04:37:56,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:37:56,565 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 117 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:56,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 653 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:37:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2024-11-28 04:37:56,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 2902. [2024-11-28 04:37:56,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2609 states have (on average 1.2311230356458414) internal successors, (3212), 2642 states have internal predecessors, (3212), 257 states have call successors, (257), 6 states have call predecessors, (257), 6 states have return successors, (257), 253 states have call predecessors, (257), 257 states have call successors, (257) [2024-11-28 04:37:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 3726 transitions. [2024-11-28 04:37:56,889 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 3726 transitions. Word has length 168 [2024-11-28 04:37:56,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:56,889 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 3726 transitions. [2024-11-28 04:37:56,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.4) internal successors, (114), 11 states have internal predecessors, (114), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:37:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 3726 transitions. [2024-11-28 04:37:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:37:56,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:56,890 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:56,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-28 04:37:57,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:57,091 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:37:57,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:57,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1797760271, now seen corresponding path program 3 times [2024-11-28 04:37:57,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:57,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472135127] [2024-11-28 04:37:57,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:57,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:57,115 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:37:57,115 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:57,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478431301] [2024-11-28 04:37:57,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:57,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:57,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:57,122 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:57,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 04:37:57,190 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:37:57,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:57,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:37:57,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 48 proven. 79 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-28 04:38:02,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:03,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:03,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472135127] [2024-11-28 04:38:03,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:38:03,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478431301] [2024-11-28 04:38:03,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478431301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:03,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:38:03,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:38:03,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497682322] [2024-11-28 04:38:03,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:03,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:38:03,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:03,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:38:03,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=284, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:38:03,109 INFO L87 Difference]: Start difference. First operand 2902 states and 3726 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:38:07,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:11,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:13,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:17,631 WARN L539 Checker$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 04:38:21,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:25,805 WARN L539 Checker$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 04:38:29,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:33,886 WARN L539 Checker$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 04:38:37,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:44,637 WARN L539 Checker$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 04:38:48,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:51,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:55,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:00,119 WARN L539 Checker$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 04:39:04,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:08,368 WARN L539 Checker$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 04:39:12,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:16,487 WARN L539 Checker$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 04:39:20,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:25,629 WARN L539 Checker$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 04:39:28,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:32,507 WARN L539 Checker$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 04:39:36,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:40,691 WARN L539 Checker$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 04:39:44,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:49,152 WARN L539 Checker$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 04:39:53,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:57,824 WARN L539 Checker$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 04:40:01,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:40:05,955 WARN L539 Checker$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 04:40:10,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:40:14,131 WARN L539 Checker$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 04:40:18,388 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 04:40:19,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:19,923 INFO L93 Difference]: Finished difference Result 3034 states and 3885 transitions. [2024-11-28 04:40:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:40:19,923 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 175 [2024-11-28 04:40:19,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:19,927 INFO L225 Difference]: With dead ends: 3034 [2024-11-28 04:40:19,927 INFO L226 Difference]: Without dead ends: 3032 [2024-11-28 04:40:19,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=206, Invalid=663, Unknown=1, NotChecked=0, Total=870 [2024-11-28 04:40:19,928 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 412 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 37 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:19,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 311 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1096 Invalid, 30 Unknown, 0 Unchecked, 133.2s Time] [2024-11-28 04:40:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2024-11-28 04:40:20,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2894. [2024-11-28 04:40:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2602 states have (on average 1.2298232129131437) internal successors, (3200), 2635 states have internal predecessors, (3200), 256 states have call successors, (256), 6 states have call predecessors, (256), 6 states have return successors, (256), 252 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 04:40:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3712 transitions. [2024-11-28 04:40:20,308 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3712 transitions. Word has length 175 [2024-11-28 04:40:20,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:20,309 INFO L471 AbstractCegarLoop]: Abstraction has 2894 states and 3712 transitions. [2024-11-28 04:40:20,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:40:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3712 transitions. [2024-11-28 04:40:20,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:40:20,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:20,311 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:20,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 04:40:20,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:20,511 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:40:20,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:20,512 INFO L85 PathProgramCache]: Analyzing trace with hash -672214975, now seen corresponding path program 1 times [2024-11-28 04:40:20,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:20,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836211418] [2024-11-28 04:40:20,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:40:20,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595225222] [2024-11-28 04:40:20,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:20,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:20,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:20,527 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:20,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 04:40:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:20,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:40:20,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:40:21,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:22,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:22,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836211418] [2024-11-28 04:40:22,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595225222] [2024-11-28 04:40:22,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595225222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:22,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:22,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:40:22,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740249120] [2024-11-28 04:40:22,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:22,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:40:22,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:22,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:40:22,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:40:22,071 INFO L87 Difference]: Start difference. First operand 2894 states and 3712 transitions. Second operand has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:23,472 INFO L93 Difference]: Finished difference Result 3133 states and 4031 transitions. [2024-11-28 04:40:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:40:23,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 175 [2024-11-28 04:40:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:23,476 INFO L225 Difference]: With dead ends: 3133 [2024-11-28 04:40:23,476 INFO L226 Difference]: Without dead ends: 3131 [2024-11-28 04:40:23,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:40:23,477 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 155 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:23,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 455 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:40:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2024-11-28 04:40:23,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2932. [2024-11-28 04:40:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2637 states have (on average 1.2301858172165339) internal successors, (3244), 2670 states have internal predecessors, (3244), 259 states have call successors, (259), 6 states have call predecessors, (259), 6 states have return successors, (259), 255 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:40:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 3762 transitions. [2024-11-28 04:40:23,839 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 3762 transitions. Word has length 175 [2024-11-28 04:40:23,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:23,839 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 3762 transitions. [2024-11-28 04:40:23,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 3762 transitions. [2024-11-28 04:40:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:40:23,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:23,840 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, 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 04:40:23,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-11-28 04:40:24,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-28 04:40:24,041 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:40:24,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:24,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1476259536, now seen corresponding path program 2 times [2024-11-28 04:40:24,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:24,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987826853] [2024-11-28 04:40:24,041 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:24,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:24,056 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:24,056 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:24,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175517580] [2024-11-28 04:40:24,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:24,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:24,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:24,060 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:24,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 04:40:24,218 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:24,218 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:24,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:40:24,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:40:25,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:29,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:29,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987826853] [2024-11-28 04:40:29,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:29,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175517580] [2024-11-28 04:40:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175517580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:29,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:29,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:40:29,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327881322] [2024-11-28 04:40:29,895 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:29,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:40:29,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:29,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:40:29,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=113, Unknown=1, NotChecked=0, Total=156 [2024-11-28 04:40:29,896 INFO L87 Difference]: Start difference. First operand 2932 states and 3762 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:31,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:31,214 INFO L93 Difference]: Finished difference Result 3138 states and 4033 transitions. [2024-11-28 04:40:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:40:31,215 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 178 [2024-11-28 04:40:31,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:31,219 INFO L225 Difference]: With dead ends: 3138 [2024-11-28 04:40:31,219 INFO L226 Difference]: Without dead ends: 3137 [2024-11-28 04:40:31,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=64, Invalid=145, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:40:31,220 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 162 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:31,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 542 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:40:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2024-11-28 04:40:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 2932. [2024-11-28 04:40:31,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2637 states have (on average 1.229806598407281) internal successors, (3243), 2670 states have internal predecessors, (3243), 259 states have call successors, (259), 6 states have call predecessors, (259), 6 states have return successors, (259), 255 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:40:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 3761 transitions. [2024-11-28 04:40:31,559 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 3761 transitions. Word has length 178 [2024-11-28 04:40:31,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:31,559 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 3761 transitions. [2024-11-28 04:40:31,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 3761 transitions. [2024-11-28 04:40:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:40:31,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:31,560 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, 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 04:40:31,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-28 04:40:31,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-28 04:40:31,761 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:40:31,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash -486048140, now seen corresponding path program 3 times [2024-11-28 04:40:31,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:31,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292601734] [2024-11-28 04:40:31,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:40:31,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:31,788 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:40:31,789 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:31,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358561342] [2024-11-28 04:40:31,790 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:40:31,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:31,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:31,794 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:31,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 04:40:33,708 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:40:33,708 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:33,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:40:33,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:40:35,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:39,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:39,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292601734] [2024-11-28 04:40:39,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:39,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358561342] [2024-11-28 04:40:39,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358561342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:39,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:39,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:40:39,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042613771] [2024-11-28 04:40:39,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:39,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:40:39,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:39,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:40:39,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=134, Unknown=1, NotChecked=0, Total=182 [2024-11-28 04:40:39,450 INFO L87 Difference]: Start difference. First operand 2932 states and 3761 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:40,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:40,630 INFO L93 Difference]: Finished difference Result 3109 states and 3991 transitions. [2024-11-28 04:40:40,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:40:40,631 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 178 [2024-11-28 04:40:40,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:40,634 INFO L225 Difference]: With dead ends: 3109 [2024-11-28 04:40:40,634 INFO L226 Difference]: Without dead ends: 3108 [2024-11-28 04:40:40,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=56, Invalid=153, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:40:40,636 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 227 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:40,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 505 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:40:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2024-11-28 04:40:40,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2932. [2024-11-28 04:40:40,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2637 states have (on average 1.2294273795980282) internal successors, (3242), 2670 states have internal predecessors, (3242), 259 states have call successors, (259), 6 states have call predecessors, (259), 6 states have return successors, (259), 255 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:40:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 3760 transitions. [2024-11-28 04:40:41,000 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 3760 transitions. Word has length 178 [2024-11-28 04:40:41,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:41,000 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 3760 transitions. [2024-11-28 04:40:41,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 3760 transitions. [2024-11-28 04:40:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:40:41,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:41,001 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, 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 04:40:41,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-28 04:40:41,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-28 04:40:41,202 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:40:41,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2138886654, now seen corresponding path program 4 times [2024-11-28 04:40:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002849790] [2024-11-28 04:40:41,203 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:40:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:41,220 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:40:41,220 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:41,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533779584] [2024-11-28 04:40:41,221 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:40:41,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:41,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:41,225 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:41,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 04:40:41,318 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:40:41,318 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:41,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:40:41,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:40:42,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:47,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002849790] [2024-11-28 04:40:47,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:47,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533779584] [2024-11-28 04:40:47,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533779584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:47,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:47,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:40:47,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398125549] [2024-11-28 04:40:47,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:47,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:40:47,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:47,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:40:47,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=114, Unknown=1, NotChecked=0, Total=156 [2024-11-28 04:40:47,160 INFO L87 Difference]: Start difference. First operand 2932 states and 3760 transitions. Second operand has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:48,627 INFO L93 Difference]: Finished difference Result 3150 states and 4047 transitions. [2024-11-28 04:40:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:40:48,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 178 [2024-11-28 04:40:48,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:48,631 INFO L225 Difference]: With dead ends: 3150 [2024-11-28 04:40:48,631 INFO L226 Difference]: Without dead ends: 3149 [2024-11-28 04:40:48,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=100, Invalid=279, Unknown=1, NotChecked=0, Total=380 [2024-11-28 04:40:48,632 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 185 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:48,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 624 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:40:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-11-28 04:40:48,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2932. [2024-11-28 04:40:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2637 states have (on average 1.229048160788775) internal successors, (3241), 2670 states have internal predecessors, (3241), 259 states have call successors, (259), 6 states have call predecessors, (259), 6 states have return successors, (259), 255 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:40:48,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 3759 transitions. [2024-11-28 04:40:48,983 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 3759 transitions. Word has length 178 [2024-11-28 04:40:48,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:48,984 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 3759 transitions. [2024-11-28 04:40:48,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 3759 transitions. [2024-11-28 04:40:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 04:40:48,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:48,985 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, 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 04:40:48,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2024-11-28 04:40:49,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-28 04:40:49,185 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:40:49,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:49,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1480594555, now seen corresponding path program 2 times [2024-11-28 04:40:49,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:49,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752015988] [2024-11-28 04:40:49,186 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:49,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:49,199 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:49,199 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:49,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430901055] [2024-11-28 04:40:49,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:49,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:49,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:49,202 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:49,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 04:40:49,289 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:49,289 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:49,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:40:49,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:40:50,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:50,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:50,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752015988] [2024-11-28 04:40:50,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:50,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430901055] [2024-11-28 04:40:50,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430901055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:50,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:50,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:40:50,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071612029] [2024-11-28 04:40:50,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:50,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:40:50,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:50,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:40:50,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:40:50,287 INFO L87 Difference]: Start difference. First operand 2932 states and 3759 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:51,859 INFO L93 Difference]: Finished difference Result 3046 states and 3904 transitions. [2024-11-28 04:40:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:40:51,859 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 179 [2024-11-28 04:40:51,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:51,863 INFO L225 Difference]: With dead ends: 3046 [2024-11-28 04:40:51,863 INFO L226 Difference]: Without dead ends: 3044 [2024-11-28 04:40:51,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:40:51,864 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:51,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 733 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:40:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2024-11-28 04:40:52,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2894. [2024-11-28 04:40:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2602 states have (on average 1.2271329746348962) internal successors, (3193), 2635 states have internal predecessors, (3193), 256 states have call successors, (256), 6 states have call predecessors, (256), 6 states have return successors, (256), 252 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 04:40:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3705 transitions. [2024-11-28 04:40:52,226 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3705 transitions. Word has length 179 [2024-11-28 04:40:52,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:52,226 INFO L471 AbstractCegarLoop]: Abstraction has 2894 states and 3705 transitions. [2024-11-28 04:40:52,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:40:52,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3705 transitions. [2024-11-28 04:40:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 04:40:52,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:52,227 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, 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 04:40:52,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-28 04:40:52,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:52,428 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:40:52,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2112376929, now seen corresponding path program 3 times [2024-11-28 04:40:52,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:52,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018917724] [2024-11-28 04:40:52,428 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:40:52,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:52,458 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:40:52,459 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:52,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71127580] [2024-11-28 04:40:52,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:40:52,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:52,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:52,462 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:52,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-28 04:40:52,569 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:40:52,569 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:52,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:40:52,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 54 proven. 129 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-28 04:40:55,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:06,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:06,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018917724] [2024-11-28 04:41:06,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:41:06,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71127580] [2024-11-28 04:41:06,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71127580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:06,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:41:06,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:41:06,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596977427] [2024-11-28 04:41:06,191 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:06,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:41:06,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:06,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:41:06,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=656, Unknown=1, NotChecked=0, Total=812 [2024-11-28 04:41:06,192 INFO L87 Difference]: Start difference. First operand 2894 states and 3705 transitions. Second operand has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 04:41:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:16,154 INFO L93 Difference]: Finished difference Result 3284 states and 4226 transitions. [2024-11-28 04:41:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:41:16,154 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 179 [2024-11-28 04:41:16,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:16,158 INFO L225 Difference]: With dead ends: 3284 [2024-11-28 04:41:16,159 INFO L226 Difference]: Without dead ends: 3280 [2024-11-28 04:41:16,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=209, Invalid=846, Unknown=1, NotChecked=0, Total=1056 [2024-11-28 04:41:16,160 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 411 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 4130 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:16,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 659 Invalid, 4154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4130 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-28 04:41:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2024-11-28 04:41:16,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 2859. [2024-11-28 04:41:16,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2570 states have (on average 1.2237354085603114) internal successors, (3145), 2603 states have internal predecessors, (3145), 253 states have call successors, (253), 6 states have call predecessors, (253), 6 states have return successors, (253), 249 states have call predecessors, (253), 253 states have call successors, (253) [2024-11-28 04:41:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 3651 transitions. [2024-11-28 04:41:16,572 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 3651 transitions. Word has length 179 [2024-11-28 04:41:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:16,572 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 3651 transitions. [2024-11-28 04:41:16,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 04:41:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 3651 transitions. [2024-11-28 04:41:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 04:41:16,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:16,573 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, 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 04:41:16,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-11-28 04:41:16,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:16,774 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:16,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:16,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1880976749, now seen corresponding path program 4 times [2024-11-28 04:41:16,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:16,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31649190] [2024-11-28 04:41:16,774 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:41:16,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:16,797 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:41:16,797 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:41:16,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707468583] [2024-11-28 04:41:16,798 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:41:16,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:16,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:16,803 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:16,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-28 04:41:16,908 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:41:16,909 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:16,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:41:16,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:41:19,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 04:41:20,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:20,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31649190] [2024-11-28 04:41:20,483 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:41:20,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707468583] [2024-11-28 04:41:20,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707468583] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:20,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:41:20,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2024-11-28 04:41:20,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146402741] [2024-11-28 04:41:20,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:20,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:41:20,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:20,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:41:20,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:41:20,485 INFO L87 Difference]: Start difference. First operand 2859 states and 3651 transitions. Second operand has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 04:41:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:33,727 INFO L93 Difference]: Finished difference Result 3292 states and 4221 transitions. [2024-11-28 04:41:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-28 04:41:33,727 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 179 [2024-11-28 04:41:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:33,731 INFO L225 Difference]: With dead ends: 3292 [2024-11-28 04:41:33,731 INFO L226 Difference]: Without dead ends: 3290 [2024-11-28 04:41:33,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1061, Invalid=3769, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 04:41:33,732 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 1398 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 3982 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 4171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 3982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:33,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 799 Invalid, 4171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 3982 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-28 04:41:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2024-11-28 04:41:34,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 2886. [2024-11-28 04:41:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2596 states have (on average 1.2191833590138674) internal successors, (3165), 2628 states have internal predecessors, (3165), 254 states have call successors, (254), 6 states have call predecessors, (254), 6 states have return successors, (254), 251 states have call predecessors, (254), 254 states have call successors, (254) [2024-11-28 04:41:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3673 transitions. [2024-11-28 04:41:34,094 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3673 transitions. Word has length 179 [2024-11-28 04:41:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:34,094 INFO L471 AbstractCegarLoop]: Abstraction has 2886 states and 3673 transitions. [2024-11-28 04:41:34,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 04:41:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3673 transitions. [2024-11-28 04:41:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-28 04:41:34,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:34,096 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:34,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:34,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:34,296 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:34,297 INFO L85 PathProgramCache]: Analyzing trace with hash 803916424, now seen corresponding path program 1 times [2024-11-28 04:41:34,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:34,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974119742] [2024-11-28 04:41:34,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:34,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:41:34,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:34,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974119742] [2024-11-28 04:41:34,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974119742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:34,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062062949] [2024-11-28 04:41:34,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:34,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:34,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:34,436 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:34,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-28 04:41:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:34,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:41:34,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:41:34,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:41:34,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062062949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:34,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:34,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:41:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301581035] [2024-11-28 04:41:34,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:34,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:41:34,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:34,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:41:34,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:41:34,741 INFO L87 Difference]: Start difference. First operand 2886 states and 3673 transitions. Second operand has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 04:41:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:35,537 INFO L93 Difference]: Finished difference Result 2911 states and 3698 transitions. [2024-11-28 04:41:35,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:41:35,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 181 [2024-11-28 04:41:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:35,541 INFO L225 Difference]: With dead ends: 2911 [2024-11-28 04:41:35,541 INFO L226 Difference]: Without dead ends: 2852 [2024-11-28 04:41:35,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:41:35,542 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 102 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:35,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 154 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:41:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2024-11-28 04:41:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2838. [2024-11-28 04:41:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2554 states have (on average 1.2180892717306187) internal successors, (3111), 2584 states have internal predecessors, (3111), 248 states have call successors, (248), 6 states have call predecessors, (248), 6 states have return successors, (248), 247 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-28 04:41:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3607 transitions. [2024-11-28 04:41:35,870 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3607 transitions. Word has length 181 [2024-11-28 04:41:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:35,870 INFO L471 AbstractCegarLoop]: Abstraction has 2838 states and 3607 transitions. [2024-11-28 04:41:35,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 04:41:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3607 transitions. [2024-11-28 04:41:35,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 04:41:35,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:35,881 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, 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] [2024-11-28 04:41:35,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-11-28 04:41:36,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:36,082 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:36,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1735704167, now seen corresponding path program 1 times [2024-11-28 04:41:36,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:36,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774469116] [2024-11-28 04:41:36,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:36,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:36,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774469116] [2024-11-28 04:41:36,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774469116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:36,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125106796] [2024-11-28 04:41:36,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:36,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:36,266 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:36,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-28 04:41:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:36,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:41:36,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-28 04:41:36,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-28 04:41:37,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125106796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:37,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:37,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-28 04:41:37,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255897363] [2024-11-28 04:41:37,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:37,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:41:37,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:37,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:41:37,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:41:37,035 INFO L87 Difference]: Start difference. First operand 2838 states and 3607 transitions. Second operand has 18 states, 17 states have (on average 17.176470588235293) internal successors, (292), 18 states have internal predecessors, (292), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-28 04:41:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:39,011 INFO L93 Difference]: Finished difference Result 3728 states and 4694 transitions. [2024-11-28 04:41:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 04:41:39,011 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 17.176470588235293) internal successors, (292), 18 states have internal predecessors, (292), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) Word has length 189 [2024-11-28 04:41:39,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:39,015 INFO L225 Difference]: With dead ends: 3728 [2024-11-28 04:41:39,015 INFO L226 Difference]: Without dead ends: 3726 [2024-11-28 04:41:39,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=634, Invalid=1346, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 04:41:39,016 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 842 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:39,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1533 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:41:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2024-11-28 04:41:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 2955. [2024-11-28 04:41:39,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2661 states have (on average 1.2187147688838782) internal successors, (3243), 2691 states have internal predecessors, (3243), 258 states have call successors, (258), 6 states have call predecessors, (258), 6 states have return successors, (258), 257 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-28 04:41:39,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 3759 transitions. [2024-11-28 04:41:39,412 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 3759 transitions. Word has length 189 [2024-11-28 04:41:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:39,412 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 3759 transitions. [2024-11-28 04:41:39,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 17.176470588235293) internal successors, (292), 18 states have internal predecessors, (292), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-28 04:41:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 3759 transitions. [2024-11-28 04:41:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 04:41:39,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:39,414 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, 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] [2024-11-28 04:41:39,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:39,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-28 04:41:39,614 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:39,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:39,614 INFO L85 PathProgramCache]: Analyzing trace with hash -928522727, now seen corresponding path program 1 times [2024-11-28 04:41:39,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:39,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842272863] [2024-11-28 04:41:39,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:39,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:39,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842272863] [2024-11-28 04:41:39,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842272863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:39,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307522682] [2024-11-28 04:41:39,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:39,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:39,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:39,796 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:39,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-28 04:41:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:39,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:41:39,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:40,254 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 56 proven. 114 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:40,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:40,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307522682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:40,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:40,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-28 04:41:40,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407569121] [2024-11-28 04:41:40,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:40,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:41:40,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:40,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:41:40,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:41:40,738 INFO L87 Difference]: Start difference. First operand 2955 states and 3759 transitions. Second operand has 20 states, 19 states have (on average 19.0) internal successors, (361), 20 states have internal predecessors, (361), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-11-28 04:41:44,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:44,028 INFO L93 Difference]: Finished difference Result 4436 states and 5625 transitions. [2024-11-28 04:41:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-28 04:41:44,028 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 19.0) internal successors, (361), 20 states have internal predecessors, (361), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) Word has length 189 [2024-11-28 04:41:44,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:44,032 INFO L225 Difference]: With dead ends: 4436 [2024-11-28 04:41:44,032 INFO L226 Difference]: Without dead ends: 4434 [2024-11-28 04:41:44,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1285, Invalid=3827, Unknown=0, NotChecked=0, Total=5112 [2024-11-28 04:41:44,033 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1631 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:44,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 1569 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:41:44,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2024-11-28 04:41:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 2974. [2024-11-28 04:41:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2678 states have (on average 1.217326362957431) internal successors, (3260), 2708 states have internal predecessors, (3260), 260 states have call successors, (260), 6 states have call predecessors, (260), 6 states have return successors, (260), 259 states have call predecessors, (260), 260 states have call successors, (260) [2024-11-28 04:41:44,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3780 transitions. [2024-11-28 04:41:44,442 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3780 transitions. Word has length 189 [2024-11-28 04:41:44,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:44,442 INFO L471 AbstractCegarLoop]: Abstraction has 2974 states and 3780 transitions. [2024-11-28 04:41:44,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 19.0) internal successors, (361), 20 states have internal predecessors, (361), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-11-28 04:41:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3780 transitions. [2024-11-28 04:41:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:41:44,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:44,443 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, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:44,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-28 04:41:44,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:44,644 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:44,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:44,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1812049925, now seen corresponding path program 1 times [2024-11-28 04:41:44,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:44,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339845090] [2024-11-28 04:41:44,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:44,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:44,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339845090] [2024-11-28 04:41:44,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339845090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895136156] [2024-11-28 04:41:44,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:44,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:44,778 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:44,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-28 04:41:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:44,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:41:44,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:45,356 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:45,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895136156] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:45,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:45,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:41:45,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578730929] [2024-11-28 04:41:45,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:45,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:41:45,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:45,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:41:45,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:41:45,648 INFO L87 Difference]: Start difference. First operand 2974 states and 3780 transitions. Second operand has 14 states, 13 states have (on average 27.846153846153847) internal successors, (362), 14 states have internal predecessors, (362), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-28 04:41:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:47,645 INFO L93 Difference]: Finished difference Result 4233 states and 5438 transitions. [2024-11-28 04:41:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:41:47,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 27.846153846153847) internal successors, (362), 14 states have internal predecessors, (362), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) Word has length 190 [2024-11-28 04:41:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:47,649 INFO L225 Difference]: With dead ends: 4233 [2024-11-28 04:41:47,649 INFO L226 Difference]: Without dead ends: 4231 [2024-11-28 04:41:47,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 371 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 04:41:47,650 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 553 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:47,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 948 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:41:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2024-11-28 04:41:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 3575. [2024-11-28 04:41:48,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3222 states have (on average 1.2302917442582246) internal successors, (3964), 3252 states have internal predecessors, (3964), 317 states have call successors, (317), 6 states have call predecessors, (317), 6 states have return successors, (317), 316 states have call predecessors, (317), 317 states have call successors, (317) [2024-11-28 04:41:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4598 transitions. [2024-11-28 04:41:48,133 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4598 transitions. Word has length 190 [2024-11-28 04:41:48,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:48,134 INFO L471 AbstractCegarLoop]: Abstraction has 3575 states and 4598 transitions. [2024-11-28 04:41:48,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 27.846153846153847) internal successors, (362), 14 states have internal predecessors, (362), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-28 04:41:48,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4598 transitions. [2024-11-28 04:41:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 04:41:48,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:48,135 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, 4, 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] [2024-11-28 04:41:48,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-28 04:41:48,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2024-11-28 04:41:48,336 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:48,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:48,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1364300497, now seen corresponding path program 1 times [2024-11-28 04:41:48,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:48,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746236188] [2024-11-28 04:41:48,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:48,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:48,504 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:48,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:48,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746236188] [2024-11-28 04:41:48,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746236188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:48,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571482478] [2024-11-28 04:41:48,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:48,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:48,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:48,506 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:48,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-28 04:41:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:48,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:41:48,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:49,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:49,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571482478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:49,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:49,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:41:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756273438] [2024-11-28 04:41:49,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:49,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:41:49,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:49,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:41:49,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:41:49,415 INFO L87 Difference]: Start difference. First operand 3575 states and 4598 transitions. Second operand has 14 states, 13 states have (on average 28.307692307692307) internal successors, (368), 14 states have internal predecessors, (368), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-28 04:41:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:51,659 INFO L93 Difference]: Finished difference Result 5399 states and 6992 transitions. [2024-11-28 04:41:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:41:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 28.307692307692307) internal successors, (368), 14 states have internal predecessors, (368), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) Word has length 192 [2024-11-28 04:41:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:51,664 INFO L225 Difference]: With dead ends: 5399 [2024-11-28 04:41:51,664 INFO L226 Difference]: Without dead ends: 5397 [2024-11-28 04:41:51,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=227, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:41:51,666 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 608 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:51,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 849 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:41:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2024-11-28 04:41:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 4621. [2024-11-28 04:41:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4621 states, 4175 states have (on average 1.2433532934131737) internal successors, (5191), 4205 states have internal predecessors, (5191), 410 states have call successors, (410), 6 states have call predecessors, (410), 6 states have return successors, (410), 409 states have call predecessors, (410), 410 states have call successors, (410) [2024-11-28 04:41:52,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4621 states to 4621 states and 6011 transitions. [2024-11-28 04:41:52,297 INFO L78 Accepts]: Start accepts. Automaton has 4621 states and 6011 transitions. Word has length 192 [2024-11-28 04:41:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:52,298 INFO L471 AbstractCegarLoop]: Abstraction has 4621 states and 6011 transitions. [2024-11-28 04:41:52,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 28.307692307692307) internal successors, (368), 14 states have internal predecessors, (368), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-28 04:41:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4621 states and 6011 transitions. [2024-11-28 04:41:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:41:52,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:52,299 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:52,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2024-11-28 04:41:52,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:52,499 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:52,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2059749358, now seen corresponding path program 5 times [2024-11-28 04:41:52,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:52,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972487536] [2024-11-28 04:41:52,500 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:41:52,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:52,521 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:41:52,521 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:41:52,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877113316] [2024-11-28 04:41:52,522 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:41:52,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:52,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:52,526 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:52,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-28 04:41:52,883 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:41:52,883 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:52,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:41:52,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:41:53,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:57,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972487536] [2024-11-28 04:41:57,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:41:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877113316] [2024-11-28 04:41:57,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877113316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:57,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:41:57,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:41:57,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882402764] [2024-11-28 04:41:57,017 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:57,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:41:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:57,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:41:57,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:41:57,018 INFO L87 Difference]: Start difference. First operand 4621 states and 6011 transitions. Second operand has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 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 04:41:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:58,441 INFO L93 Difference]: Finished difference Result 4676 states and 6078 transitions. [2024-11-28 04:41:58,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:41:58,441 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), 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 199 [2024-11-28 04:41:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:58,447 INFO L225 Difference]: With dead ends: 4676 [2024-11-28 04:41:58,447 INFO L226 Difference]: Without dead ends: 4674 [2024-11-28 04:41:58,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:41:58,448 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 78 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:58,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 608 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:41:58,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2024-11-28 04:41:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4637. [2024-11-28 04:41:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4189 states have (on average 1.2425399856767725) internal successors, (5205), 4219 states have internal predecessors, (5205), 412 states have call successors, (412), 6 states have call predecessors, (412), 6 states have return successors, (412), 411 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-28 04:41:59,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6029 transitions. [2024-11-28 04:41:59,103 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6029 transitions. Word has length 199 [2024-11-28 04:41:59,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:59,103 INFO L471 AbstractCegarLoop]: Abstraction has 4637 states and 6029 transitions. [2024-11-28 04:41:59,103 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), 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 04:41:59,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6029 transitions. [2024-11-28 04:41:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:41:59,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:59,104 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:59,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:59,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:59,305 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:41:59,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:59,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2056516534, now seen corresponding path program 6 times [2024-11-28 04:41:59,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:59,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021044233] [2024-11-28 04:41:59,305 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:41:59,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:59,335 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:41:59,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:41:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261825716] [2024-11-28 04:41:59,337 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:41:59,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:59,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:59,342 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:59,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-28 04:41:59,626 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:41:59,626 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:59,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:41:59,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:00,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:04,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:04,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021044233] [2024-11-28 04:42:04,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:04,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261825716] [2024-11-28 04:42:04,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261825716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:04,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:04,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:42:04,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023418091] [2024-11-28 04:42:04,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:04,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:42:04,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:04,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:42:04,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:42:04,068 INFO L87 Difference]: Start difference. First operand 4637 states and 6029 transitions. Second operand has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 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 04:42:05,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:05,585 INFO L93 Difference]: Finished difference Result 4718 states and 6125 transitions. [2024-11-28 04:42:05,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:42:05,585 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), 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 199 [2024-11-28 04:42:05,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:05,592 INFO L225 Difference]: With dead ends: 4718 [2024-11-28 04:42:05,593 INFO L226 Difference]: Without dead ends: 4716 [2024-11-28 04:42:05,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:42:05,595 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 96 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:05,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 537 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:42:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2024-11-28 04:42:06,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4637. [2024-11-28 04:42:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4189 states have (on average 1.2423012652184293) internal successors, (5204), 4219 states have internal predecessors, (5204), 412 states have call successors, (412), 6 states have call predecessors, (412), 6 states have return successors, (412), 411 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-28 04:42:06,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6028 transitions. [2024-11-28 04:42:06,226 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6028 transitions. Word has length 199 [2024-11-28 04:42:06,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:06,227 INFO L471 AbstractCegarLoop]: Abstraction has 4637 states and 6028 transitions. [2024-11-28 04:42:06,227 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), 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 04:42:06,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6028 transitions. [2024-11-28 04:42:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:06,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:06,228 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 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] [2024-11-28 04:42:06,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:06,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:06,428 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:06,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash -729361560, now seen corresponding path program 7 times [2024-11-28 04:42:06,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:06,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508696273] [2024-11-28 04:42:06,429 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:42:06,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:42:06,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945179937] [2024-11-28 04:42:06,446 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:42:06,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:06,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:06,448 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-28 04:42:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:06,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:42:06,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:07,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:07,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:07,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508696273] [2024-11-28 04:42:07,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:07,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945179937] [2024-11-28 04:42:07,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945179937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:07,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:07,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:42:07,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452582545] [2024-11-28 04:42:07,715 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:07,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:42:07,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:07,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:42:07,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:42:07,716 INFO L87 Difference]: Start difference. First operand 4637 states and 6028 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 04:42:09,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:09,330 INFO L93 Difference]: Finished difference Result 4699 states and 6099 transitions. [2024-11-28 04:42:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:42:09,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 199 [2024-11-28 04:42:09,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:09,335 INFO L225 Difference]: With dead ends: 4699 [2024-11-28 04:42:09,335 INFO L226 Difference]: Without dead ends: 4697 [2024-11-28 04:42:09,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:42:09,336 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 87 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:09,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 754 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:42:09,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2024-11-28 04:42:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4643. [2024-11-28 04:42:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4194 states have (on average 1.242012398664759) internal successors, (5209), 4224 states have internal predecessors, (5209), 413 states have call successors, (413), 6 states have call predecessors, (413), 6 states have return successors, (413), 412 states have call predecessors, (413), 413 states have call successors, (413) [2024-11-28 04:42:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6035 transitions. [2024-11-28 04:42:09,986 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6035 transitions. Word has length 199 [2024-11-28 04:42:09,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:09,987 INFO L471 AbstractCegarLoop]: Abstraction has 4643 states and 6035 transitions. [2024-11-28 04:42:09,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 04:42:09,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6035 transitions. [2024-11-28 04:42:09,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:09,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:09,988 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 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] [2024-11-28 04:42:09,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:10,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:10,188 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:10,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1151341244, now seen corresponding path program 8 times [2024-11-28 04:42:10,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:10,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265229472] [2024-11-28 04:42:10,189 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:42:10,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:10,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:42:10,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:42:10,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658900276] [2024-11-28 04:42:10,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:42:10,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:10,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:10,212 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:10,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-28 04:42:10,288 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:42:10,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:10,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:42:10,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:11,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:11,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265229472] [2024-11-28 04:42:11,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:11,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658900276] [2024-11-28 04:42:11,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658900276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:11,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:11,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:42:11,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384289136] [2024-11-28 04:42:11,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:11,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:42:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:11,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:42:11,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:42:11,723 INFO L87 Difference]: Start difference. First operand 4643 states and 6035 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 04:42:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:13,308 INFO L93 Difference]: Finished difference Result 4738 states and 6148 transitions. [2024-11-28 04:42:13,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:42:13,308 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 199 [2024-11-28 04:42:13,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:13,312 INFO L225 Difference]: With dead ends: 4738 [2024-11-28 04:42:13,313 INFO L226 Difference]: Without dead ends: 4736 [2024-11-28 04:42:13,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:42:13,314 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 133 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:13,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 720 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:42:13,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2024-11-28 04:42:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 4643. [2024-11-28 04:42:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4194 states have (on average 1.2417739628040056) internal successors, (5208), 4224 states have internal predecessors, (5208), 413 states have call successors, (413), 6 states have call predecessors, (413), 6 states have return successors, (413), 412 states have call predecessors, (413), 413 states have call successors, (413) [2024-11-28 04:42:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6034 transitions. [2024-11-28 04:42:13,946 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6034 transitions. Word has length 199 [2024-11-28 04:42:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:13,947 INFO L471 AbstractCegarLoop]: Abstraction has 4643 states and 6034 transitions. [2024-11-28 04:42:13,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 04:42:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6034 transitions. [2024-11-28 04:42:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:13,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:13,948 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:13,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2024-11-28 04:42:14,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:14,149 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:14,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:14,149 INFO L85 PathProgramCache]: Analyzing trace with hash 357747958, now seen corresponding path program 9 times [2024-11-28 04:42:14,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:14,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773694671] [2024-11-28 04:42:14,149 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:42:14,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:14,173 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:42:14,173 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:42:14,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054408937] [2024-11-28 04:42:14,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:42:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:14,177 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:14,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-28 04:42:14,299 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:42:14,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:14,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:42:14,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 27 proven. 183 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-28 04:42:15,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:29,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773694671] [2024-11-28 04:42:29,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054408937] [2024-11-28 04:42:29,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054408937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:29,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:29,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:42:29,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087014704] [2024-11-28 04:42:29,960 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:29,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:42:29,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:29,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:42:29,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=275, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:42:29,961 INFO L87 Difference]: Start difference. First operand 4643 states and 6034 transitions. Second operand has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:42:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:32,769 INFO L93 Difference]: Finished difference Result 4737 states and 6138 transitions. [2024-11-28 04:42:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:42:32,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 199 [2024-11-28 04:42:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:32,775 INFO L225 Difference]: With dead ends: 4737 [2024-11-28 04:42:32,775 INFO L226 Difference]: Without dead ends: 4713 [2024-11-28 04:42:32,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=129, Invalid=470, Unknown=1, NotChecked=0, Total=600 [2024-11-28 04:42:32,777 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 421 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:32,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 945 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:42:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4713 states. [2024-11-28 04:42:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4713 to 4632. [2024-11-28 04:42:33,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4185 states have (on average 1.2408602150537635) internal successors, (5193), 4215 states have internal predecessors, (5193), 411 states have call successors, (411), 6 states have call predecessors, (411), 6 states have return successors, (411), 410 states have call predecessors, (411), 411 states have call successors, (411) [2024-11-28 04:42:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6015 transitions. [2024-11-28 04:42:33,410 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 6015 transitions. Word has length 199 [2024-11-28 04:42:33,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:33,410 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 6015 transitions. [2024-11-28 04:42:33,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:42:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 6015 transitions. [2024-11-28 04:42:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:33,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:33,412 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:33,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:33,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:33,612 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:33,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1075139218, now seen corresponding path program 10 times [2024-11-28 04:42:33,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:33,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582348725] [2024-11-28 04:42:33,612 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:42:33,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:33,631 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:42:33,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:42:33,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239994835] [2024-11-28 04:42:33,632 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:42:33,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:33,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:33,634 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:33,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-28 04:42:33,742 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:42:33,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:33,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:42:33,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:34,542 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:35,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:35,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582348725] [2024-11-28 04:42:35,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:35,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239994835] [2024-11-28 04:42:35,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239994835] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:35,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:42:35,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-28 04:42:35,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383147304] [2024-11-28 04:42:35,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:35,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:42:35,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:35,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:42:35,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:42:35,389 INFO L87 Difference]: Start difference. First operand 4632 states and 6015 transitions. Second operand has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 04:42:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:40,697 INFO L93 Difference]: Finished difference Result 4919 states and 6365 transitions. [2024-11-28 04:42:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:42:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 199 [2024-11-28 04:42:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:40,705 INFO L225 Difference]: With dead ends: 4919 [2024-11-28 04:42:40,705 INFO L226 Difference]: Without dead ends: 4917 [2024-11-28 04:42:40,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:42:40,707 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 696 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:40,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 967 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:42:40,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2024-11-28 04:42:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4686. [2024-11-28 04:42:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4686 states, 4235 states have (on average 1.2384887839433294) internal successors, (5245), 4265 states have internal predecessors, (5245), 415 states have call successors, (415), 6 states have call predecessors, (415), 6 states have return successors, (415), 414 states have call predecessors, (415), 415 states have call successors, (415) [2024-11-28 04:42:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4686 states to 4686 states and 6075 transitions. [2024-11-28 04:42:41,375 INFO L78 Accepts]: Start accepts. Automaton has 4686 states and 6075 transitions. Word has length 199 [2024-11-28 04:42:41,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:41,375 INFO L471 AbstractCegarLoop]: Abstraction has 4686 states and 6075 transitions. [2024-11-28 04:42:41,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 04:42:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4686 states and 6075 transitions. [2024-11-28 04:42:41,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:41,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:41,377 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 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] [2024-11-28 04:42:41,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:41,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:41,578 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:41,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1710738876, now seen corresponding path program 11 times [2024-11-28 04:42:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:41,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108934209] [2024-11-28 04:42:41,578 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:42:41,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:41,595 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:42:41,595 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:42:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974106695] [2024-11-28 04:42:41,596 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:42:41,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:41,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:41,601 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:41,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-28 04:42:41,755 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:42:41,755 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:41,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:42:41,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 6 proven. 225 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:42:42,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:43,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:43,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108934209] [2024-11-28 04:42:43,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:43,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974106695] [2024-11-28 04:42:43,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974106695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:43,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:43,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:42:43,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776257310] [2024-11-28 04:42:43,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:43,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:42:43,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:43,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:42:43,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:42:43,047 INFO L87 Difference]: Start difference. First operand 4686 states and 6075 transitions. Second operand has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:42:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:44,715 INFO L93 Difference]: Finished difference Result 4734 states and 6129 transitions. [2024-11-28 04:42:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:42:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 199 [2024-11-28 04:42:44,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:44,720 INFO L225 Difference]: With dead ends: 4734 [2024-11-28 04:42:44,720 INFO L226 Difference]: Without dead ends: 4732 [2024-11-28 04:42:44,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:42:44,721 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 78 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:44,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 806 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:42:44,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2024-11-28 04:42:45,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4686. [2024-11-28 04:42:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4686 states, 4235 states have (on average 1.2382526564344747) internal successors, (5244), 4265 states have internal predecessors, (5244), 415 states have call successors, (415), 6 states have call predecessors, (415), 6 states have return successors, (415), 414 states have call predecessors, (415), 415 states have call successors, (415) [2024-11-28 04:42:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4686 states to 4686 states and 6074 transitions. [2024-11-28 04:42:45,391 INFO L78 Accepts]: Start accepts. Automaton has 4686 states and 6074 transitions. Word has length 199 [2024-11-28 04:42:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:45,391 INFO L471 AbstractCegarLoop]: Abstraction has 4686 states and 6074 transitions. [2024-11-28 04:42:45,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:42:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 4686 states and 6074 transitions. [2024-11-28 04:42:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:45,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:45,393 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 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] [2024-11-28 04:42:45,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-28 04:42:45,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:45,593 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:45,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2132718560, now seen corresponding path program 12 times [2024-11-28 04:42:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:45,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578513069] [2024-11-28 04:42:45,593 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:42:45,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:45,612 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:42:45,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:42:45,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455422665] [2024-11-28 04:42:45,614 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:42:45,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:45,616 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:45,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-28 04:42:49,086 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:42:49,086 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:49,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:42:49,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:50,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:50,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:50,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578513069] [2024-11-28 04:42:50,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:50,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455422665] [2024-11-28 04:42:50,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455422665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:50,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:50,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:42:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559916605] [2024-11-28 04:42:50,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:50,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:42:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:50,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:42:50,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:42:50,607 INFO L87 Difference]: Start difference. First operand 4686 states and 6074 transitions. Second operand has 10 states, 9 states have (on average 15.0) internal successors, (135), 10 states have internal predecessors, (135), 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 04:42:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:52,585 INFO L93 Difference]: Finished difference Result 4759 states and 6161 transitions. [2024-11-28 04:42:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:42:52,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.0) internal successors, (135), 10 states have internal predecessors, (135), 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 199 [2024-11-28 04:42:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:52,592 INFO L225 Difference]: With dead ends: 4759 [2024-11-28 04:42:52,592 INFO L226 Difference]: Without dead ends: 4757 [2024-11-28 04:42:52,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:42:52,594 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 121 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:52,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1027 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:42:52,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2024-11-28 04:42:53,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4680. [2024-11-28 04:42:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4230 states have (on average 1.2382978723404254) internal successors, (5238), 4260 states have internal predecessors, (5238), 414 states have call successors, (414), 6 states have call predecessors, (414), 6 states have return successors, (414), 413 states have call predecessors, (414), 414 states have call successors, (414) [2024-11-28 04:42:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 6066 transitions. [2024-11-28 04:42:53,248 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 6066 transitions. Word has length 199 [2024-11-28 04:42:53,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:53,248 INFO L471 AbstractCegarLoop]: Abstraction has 4680 states and 6066 transitions. [2024-11-28 04:42:53,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.0) internal successors, (135), 10 states have internal predecessors, (135), 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 04:42:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 6066 transitions. [2024-11-28 04:42:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:53,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:53,250 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:53,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:53,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:53,451 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:53,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash -623629358, now seen corresponding path program 13 times [2024-11-28 04:42:53,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:53,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109115513] [2024-11-28 04:42:53,451 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:42:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:42:53,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364842638] [2024-11-28 04:42:53,465 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:42:53,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:53,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:53,471 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:53,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-28 04:42:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:53,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:42:53,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:54,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:55,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109115513] [2024-11-28 04:42:55,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:55,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364842638] [2024-11-28 04:42:55,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364842638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:55,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:55,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:42:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754866073] [2024-11-28 04:42:55,041 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:55,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:42:55,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:55,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:42:55,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:42:55,041 INFO L87 Difference]: Start difference. First operand 4680 states and 6066 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 04:42:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:56,771 INFO L93 Difference]: Finished difference Result 4746 states and 6141 transitions. [2024-11-28 04:42:56,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:42:56,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 199 [2024-11-28 04:42:56,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:56,777 INFO L225 Difference]: With dead ends: 4746 [2024-11-28 04:42:56,777 INFO L226 Difference]: Without dead ends: 4744 [2024-11-28 04:42:56,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:42:56,778 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 130 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:56,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 620 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:42:56,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2024-11-28 04:42:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 4680. [2024-11-28 04:42:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4230 states have (on average 1.2380614657210403) internal successors, (5237), 4260 states have internal predecessors, (5237), 414 states have call successors, (414), 6 states have call predecessors, (414), 6 states have return successors, (414), 413 states have call predecessors, (414), 414 states have call successors, (414) [2024-11-28 04:42:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 6065 transitions. [2024-11-28 04:42:57,483 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 6065 transitions. Word has length 199 [2024-11-28 04:42:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:57,484 INFO L471 AbstractCegarLoop]: Abstraction has 4680 states and 6065 transitions. [2024-11-28 04:42:57,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 04:42:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 6065 transitions. [2024-11-28 04:42:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:42:57,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:57,485 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:57,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2024-11-28 04:42:57,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2024-11-28 04:42:57,685 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:42:57,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash -802330762, now seen corresponding path program 14 times [2024-11-28 04:42:57,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:57,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614175171] [2024-11-28 04:42:57,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:42:57,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:57,698 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:42:57,699 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:42:57,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837717250] [2024-11-28 04:42:57,699 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:42:57,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:57,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:57,701 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:57,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-28 04:42:57,771 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:42:57,771 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:42:57,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:42:57,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 87 proven. 117 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:42:59,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614175171] [2024-11-28 04:43:00,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:43:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837717250] [2024-11-28 04:43:00,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837717250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:00,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:00,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:43:00,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138903489] [2024-11-28 04:43:00,017 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:43:00,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:43:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:00,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:43:00,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:43:00,018 INFO L87 Difference]: Start difference. First operand 4680 states and 6065 transitions. Second operand has 15 states, 14 states have (on average 9.642857142857142) internal successors, (135), 15 states have internal predecessors, (135), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:43:03,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:03,925 INFO L93 Difference]: Finished difference Result 4772 states and 6177 transitions. [2024-11-28 04:43:03,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:43:03,926 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.642857142857142) internal successors, (135), 15 states have internal predecessors, (135), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 199 [2024-11-28 04:43:03,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:03,930 INFO L225 Difference]: With dead ends: 4772 [2024-11-28 04:43:03,931 INFO L226 Difference]: Without dead ends: 4770 [2024-11-28 04:43:03,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:43:03,932 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 170 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 3134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:03,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 816 Invalid, 3143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3134 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:43:03,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2024-11-28 04:43:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 4680. [2024-11-28 04:43:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4230 states have (on average 1.2375886524822695) internal successors, (5235), 4260 states have internal predecessors, (5235), 414 states have call successors, (414), 6 states have call predecessors, (414), 6 states have return successors, (414), 413 states have call predecessors, (414), 414 states have call successors, (414) [2024-11-28 04:43:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 6063 transitions. [2024-11-28 04:43:04,581 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 6063 transitions. Word has length 199 [2024-11-28 04:43:04,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:04,582 INFO L471 AbstractCegarLoop]: Abstraction has 4680 states and 6063 transitions. [2024-11-28 04:43:04,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.642857142857142) internal successors, (135), 15 states have internal predecessors, (135), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:43:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 6063 transitions. [2024-11-28 04:43:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:43:04,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:04,583 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:04,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-11-28 04:43:04,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:04,783 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:43:04,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1224310446, now seen corresponding path program 15 times [2024-11-28 04:43:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:04,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688191288] [2024-11-28 04:43:04,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:43:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:04,798 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:43:04,798 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:43:04,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240494141] [2024-11-28 04:43:04,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:43:04,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:04,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:04,804 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:04,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-11-28 04:43:04,866 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:43:04,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:43:04,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:43:04,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-28 04:43:05,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:05,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:05,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688191288] [2024-11-28 04:43:05,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:43:05,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240494141] [2024-11-28 04:43:05,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240494141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:05,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:05,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:43:05,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567454533] [2024-11-28 04:43:05,582 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:43:05,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:43:05,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:05,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:43:05,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:43:05,583 INFO L87 Difference]: Start difference. First operand 4680 states and 6063 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:43:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:06,886 INFO L93 Difference]: Finished difference Result 4840 states and 6253 transitions. [2024-11-28 04:43:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:43:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 199 [2024-11-28 04:43:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:06,892 INFO L225 Difference]: With dead ends: 4840 [2024-11-28 04:43:06,892 INFO L226 Difference]: Without dead ends: 4838 [2024-11-28 04:43:06,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:43:06,893 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 107 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:06,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 365 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:43:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2024-11-28 04:43:07,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4688. [2024-11-28 04:43:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4237 states have (on average 1.2353080009440642) internal successors, (5234), 4267 states have internal predecessors, (5234), 415 states have call successors, (415), 6 states have call predecessors, (415), 6 states have return successors, (415), 414 states have call predecessors, (415), 415 states have call successors, (415) [2024-11-28 04:43:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 6064 transitions. [2024-11-28 04:43:07,605 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 6064 transitions. Word has length 199 [2024-11-28 04:43:07,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:07,605 INFO L471 AbstractCegarLoop]: Abstraction has 4688 states and 6064 transitions. [2024-11-28 04:43:07,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:43:07,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 6064 transitions. [2024-11-28 04:43:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:43:07,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:07,608 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:07,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2024-11-28 04:43:07,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:07,808 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:43:07,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash -903430746, now seen corresponding path program 7 times [2024-11-28 04:43:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:07,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113398341] [2024-11-28 04:43:07,809 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:43:07,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:43:07,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95717347] [2024-11-28 04:43:07,830 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:43:07,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:07,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:07,838 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:07,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-28 04:43:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:07,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:43:07,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:43:08,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:09,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:09,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113398341] [2024-11-28 04:43:09,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:43:09,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95717347] [2024-11-28 04:43:09,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95717347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:09,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:09,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:43:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481360249] [2024-11-28 04:43:09,120 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:43:09,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:43:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:09,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:43:09,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:43:09,120 INFO L87 Difference]: Start difference. First operand 4688 states and 6064 transitions. Second operand has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 7 states have internal predecessors, (137), 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 04:43:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:10,534 INFO L93 Difference]: Finished difference Result 4732 states and 6117 transitions. [2024-11-28 04:43:10,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:43:10,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 7 states have internal predecessors, (137), 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 201 [2024-11-28 04:43:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:10,540 INFO L225 Difference]: With dead ends: 4732 [2024-11-28 04:43:10,540 INFO L226 Difference]: Without dead ends: 4730 [2024-11-28 04:43:10,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:43:10,542 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 69 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:10,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 413 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:43:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2024-11-28 04:43:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 4700. [2024-11-28 04:43:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4247 states have (on average 1.2352248646103132) internal successors, (5246), 4278 states have internal predecessors, (5246), 417 states have call successors, (417), 6 states have call predecessors, (417), 6 states have return successors, (417), 415 states have call predecessors, (417), 417 states have call successors, (417) [2024-11-28 04:43:11,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6080 transitions. [2024-11-28 04:43:11,429 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6080 transitions. Word has length 201 [2024-11-28 04:43:11,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:11,429 INFO L471 AbstractCegarLoop]: Abstraction has 4700 states and 6080 transitions. [2024-11-28 04:43:11,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 7 states have internal predecessors, (137), 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 04:43:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6080 transitions. [2024-11-28 04:43:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:43:11,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:11,431 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:11,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2024-11-28 04:43:11,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2024-11-28 04:43:11,631 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:43:11,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:11,632 INFO L85 PathProgramCache]: Analyzing trace with hash -836788150, now seen corresponding path program 8 times [2024-11-28 04:43:11,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:11,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961263831] [2024-11-28 04:43:11,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:43:11,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:11,648 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:43:11,648 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:43:11,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680394491] [2024-11-28 04:43:11,650 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:43:11,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:11,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:11,653 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:11,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-11-28 04:43:11,730 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:43:11,730 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:43:11,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:43:11,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:43:12,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:43:14,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:14,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961263831] [2024-11-28 04:43:14,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:43:14,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680394491] [2024-11-28 04:43:14,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680394491] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:43:14,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:43:14,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2024-11-28 04:43:14,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702940967] [2024-11-28 04:43:14,280 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:43:14,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:43:14,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:14,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:43:14,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:43:14,281 INFO L87 Difference]: Start difference. First operand 4700 states and 6080 transitions. Second operand has 17 states, 16 states have (on average 16.625) internal successors, (266), 17 states have internal predecessors, (266), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 04:43:19,164 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 04:43:21,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:43:26,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:43:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:36,308 INFO L93 Difference]: Finished difference Result 4957 states and 6411 transitions. [2024-11-28 04:43:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:43:36,308 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 16.625) internal successors, (266), 17 states have internal predecessors, (266), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 201 [2024-11-28 04:43:36,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:36,313 INFO L225 Difference]: With dead ends: 4957 [2024-11-28 04:43:36,313 INFO L226 Difference]: Without dead ends: 4955 [2024-11-28 04:43:36,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=262, Invalid=730, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:43:36,314 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 669 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:36,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1127 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2375 Invalid, 1 Unknown, 0 Unchecked, 19.3s Time] [2024-11-28 04:43:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2024-11-28 04:43:36,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4794. [2024-11-28 04:43:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4794 states, 4331 states have (on average 1.2345878549988456) internal successors, (5347), 4362 states have internal predecessors, (5347), 427 states have call successors, (427), 6 states have call predecessors, (427), 6 states have return successors, (427), 425 states have call predecessors, (427), 427 states have call successors, (427) [2024-11-28 04:43:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4794 states to 4794 states and 6201 transitions. [2024-11-28 04:43:36,985 INFO L78 Accepts]: Start accepts. Automaton has 4794 states and 6201 transitions. Word has length 201 [2024-11-28 04:43:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:36,986 INFO L471 AbstractCegarLoop]: Abstraction has 4794 states and 6201 transitions. [2024-11-28 04:43:36,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 16.625) internal successors, (266), 17 states have internal predecessors, (266), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 04:43:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4794 states and 6201 transitions. [2024-11-28 04:43:36,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:43:36,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:36,987 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:36,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2024-11-28 04:43:37,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-11-28 04:43:37,187 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:43:37,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:37,188 INFO L85 PathProgramCache]: Analyzing trace with hash 198405720, now seen corresponding path program 9 times [2024-11-28 04:43:37,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:37,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659715734] [2024-11-28 04:43:37,188 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:43:37,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:37,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:43:37,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:43:37,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201730829] [2024-11-28 04:43:37,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:43:37,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:37,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:37,206 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:37,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-11-28 04:43:37,304 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:43:37,304 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:43:37,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:43:37,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 27 proven. 191 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-28 04:44:00,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659715734] [2024-11-28 04:44:22,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:44:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201730829] [2024-11-28 04:44:22,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201730829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:22,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:44:22,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:44:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777085454] [2024-11-28 04:44:22,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:44:22,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:44:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:22,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:44:22,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=342, Unknown=2, NotChecked=0, Total=420 [2024-11-28 04:44:22,547 INFO L87 Difference]: Start difference. First operand 4794 states and 6201 transitions. Second operand has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:44:25,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:27,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:32,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:35,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:36,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:38,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:39,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:41,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:45,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:48,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:51,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:54,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:44:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:55,040 INFO L93 Difference]: Finished difference Result 4866 states and 6287 transitions. [2024-11-28 04:44:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:44:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 201 [2024-11-28 04:44:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:55,046 INFO L225 Difference]: With dead ends: 4866 [2024-11-28 04:44:55,046 INFO L226 Difference]: Without dead ends: 4864 [2024-11-28 04:44:55,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=111, Invalid=439, Unknown=2, NotChecked=0, Total=552 [2024-11-28 04:44:55,047 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 183 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:55,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1250 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 31.6s Time] [2024-11-28 04:44:55,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2024-11-28 04:44:55,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 4794. [2024-11-28 04:44:55,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4794 states, 4331 states have (on average 1.234356961440776) internal successors, (5346), 4362 states have internal predecessors, (5346), 427 states have call successors, (427), 6 states have call predecessors, (427), 6 states have return successors, (427), 425 states have call predecessors, (427), 427 states have call successors, (427) [2024-11-28 04:44:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4794 states to 4794 states and 6200 transitions. [2024-11-28 04:44:55,990 INFO L78 Accepts]: Start accepts. Automaton has 4794 states and 6200 transitions. Word has length 201 [2024-11-28 04:44:55,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:55,990 INFO L471 AbstractCegarLoop]: Abstraction has 4794 states and 6200 transitions. [2024-11-28 04:44:55,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:44:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4794 states and 6200 transitions. [2024-11-28 04:44:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:44:55,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:55,992 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:55,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2024-11-28 04:44:56,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-11-28 04:44:56,193 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:44:56,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:56,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1878328076, now seen corresponding path program 10 times [2024-11-28 04:44:56,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:56,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253727194] [2024-11-28 04:44:56,194 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:44:56,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:56,217 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:44:56,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:44:56,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853649744] [2024-11-28 04:44:56,218 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:44:56,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:56,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:56,223 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:44:56,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-11-28 04:44:56,370 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:44:56,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:44:56,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:44:56,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:44:57,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:44:58,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:58,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253727194] [2024-11-28 04:44:58,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:44:58,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853649744] [2024-11-28 04:44:58,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853649744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:44:58,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:44:58,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-28 04:44:58,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15016903] [2024-11-28 04:44:58,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:44:58,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:44:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:58,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:44:58,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:44:58,569 INFO L87 Difference]: Start difference. First operand 4794 states and 6200 transitions. Second operand has 13 states, 12 states have (on average 22.166666666666668) internal successors, (266), 13 states have internal predecessors, (266), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 04:45:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:05,857 INFO L93 Difference]: Finished difference Result 5057 states and 6524 transitions. [2024-11-28 04:45:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:45:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 22.166666666666668) internal successors, (266), 13 states have internal predecessors, (266), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 201 [2024-11-28 04:45:05,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:05,861 INFO L225 Difference]: With dead ends: 5057 [2024-11-28 04:45:05,862 INFO L226 Difference]: Without dead ends: 5055 [2024-11-28 04:45:05,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:45:05,862 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 391 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:05,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 905 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 04:45:05,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5055 states. [2024-11-28 04:45:06,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5055 to 4822. [2024-11-28 04:45:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4357 states have (on average 1.2324994262106954) internal successors, (5370), 4388 states have internal predecessors, (5370), 429 states have call successors, (429), 6 states have call predecessors, (429), 6 states have return successors, (429), 427 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-28 04:45:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 6228 transitions. [2024-11-28 04:45:06,582 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 6228 transitions. Word has length 201 [2024-11-28 04:45:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:06,582 INFO L471 AbstractCegarLoop]: Abstraction has 4822 states and 6228 transitions. [2024-11-28 04:45:06,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 22.166666666666668) internal successors, (266), 13 states have internal predecessors, (266), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 04:45:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 6228 transitions. [2024-11-28 04:45:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:45:06,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:06,583 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:06,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2024-11-28 04:45:06,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-11-28 04:45:06,784 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:45:06,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:06,784 INFO L85 PathProgramCache]: Analyzing trace with hash 952416294, now seen corresponding path program 11 times [2024-11-28 04:45:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:06,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775446446] [2024-11-28 04:45:06,784 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:45:06,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:06,803 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:45:06,803 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:45:06,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929387172] [2024-11-28 04:45:06,804 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:45:06,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:06,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:06,805 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:06,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-11-28 04:45:06,948 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:45:06,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:06,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:45:06,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:08,003 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 6 proven. 233 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:45:08,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:08,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:08,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775446446] [2024-11-28 04:45:08,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:45:08,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929387172] [2024-11-28 04:45:08,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929387172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:08,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:08,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:45:08,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656173060] [2024-11-28 04:45:08,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:08,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:45:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:08,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:45:08,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:45:08,285 INFO L87 Difference]: Start difference. First operand 4822 states and 6228 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:45:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:10,039 INFO L93 Difference]: Finished difference Result 4862 states and 6277 transitions. [2024-11-28 04:45:10,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:45:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 201 [2024-11-28 04:45:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:10,045 INFO L225 Difference]: With dead ends: 4862 [2024-11-28 04:45:10,045 INFO L226 Difference]: Without dead ends: 4860 [2024-11-28 04:45:10,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:45:10,046 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 63 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:10,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 798 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:45:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4860 states. [2024-11-28 04:45:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4860 to 4822. [2024-11-28 04:45:10,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4357 states have (on average 1.2322699104888686) internal successors, (5369), 4388 states have internal predecessors, (5369), 429 states have call successors, (429), 6 states have call predecessors, (429), 6 states have return successors, (429), 427 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-28 04:45:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 6227 transitions. [2024-11-28 04:45:10,776 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 6227 transitions. Word has length 201 [2024-11-28 04:45:10,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:10,776 INFO L471 AbstractCegarLoop]: Abstraction has 4822 states and 6227 transitions. [2024-11-28 04:45:10,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:45:10,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 6227 transitions. [2024-11-28 04:45:10,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:45:10,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:10,778 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:10,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:10,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-11-28 04:45:10,978 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:45:10,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1987610164, now seen corresponding path program 12 times [2024-11-28 04:45:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:10,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073952008] [2024-11-28 04:45:10,979 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:45:10,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:10,997 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:45:10,997 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:45:10,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738433201] [2024-11-28 04:45:10,998 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:45:10,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:10,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:10,999 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:11,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-11-28 04:45:11,236 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:45:11,236 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:11,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:45:11,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:45:12,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:12,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:12,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073952008] [2024-11-28 04:45:12,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:45:12,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738433201] [2024-11-28 04:45:12,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738433201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:12,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:12,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:45:12,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091160175] [2024-11-28 04:45:12,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:12,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:45:12,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:12,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:45:12,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:45:12,429 INFO L87 Difference]: Start difference. First operand 4822 states and 6227 transitions. Second operand has 8 states, 7 states have (on average 19.571428571428573) internal successors, (137), 8 states have internal predecessors, (137), 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 04:45:13,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:13,824 INFO L93 Difference]: Finished difference Result 4878 states and 6293 transitions. [2024-11-28 04:45:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:13,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.571428571428573) internal successors, (137), 8 states have internal predecessors, (137), 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 201 [2024-11-28 04:45:13,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:13,829 INFO L225 Difference]: With dead ends: 4878 [2024-11-28 04:45:13,829 INFO L226 Difference]: Without dead ends: 4876 [2024-11-28 04:45:13,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:45:13,831 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 80 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:13,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 512 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:45:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2024-11-28 04:45:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 4816. [2024-11-28 04:45:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4352 states have (on average 1.232077205882353) internal successors, (5362), 4383 states have internal predecessors, (5362), 428 states have call successors, (428), 6 states have call predecessors, (428), 6 states have return successors, (428), 426 states have call predecessors, (428), 428 states have call successors, (428) [2024-11-28 04:45:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6218 transitions. [2024-11-28 04:45:14,502 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6218 transitions. Word has length 201 [2024-11-28 04:45:14,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:14,502 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 6218 transitions. [2024-11-28 04:45:14,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.571428571428573) internal successors, (137), 8 states have internal predecessors, (137), 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 04:45:14,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6218 transitions. [2024-11-28 04:45:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:45:14,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:14,503 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:14,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2024-11-28 04:45:14,703 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:45:14,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 258702260, now seen corresponding path program 13 times [2024-11-28 04:45:14,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:14,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554735457] [2024-11-28 04:45:14,704 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:45:14,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:45:14,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360467267] [2024-11-28 04:45:14,717 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:45:14,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:14,718 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:14,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-11-28 04:45:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:14,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:45:14,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:15,840 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 04:45:15,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:16,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:16,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554735457] [2024-11-28 04:45:16,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:45:16,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360467267] [2024-11-28 04:45:16,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360467267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:16,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:16,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:45:16,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213479276] [2024-11-28 04:45:16,256 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:16,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:45:16,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:16,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:45:16,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:45:16,257 INFO L87 Difference]: Start difference. First operand 4816 states and 6218 transitions. Second operand has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 7 states have internal predecessors, (137), 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 04:45:17,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:17,687 INFO L93 Difference]: Finished difference Result 4870 states and 6280 transitions. [2024-11-28 04:45:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:45:17,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 7 states have internal predecessors, (137), 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 201 [2024-11-28 04:45:17,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:17,693 INFO L225 Difference]: With dead ends: 4870 [2024-11-28 04:45:17,693 INFO L226 Difference]: Without dead ends: 4868 [2024-11-28 04:45:17,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:45:17,695 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 78 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:17,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 477 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:45:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2024-11-28 04:45:18,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4816. [2024-11-28 04:45:18,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4352 states have (on average 1.2318474264705883) internal successors, (5361), 4383 states have internal predecessors, (5361), 428 states have call successors, (428), 6 states have call predecessors, (428), 6 states have return successors, (428), 426 states have call predecessors, (428), 428 states have call successors, (428) [2024-11-28 04:45:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6217 transitions. [2024-11-28 04:45:18,431 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6217 transitions. Word has length 201 [2024-11-28 04:45:18,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:18,432 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 6217 transitions. [2024-11-28 04:45:18,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 7 states have internal predecessors, (137), 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 04:45:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6217 transitions. [2024-11-28 04:45:18,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 04:45:18,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:18,433 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 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, 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 04:45:18,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2024-11-28 04:45:18,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2024-11-28 04:45:18,633 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:45:18,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:18,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1889694813, now seen corresponding path program 1 times [2024-11-28 04:45:18,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:18,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745467522] [2024-11-28 04:45:18,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:18,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:45:18,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:18,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745467522] [2024-11-28 04:45:18,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745467522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:18,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364049970] [2024-11-28 04:45:18,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:18,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:18,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:18,851 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:18,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-11-28 04:45:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:18,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:45:18,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 48 proven. 406 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:45:19,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:45:19,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364049970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:19,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:19,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2024-11-28 04:45:19,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573524787] [2024-11-28 04:45:19,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:19,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:45:19,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:19,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:45:19,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:45:19,596 INFO L87 Difference]: Start difference. First operand 4816 states and 6217 transitions. Second operand has 22 states, 22 states have (on average 12.863636363636363) internal successors, (283), 22 states have internal predecessors, (283), 11 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 11 states have call predecessors, (44), 11 states have call successors, (44) [2024-11-28 04:45:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:21,817 INFO L93 Difference]: Finished difference Result 11718 states and 15320 transitions. [2024-11-28 04:45:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:45:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 12.863636363636363) internal successors, (283), 22 states have internal predecessors, (283), 11 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 11 states have call predecessors, (44), 11 states have call successors, (44) Word has length 207 [2024-11-28 04:45:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:21,829 INFO L225 Difference]: With dead ends: 11718 [2024-11-28 04:45:21,829 INFO L226 Difference]: Without dead ends: 11323 [2024-11-28 04:45:21,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:45:21,831 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 605 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:21,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1050 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:45:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11323 states. [2024-11-28 04:45:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11323 to 11185. [2024-11-28 04:45:23,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 10193 states have (on average 1.232806828215442) internal successors, (12566), 10235 states have internal predecessors, (12566), 950 states have call successors, (950), 12 states have call predecessors, (950), 12 states have return successors, (950), 937 states have call predecessors, (950), 950 states have call successors, (950) [2024-11-28 04:45:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 14466 transitions. [2024-11-28 04:45:23,857 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 14466 transitions. Word has length 207 [2024-11-28 04:45:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:23,858 INFO L471 AbstractCegarLoop]: Abstraction has 11185 states and 14466 transitions. [2024-11-28 04:45:23,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.863636363636363) internal successors, (283), 22 states have internal predecessors, (283), 11 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 11 states have call predecessors, (44), 11 states have call successors, (44) [2024-11-28 04:45:23,858 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 14466 transitions. [2024-11-28 04:45:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 04:45:23,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:23,859 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:23,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2024-11-28 04:45:24,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-11-28 04:45:24,059 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:45:24,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:24,060 INFO L85 PathProgramCache]: Analyzing trace with hash -550274710, now seen corresponding path program 2 times [2024-11-28 04:45:24,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:24,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750799524] [2024-11-28 04:45:24,060 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:24,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:24,071 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:24,071 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:45:24,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103840063] [2024-11-28 04:45:24,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:24,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:24,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:24,073 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:24,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2024-11-28 04:45:24,147 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:24,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:24,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:45:24,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:45:25,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:25,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:25,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750799524] [2024-11-28 04:45:25,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:45:25,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103840063] [2024-11-28 04:45:25,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103840063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:25,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:25,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:45:25,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480781899] [2024-11-28 04:45:25,718 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:25,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:45:25,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:25,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:45:25,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:45:25,719 INFO L87 Difference]: Start difference. First operand 11185 states and 14466 transitions. Second operand has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:45:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:28,571 INFO L93 Difference]: Finished difference Result 11749 states and 15198 transitions. [2024-11-28 04:45:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:45:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 209 [2024-11-28 04:45:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:28,586 INFO L225 Difference]: With dead ends: 11749 [2024-11-28 04:45:28,586 INFO L226 Difference]: Without dead ends: 11747 [2024-11-28 04:45:28,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:45:28,589 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 221 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:28,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 493 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:45:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11747 states. [2024-11-28 04:45:30,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11747 to 11152. [2024-11-28 04:45:30,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11152 states, 10163 states have (on average 1.2323132933189018) internal successors, (12524), 10205 states have internal predecessors, (12524), 947 states have call successors, (947), 12 states have call predecessors, (947), 12 states have return successors, (947), 934 states have call predecessors, (947), 947 states have call successors, (947) [2024-11-28 04:45:30,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11152 states to 11152 states and 14418 transitions. [2024-11-28 04:45:30,385 INFO L78 Accepts]: Start accepts. Automaton has 11152 states and 14418 transitions. Word has length 209 [2024-11-28 04:45:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:30,386 INFO L471 AbstractCegarLoop]: Abstraction has 11152 states and 14418 transitions. [2024-11-28 04:45:30,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:45:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 11152 states and 14418 transitions. [2024-11-28 04:45:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 04:45:30,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:30,387 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:30,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2024-11-28 04:45:30,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-11-28 04:45:30,588 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 04:45:30,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:30,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1705047366, now seen corresponding path program 3 times [2024-11-28 04:45:30,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:30,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766460450] [2024-11-28 04:45:30,588 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:45:30,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:30,605 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:45:30,605 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:45:30,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865959552] [2024-11-28 04:45:30,606 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:45:30,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:30,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:30,608 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:30,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5388f56b-5c07-4c7d-9533-f59add7bc210/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2024-11-28 04:45:30,814 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:45:30,814 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:30,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:45:30,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 81 proven. 207 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-28 04:45:42,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:44,670 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:48:49,405 WARN L286 SmtUtils]: Spent 6.58s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)