./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3e4caaff40cd418d8c93f0410c37d1e421cc5f90c41578bfaa7bb16ff289f1e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:57:51,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:57:51,997 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:57:52,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:57:52,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:57:52,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:57:52,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:57:52,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:57:52,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:57:52,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:57:52,036 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:57:52,037 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:57:52,037 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:57:52,038 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:57:52,038 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:57:52,039 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:57:52,039 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:57:52,040 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:57:52,040 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:57:52,041 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:57:52,041 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:57:52,045 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:57:52,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:57:52,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:57:52,047 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:57:52,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:57:52,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:57:52,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:57:52,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:57:52,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:57:52,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:57:52,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:57:52,054 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:57:52,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:57:52,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:57:52,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:57:52,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:57:52,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:57:52,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:57:52,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:57:52,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:57:52,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:57:52,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:57:52,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:57:52,062 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:57:52,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:57:52,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:57:52,063 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:57:52,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:57:52,064 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3e4caaff40cd418d8c93f0410c37d1e421cc5f90c41578bfaa7bb16ff289f1e [2024-11-09 05:57:52,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:57:52,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:57:52,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:57:52,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:57:52,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:57:52,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound100.c Unable to find full path for "g++" [2024-11-09 05:57:54,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:57:55,073 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:57:55,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound100.c [2024-11-09 05:57:55,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/data/ed3568faf/8eaae677f31c4483ac50ee31e64950af/FLAG5f1013f28 [2024-11-09 05:57:55,352 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/data/ed3568faf/8eaae677f31c4483ac50ee31e64950af [2024-11-09 05:57:55,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:57:55,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:57:55,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:57:55,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:57:55,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:57:55,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156004fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55, skipping insertion in model container [2024-11-09 05:57:55,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,408 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:57:55,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:57:55,666 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:57:55,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:57:55,727 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:57:55,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55 WrapperNode [2024-11-09 05:57:55,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:57:55,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:57:55,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:57:55,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:57:55,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,791 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-11-09 05:57:55,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:57:55,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:57:55,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:57:55,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:57:55,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:57:55,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:57:55,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:57:55,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:57:55,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (1/1) ... [2024-11-09 05:57:55,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:57:55,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:57:55,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:57:55,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:57:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:57:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:57:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:57:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:57:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:57:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:57:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:57:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:57:56,019 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:57:56,022 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:57:56,909 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-09 05:57:56,912 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:57:56,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:57:56,977 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 05:57:56,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:57:56 BoogieIcfgContainer [2024-11-09 05:57:56,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:57:56,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:57:56,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:57:56,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:57:56,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:57:55" (1/3) ... [2024-11-09 05:57:56,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65586eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:57:56, skipping insertion in model container [2024-11-09 05:57:56,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:55" (2/3) ... [2024-11-09 05:57:56,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65586eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:57:56, skipping insertion in model container [2024-11-09 05:57:56,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:57:56" (3/3) ... [2024-11-09 05:57:56,994 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound100.c [2024-11-09 05:57:57,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:57:57,017 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-11-09 05:57:57,123 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:57:57,131 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=FINITE_AUTOMATA, 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;@a7f5366, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:57:57,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 05:57:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 113 states have internal predecessors, (119), 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) [2024-11-09 05:57:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:57:57,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:57,148 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:57,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:57:57,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1144753570, now seen corresponding path program 1 times [2024-11-09 05:57:57,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:57,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657760220] [2024-11-09 05:57:57,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:57,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:57:57,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:57,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657760220] [2024-11-09 05:57:57,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657760220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:57,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:57:57,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:57:57,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924389495] [2024-11-09 05:57:57,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:57,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:57:57,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:57,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:57:57,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:57:57,461 INFO L87 Difference]: Start difference. First operand has 125 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 113 states have internal predecessors, (119), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:57,535 INFO L93 Difference]: Finished difference Result 241 states and 262 transitions. [2024-11-09 05:57:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:57:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 17 [2024-11-09 05:57:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:57,550 INFO L225 Difference]: With dead ends: 241 [2024-11-09 05:57:57,551 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 05:57:57,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:57:57,562 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:57,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:57:57,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 05:57:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-09 05:57:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 62 states have (on average 1.8387096774193548) internal successors, (114), 111 states have internal predecessors, (114), 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) [2024-11-09 05:57:57,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 130 transitions. [2024-11-09 05:57:57,643 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 130 transitions. Word has length 17 [2024-11-09 05:57:57,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:57,646 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 130 transitions. [2024-11-09 05:57:57,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2024-11-09 05:57:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 05:57:57,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:57,651 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:57,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:57:57,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:57:57,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1127819855, now seen corresponding path program 1 times [2024-11-09 05:57:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:57,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309520868] [2024-11-09 05:57:57,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:57,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:57:57,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:57,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309520868] [2024-11-09 05:57:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309520868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:57,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:57:57,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:57:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728125715] [2024-11-09 05:57:57,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:57,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:57:57,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:57,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:57:57,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:57:57,957 INFO L87 Difference]: Start difference. First operand 122 states and 130 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:58,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:58,415 INFO L93 Difference]: Finished difference Result 211 states and 231 transitions. [2024-11-09 05:57:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:57:58,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 18 [2024-11-09 05:57:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:58,418 INFO L225 Difference]: With dead ends: 211 [2024-11-09 05:57:58,419 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:57:58,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:57:58,421 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 208 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:58,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 228 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:57:58,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:57:58,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 124. [2024-11-09 05:57:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 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) [2024-11-09 05:57:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2024-11-09 05:57:58,456 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 18 [2024-11-09 05:57:58,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:58,457 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2024-11-09 05:57:58,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:58,457 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2024-11-09 05:57:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:57:58,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:58,459 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:58,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:57:58,460 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:57:58,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash 646609691, now seen corresponding path program 1 times [2024-11-09 05:57:58,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:58,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408065937] [2024-11-09 05:57:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:57:58,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495001304] [2024-11-09 05:57:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:58,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:58,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:57:58,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:57:58,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:57:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:58,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:57:58,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:57:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:57:58,639 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:57:58,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:58,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408065937] [2024-11-09 05:57:58,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:57:58,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495001304] [2024-11-09 05:57:58,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495001304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:58,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:57:58,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:57:58,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607030074] [2024-11-09 05:57:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:58,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:57:58,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:57:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:57:58,648 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:59,038 INFO L93 Difference]: Finished difference Result 193 states and 211 transitions. [2024-11-09 05:57:59,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:57:59,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-09 05:57:59,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:59,041 INFO L225 Difference]: With dead ends: 193 [2024-11-09 05:57:59,041 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 05:57:59,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:57:59,043 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:59,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 208 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:57:59,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 05:57:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 163. [2024-11-09 05:57:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.8080808080808082) internal successors, (179), 148 states have internal predecessors, (179), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:57:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 203 transitions. [2024-11-09 05:57:59,079 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 203 transitions. Word has length 21 [2024-11-09 05:57:59,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:59,080 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 203 transitions. [2024-11-09 05:57:59,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 203 transitions. [2024-11-09 05:57:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:57:59,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:59,081 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:59,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:57:59,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:59,283 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:57:59,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:59,283 INFO L85 PathProgramCache]: Analyzing trace with hash 646609309, now seen corresponding path program 1 times [2024-11-09 05:57:59,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:59,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359764960] [2024-11-09 05:57:59,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:59,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:57:59,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581301471] [2024-11-09 05:57:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:59,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:59,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:57:59,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:57:59,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:57:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:59,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:57:59,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:57:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:57:59,392 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:57:59,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:59,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359764960] [2024-11-09 05:57:59,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:57:59,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581301471] [2024-11-09 05:57:59,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581301471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:59,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:57:59,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:57:59,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722107927] [2024-11-09 05:57:59,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:59,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:57:59,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:57:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:57:59,395 INFO L87 Difference]: Start difference. First operand 163 states and 203 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:59,592 INFO L93 Difference]: Finished difference Result 191 states and 207 transitions. [2024-11-09 05:57:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:57:59,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-09 05:57:59,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:59,605 INFO L225 Difference]: With dead ends: 191 [2024-11-09 05:57:59,606 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 05:57:59,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:57:59,607 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 59 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:59,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 226 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:57:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 05:57:59,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 163. [2024-11-09 05:57:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7878787878787878) internal successors, (177), 148 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:57:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 201 transitions. [2024-11-09 05:57:59,642 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 201 transitions. Word has length 21 [2024-11-09 05:57:59,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:59,643 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 201 transitions. [2024-11-09 05:57:59,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:57:59,643 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 201 transitions. [2024-11-09 05:57:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:57:59,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:59,648 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:59,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:57:59,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:59,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:57:59,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1378340131, now seen corresponding path program 1 times [2024-11-09 05:57:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:59,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650010178] [2024-11-09 05:57:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:59,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:00,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:00,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650010178] [2024-11-09 05:58:00,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650010178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:00,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:00,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:58:00,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177432077] [2024-11-09 05:58:00,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:00,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:58:00,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:58:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:00,028 INFO L87 Difference]: Start difference. First operand 163 states and 201 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:00,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:00,894 INFO L93 Difference]: Finished difference Result 186 states and 205 transitions. [2024-11-09 05:58:00,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:58:00,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 23 [2024-11-09 05:58:00,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:00,897 INFO L225 Difference]: With dead ends: 186 [2024-11-09 05:58:00,897 INFO L226 Difference]: Without dead ends: 185 [2024-11-09 05:58:00,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:00,901 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 53 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:00,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 389 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:58:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-09 05:58:00,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 164. [2024-11-09 05:58:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.78) internal successors, (178), 149 states have internal predecessors, (178), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:58:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 202 transitions. [2024-11-09 05:58:00,926 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 202 transitions. Word has length 23 [2024-11-09 05:58:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:00,926 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 202 transitions. [2024-11-09 05:58:00,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 202 transitions. [2024-11-09 05:58:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:58:00,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:00,928 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:00,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:58:00,929 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:00,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1378709537, now seen corresponding path program 1 times [2024-11-09 05:58:00,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:00,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466591563] [2024-11-09 05:58:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:00,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:00,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448348538] [2024-11-09 05:58:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:00,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:00,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:00,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:00,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:58:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:01,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:58:01,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:01,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:01,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:01,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466591563] [2024-11-09 05:58:01,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:01,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448348538] [2024-11-09 05:58:01,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448348538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:01,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:01,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113071920] [2024-11-09 05:58:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:01,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:58:01,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:01,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:58:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:01,176 INFO L87 Difference]: Start difference. First operand 164 states and 202 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:01,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:01,575 INFO L93 Difference]: Finished difference Result 183 states and 202 transitions. [2024-11-09 05:58:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:58:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 23 [2024-11-09 05:58:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:01,577 INFO L225 Difference]: With dead ends: 183 [2024-11-09 05:58:01,577 INFO L226 Difference]: Without dead ends: 182 [2024-11-09 05:58:01,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:01,579 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 139 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:01,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 180 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:58:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-09 05:58:01,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2024-11-09 05:58:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.77) internal successors, (177), 149 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:58:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2024-11-09 05:58:01,611 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 201 transitions. Word has length 23 [2024-11-09 05:58:01,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:01,612 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 201 transitions. [2024-11-09 05:58:01,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 201 transitions. [2024-11-09 05:58:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:58:01,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:01,613 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:01,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:58:01,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:58:01,814 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:01,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 221129051, now seen corresponding path program 1 times [2024-11-09 05:58:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:01,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862371125] [2024-11-09 05:58:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:01,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253465010] [2024-11-09 05:58:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:01,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:01,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:01,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:58:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:01,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:58:01,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:02,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:02,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:02,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862371125] [2024-11-09 05:58:02,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:02,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253465010] [2024-11-09 05:58:02,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253465010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:02,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:02,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:02,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884666514] [2024-11-09 05:58:02,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:02,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:58:02,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:58:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:02,016 INFO L87 Difference]: Start difference. First operand 164 states and 201 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:02,614 INFO L93 Difference]: Finished difference Result 184 states and 203 transitions. [2024-11-09 05:58:02,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:58:02,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-11-09 05:58:02,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:02,616 INFO L225 Difference]: With dead ends: 184 [2024-11-09 05:58:02,616 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:58:02,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:02,617 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 53 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:02,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 270 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:58:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:58:02,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 165. [2024-11-09 05:58:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 101 states have (on average 1.7623762376237624) internal successors, (178), 150 states have internal predecessors, (178), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:58:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 202 transitions. [2024-11-09 05:58:02,629 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 202 transitions. Word has length 24 [2024-11-09 05:58:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:02,630 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 202 transitions. [2024-11-09 05:58:02,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 202 transitions. [2024-11-09 05:58:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:58:02,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:02,631 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:02,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:58:02,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 05:58:02,836 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:02,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash 209677393, now seen corresponding path program 1 times [2024-11-09 05:58:02,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:02,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041215875] [2024-11-09 05:58:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:02,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:02,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034115161] [2024-11-09 05:58:02,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:02,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:02,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:02,854 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:02,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:58:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:02,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:58:02,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:03,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:03,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041215875] [2024-11-09 05:58:03,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034115161] [2024-11-09 05:58:03,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034115161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:03,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:03,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:03,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301945369] [2024-11-09 05:58:03,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:03,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:58:03,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:58:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:03,058 INFO L87 Difference]: Start difference. First operand 165 states and 202 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:03,371 INFO L93 Difference]: Finished difference Result 184 states and 202 transitions. [2024-11-09 05:58:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:58:03,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-11-09 05:58:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:03,373 INFO L225 Difference]: With dead ends: 184 [2024-11-09 05:58:03,373 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:58:03,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:03,375 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 138 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:03,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 180 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:58:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:58:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 165. [2024-11-09 05:58:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 101 states have (on average 1.7524752475247525) internal successors, (177), 150 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:58:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 201 transitions. [2024-11-09 05:58:03,387 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 201 transitions. Word has length 24 [2024-11-09 05:58:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:03,388 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 201 transitions. [2024-11-09 05:58:03,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 201 transitions. [2024-11-09 05:58:03,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:58:03,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:03,389 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:03,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:58:03,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:03,594 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:03,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:03,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1734933857, now seen corresponding path program 1 times [2024-11-09 05:58:03,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:03,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330211272] [2024-11-09 05:58:03,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:03,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:03,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431807009] [2024-11-09 05:58:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:03,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:03,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:03,614 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:03,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:58:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:03,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:58:03,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:03,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:03,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:03,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330211272] [2024-11-09 05:58:03,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:03,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431807009] [2024-11-09 05:58:03,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431807009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:03,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:03,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:58:03,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821474447] [2024-11-09 05:58:03,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:03,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:58:03,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:03,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:58:03,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:03,704 INFO L87 Difference]: Start difference. First operand 165 states and 201 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:03,929 INFO L93 Difference]: Finished difference Result 279 states and 357 transitions. [2024-11-09 05:58:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:58:03,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-09 05:58:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:03,933 INFO L225 Difference]: With dead ends: 279 [2024-11-09 05:58:03,933 INFO L226 Difference]: Without dead ends: 273 [2024-11-09 05:58:03,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:03,935 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 56 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:03,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 203 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:58:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-09 05:58:03,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 241. [2024-11-09 05:58:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.7100591715976332) internal successors, (289), 218 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:58:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 329 transitions. [2024-11-09 05:58:03,968 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 329 transitions. Word has length 25 [2024-11-09 05:58:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:03,969 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 329 transitions. [2024-11-09 05:58:03,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 329 transitions. [2024-11-09 05:58:03,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:58:03,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:03,970 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:03,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:58:04,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 05:58:04,171 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:04,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2089935327, now seen corresponding path program 1 times [2024-11-09 05:58:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:04,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833592931] [2024-11-09 05:58:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:04,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937193736] [2024-11-09 05:58:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:04,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:04,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:04,206 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:04,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:58:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:04,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:58:04,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:04,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:04,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:04,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833592931] [2024-11-09 05:58:04,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:04,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937193736] [2024-11-09 05:58:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937193736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:04,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622880409] [2024-11-09 05:58:04,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:04,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:58:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:58:04,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:04,336 INFO L87 Difference]: Start difference. First operand 241 states and 329 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:04,751 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2024-11-09 05:58:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:58:04,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-09 05:58:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:04,754 INFO L225 Difference]: With dead ends: 266 [2024-11-09 05:58:04,754 INFO L226 Difference]: Without dead ends: 265 [2024-11-09 05:58:04,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:04,755 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 101 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:04,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 233 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:58:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-09 05:58:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 241. [2024-11-09 05:58:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.698224852071006) internal successors, (287), 218 states have internal predecessors, (287), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:58:04,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 327 transitions. [2024-11-09 05:58:04,779 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 327 transitions. Word has length 25 [2024-11-09 05:58:04,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:04,780 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 327 transitions. [2024-11-09 05:58:04,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 327 transitions. [2024-11-09 05:58:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:58:04,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:04,781 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:04,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:58:04,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:58:04,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:04,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:04,983 INFO L85 PathProgramCache]: Analyzing trace with hash -363485613, now seen corresponding path program 1 times [2024-11-09 05:58:04,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:04,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797056277] [2024-11-09 05:58:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:04,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:05,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698781561] [2024-11-09 05:58:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:05,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:05,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:05,016 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:05,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:58:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:05,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:58:05,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:05,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:05,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:05,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797056277] [2024-11-09 05:58:05,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:05,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698781561] [2024-11-09 05:58:05,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698781561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:05,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:05,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:05,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633934190] [2024-11-09 05:58:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:05,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:58:05,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:58:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:05,290 INFO L87 Difference]: Start difference. First operand 241 states and 327 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:05,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:05,943 INFO L93 Difference]: Finished difference Result 267 states and 332 transitions. [2024-11-09 05:58:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:58:05,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-11-09 05:58:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:05,945 INFO L225 Difference]: With dead ends: 267 [2024-11-09 05:58:05,945 INFO L226 Difference]: Without dead ends: 266 [2024-11-09 05:58:05,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:05,946 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 57 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:05,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 307 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:58:05,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-09 05:58:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 241. [2024-11-09 05:58:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.6863905325443787) internal successors, (285), 218 states have internal predecessors, (285), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:58:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 325 transitions. [2024-11-09 05:58:05,963 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 325 transitions. Word has length 26 [2024-11-09 05:58:05,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:05,964 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 325 transitions. [2024-11-09 05:58:05,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 325 transitions. [2024-11-09 05:58:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:58:05,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:05,965 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:05,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:58:06,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 05:58:06,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:06,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash -824120735, now seen corresponding path program 1 times [2024-11-09 05:58:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:06,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863510178] [2024-11-09 05:58:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:06,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:06,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:06,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863510178] [2024-11-09 05:58:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863510178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:06,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:58:06,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807045738] [2024-11-09 05:58:06,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:06,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:58:06,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:06,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:58:06,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:06,422 INFO L87 Difference]: Start difference. First operand 241 states and 325 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:06,814 INFO L93 Difference]: Finished difference Result 270 states and 335 transitions. [2024-11-09 05:58:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:58:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-09 05:58:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:06,816 INFO L225 Difference]: With dead ends: 270 [2024-11-09 05:58:06,817 INFO L226 Difference]: Without dead ends: 269 [2024-11-09 05:58:06,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:06,818 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:06,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 336 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:58:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-09 05:58:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 246. [2024-11-09 05:58:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6781609195402298) internal successors, (292), 223 states have internal predecessors, (292), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:58:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 332 transitions. [2024-11-09 05:58:06,841 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 332 transitions. Word has length 27 [2024-11-09 05:58:06,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:06,841 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 332 transitions. [2024-11-09 05:58:06,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 332 transitions. [2024-11-09 05:58:06,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:58:06,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:06,843 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:06,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:58:06,843 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:06,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash 222061151, now seen corresponding path program 1 times [2024-11-09 05:58:06,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:06,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740084609] [2024-11-09 05:58:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:06,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:06,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132074486] [2024-11-09 05:58:06,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:06,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:06,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:06,874 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:06,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:58:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:06,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:58:06,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:07,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:07,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:07,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740084609] [2024-11-09 05:58:07,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:07,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132074486] [2024-11-09 05:58:07,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132074486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:07,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:07,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:58:07,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136075321] [2024-11-09 05:58:07,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:07,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:58:07,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:07,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:58:07,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:07,005 INFO L87 Difference]: Start difference. First operand 246 states and 332 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:07,319 INFO L93 Difference]: Finished difference Result 287 states and 343 transitions. [2024-11-09 05:58:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:58:07,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-11-09 05:58:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:07,321 INFO L225 Difference]: With dead ends: 287 [2024-11-09 05:58:07,321 INFO L226 Difference]: Without dead ends: 286 [2024-11-09 05:58:07,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:07,322 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 153 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:07,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 336 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:58:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-09 05:58:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 248. [2024-11-09 05:58:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 176 states have (on average 1.6704545454545454) internal successors, (294), 225 states have internal predecessors, (294), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:58:07,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 334 transitions. [2024-11-09 05:58:07,340 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 334 transitions. Word has length 28 [2024-11-09 05:58:07,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:07,340 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 334 transitions. [2024-11-09 05:58:07,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:58:07,341 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 334 transitions. [2024-11-09 05:58:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:58:07,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:07,342 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:07,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 05:58:07,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:07,542 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:07,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1174159491, now seen corresponding path program 1 times [2024-11-09 05:58:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639498101] [2024-11-09 05:58:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:58:07,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639498101] [2024-11-09 05:58:07,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639498101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158419666] [2024-11-09 05:58:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:07,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:07,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:07,699 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:07,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:58:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:07,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:58:07,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:07,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:58:08,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158419666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:58:08,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [733696120] [2024-11-09 05:58:08,110 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 05:58:08,110 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:08,113 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:08,120 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:08,120 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:58:09,090 WARN L110 ntervalStateProvider]: Interval conversion did not stabilize in 12 iterations. Over-approximation may be very coarse. [2024-11-09 05:58:09,212 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:58:09,214 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:58:11,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [733696120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:11,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:58:11,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [7, 5, 5] total 27 [2024-11-09 05:58:11,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664180722] [2024-11-09 05:58:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:11,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:58:11,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:58:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-09 05:58:11,224 INFO L87 Difference]: Start difference. First operand 248 states and 334 transitions. Second operand has 15 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:58:12,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:12,640 INFO L93 Difference]: Finished difference Result 394 states and 516 transitions. [2024-11-09 05:58:12,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:58:12,641 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2024-11-09 05:58:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:12,643 INFO L225 Difference]: With dead ends: 394 [2024-11-09 05:58:12,643 INFO L226 Difference]: Without dead ends: 348 [2024-11-09 05:58:12,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:58:12,644 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 438 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:12,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 150 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:58:12,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-09 05:58:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 318. [2024-11-09 05:58:12,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 238 states have (on average 1.5714285714285714) internal successors, (374), 287 states have internal predecessors, (374), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:58:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 430 transitions. [2024-11-09 05:58:12,693 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 430 transitions. Word has length 31 [2024-11-09 05:58:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:12,693 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 430 transitions. [2024-11-09 05:58:12,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:58:12,694 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 430 transitions. [2024-11-09 05:58:12,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:58:12,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:12,695 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:12,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:58:12,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:12,900 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:12,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:12,900 INFO L85 PathProgramCache]: Analyzing trace with hash -583317047, now seen corresponding path program 1 times [2024-11-09 05:58:12,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:12,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642536758] [2024-11-09 05:58:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:12,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86947310] [2024-11-09 05:58:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:12,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:12,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:12,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:12,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:58:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:12,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:58:12,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:13,122 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:58:13,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:13,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:13,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642536758] [2024-11-09 05:58:13,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:13,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86947310] [2024-11-09 05:58:13,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86947310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:13,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:13,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:58:13,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628766420] [2024-11-09 05:58:13,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:13,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:58:13,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:13,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:58:13,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:13,124 INFO L87 Difference]: Start difference. First operand 318 states and 430 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:58:13,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:13,631 INFO L93 Difference]: Finished difference Result 396 states and 521 transitions. [2024-11-09 05:58:13,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:58:13,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 46 [2024-11-09 05:58:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:13,636 INFO L225 Difference]: With dead ends: 396 [2024-11-09 05:58:13,637 INFO L226 Difference]: Without dead ends: 393 [2024-11-09 05:58:13,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:58:13,638 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 218 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:13,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 184 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:58:13,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-09 05:58:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 374. [2024-11-09 05:58:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 286 states have (on average 1.5174825174825175) internal successors, (434), 335 states have internal predecessors, (434), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:58:13,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 506 transitions. [2024-11-09 05:58:13,695 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 506 transitions. Word has length 46 [2024-11-09 05:58:13,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:13,695 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 506 transitions. [2024-11-09 05:58:13,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:58:13,696 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 506 transitions. [2024-11-09 05:58:13,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:58:13,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:13,698 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:13,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:58:13,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:13,899 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:13,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:13,899 INFO L85 PathProgramCache]: Analyzing trace with hash -902959162, now seen corresponding path program 1 times [2024-11-09 05:58:13,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:13,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529148951] [2024-11-09 05:58:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:13,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:13,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102725031] [2024-11-09 05:58:13,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:13,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:13,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:13,926 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:13,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:58:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:13,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:58:13,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:58:14,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:14,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:14,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529148951] [2024-11-09 05:58:14,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:14,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102725031] [2024-11-09 05:58:14,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102725031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:14,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:14,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:58:14,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663037191] [2024-11-09 05:58:14,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:14,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:58:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:14,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:58:14,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:14,131 INFO L87 Difference]: Start difference. First operand 374 states and 506 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:58:14,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:14,559 INFO L93 Difference]: Finished difference Result 394 states and 515 transitions. [2024-11-09 05:58:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:58:14,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-09 05:58:14,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:14,562 INFO L225 Difference]: With dead ends: 394 [2024-11-09 05:58:14,562 INFO L226 Difference]: Without dead ends: 393 [2024-11-09 05:58:14,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:58:14,564 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 213 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:14,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 187 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:58:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-09 05:58:14,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 374. [2024-11-09 05:58:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 286 states have (on average 1.5104895104895104) internal successors, (432), 335 states have internal predecessors, (432), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:58:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 504 transitions. [2024-11-09 05:58:14,612 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 504 transitions. Word has length 47 [2024-11-09 05:58:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:14,613 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 504 transitions. [2024-11-09 05:58:14,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:58:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 504 transitions. [2024-11-09 05:58:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:58:14,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:14,614 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:14,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 05:58:14,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 05:58:14,815 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:14,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:14,816 INFO L85 PathProgramCache]: Analyzing trace with hash 519128955, now seen corresponding path program 1 times [2024-11-09 05:58:14,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:14,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027990803] [2024-11-09 05:58:14,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:14,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:14,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:14,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027990803] [2024-11-09 05:58:14,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027990803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:14,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:14,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:58:14,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335358570] [2024-11-09 05:58:14,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:14,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:58:14,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:14,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:58:14,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:58:14,946 INFO L87 Difference]: Start difference. First operand 374 states and 504 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:58:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:15,705 INFO L93 Difference]: Finished difference Result 397 states and 517 transitions. [2024-11-09 05:58:15,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:58:15,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2024-11-09 05:58:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:15,708 INFO L225 Difference]: With dead ends: 397 [2024-11-09 05:58:15,708 INFO L226 Difference]: Without dead ends: 395 [2024-11-09 05:58:15,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:58:15,709 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 229 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:15,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 249 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:58:15,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-09 05:58:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 376. [2024-11-09 05:58:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 288 states have (on average 1.5) internal successors, (432), 337 states have internal predecessors, (432), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:58:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 504 transitions. [2024-11-09 05:58:15,761 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 504 transitions. Word has length 51 [2024-11-09 05:58:15,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:15,762 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 504 transitions. [2024-11-09 05:58:15,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:58:15,763 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 504 transitions. [2024-11-09 05:58:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:58:15,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:15,763 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:15,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:58:15,764 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:15,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1086871463, now seen corresponding path program 1 times [2024-11-09 05:58:15,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:15,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748953068] [2024-11-09 05:58:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:15,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:15,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748953068] [2024-11-09 05:58:15,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748953068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:15,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:15,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:58:15,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511067825] [2024-11-09 05:58:15,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:15,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:58:15,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:15,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:58:15,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:58:15,930 INFO L87 Difference]: Start difference. First operand 376 states and 504 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:16,620 INFO L93 Difference]: Finished difference Result 406 states and 513 transitions. [2024-11-09 05:58:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:58:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2024-11-09 05:58:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:16,623 INFO L225 Difference]: With dead ends: 406 [2024-11-09 05:58:16,624 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 05:58:16,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:58:16,625 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 316 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:16,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 384 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:58:16,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 05:58:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 376. [2024-11-09 05:58:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 288 states have (on average 1.4930555555555556) internal successors, (430), 337 states have internal predecessors, (430), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:58:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 502 transitions. [2024-11-09 05:58:16,684 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 502 transitions. Word has length 52 [2024-11-09 05:58:16,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:16,684 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 502 transitions. [2024-11-09 05:58:16,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:16,685 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 502 transitions. [2024-11-09 05:58:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:58:16,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:16,686 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:16,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 05:58:16,686 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:16,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:16,687 INFO L85 PathProgramCache]: Analyzing trace with hash -806419192, now seen corresponding path program 1 times [2024-11-09 05:58:16,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:16,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475201923] [2024-11-09 05:58:16,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:16,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:16,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:16,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475201923] [2024-11-09 05:58:16,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475201923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:16,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:16,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:58:16,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452049680] [2024-11-09 05:58:16,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:16,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:58:16,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:58:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:16,758 INFO L87 Difference]: Start difference. First operand 376 states and 502 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:16,880 INFO L93 Difference]: Finished difference Result 523 states and 723 transitions. [2024-11-09 05:58:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:58:16,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2024-11-09 05:58:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:16,883 INFO L225 Difference]: With dead ends: 523 [2024-11-09 05:58:16,883 INFO L226 Difference]: Without dead ends: 522 [2024-11-09 05:58:16,884 INFO L431 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 [2024-11-09 05:58:16,885 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 23 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:16,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 213 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:58:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-09 05:58:16,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 483. [2024-11-09 05:58:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 379 states have (on average 1.517150395778364) internal successors, (575), 428 states have internal predecessors, (575), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:16,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 679 transitions. [2024-11-09 05:58:16,951 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 679 transitions. Word has length 54 [2024-11-09 05:58:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:16,952 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 679 transitions. [2024-11-09 05:58:16,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:16,952 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 679 transitions. [2024-11-09 05:58:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:58:16,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:16,953 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:16,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 05:58:16,953 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:16,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:16,954 INFO L85 PathProgramCache]: Analyzing trace with hash 770808960, now seen corresponding path program 1 times [2024-11-09 05:58:16,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:16,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717859039] [2024-11-09 05:58:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:16,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:17,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:17,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717859039] [2024-11-09 05:58:17,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717859039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:17,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:17,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:58:17,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113173354] [2024-11-09 05:58:17,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:17,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:58:17,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:17,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:58:17,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:58:17,064 INFO L87 Difference]: Start difference. First operand 483 states and 679 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:17,657 INFO L93 Difference]: Finished difference Result 500 states and 680 transitions. [2024-11-09 05:58:17,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:58:17,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-09 05:58:17,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:17,660 INFO L225 Difference]: With dead ends: 500 [2024-11-09 05:58:17,660 INFO L226 Difference]: Without dead ends: 499 [2024-11-09 05:58:17,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:58:17,662 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 206 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:17,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 328 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:58:17,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-09 05:58:17,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 483. [2024-11-09 05:58:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 379 states have (on average 1.5145118733509235) internal successors, (574), 428 states have internal predecessors, (574), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 678 transitions. [2024-11-09 05:58:17,733 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 678 transitions. Word has length 55 [2024-11-09 05:58:17,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:17,733 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 678 transitions. [2024-11-09 05:58:17,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:17,734 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 678 transitions. [2024-11-09 05:58:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:58:17,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:17,735 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:17,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 05:58:17,735 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:17,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:17,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1874725878, now seen corresponding path program 1 times [2024-11-09 05:58:17,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:17,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008910485] [2024-11-09 05:58:17,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:17,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:17,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:17,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008910485] [2024-11-09 05:58:17,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008910485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:17,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:17,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:17,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052491698] [2024-11-09 05:58:17,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:17,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:58:17,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:58:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:17,837 INFO L87 Difference]: Start difference. First operand 483 states and 678 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:18,172 INFO L93 Difference]: Finished difference Result 554 states and 733 transitions. [2024-11-09 05:58:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:58:18,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-09 05:58:18,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:18,175 INFO L225 Difference]: With dead ends: 554 [2024-11-09 05:58:18,176 INFO L226 Difference]: Without dead ends: 550 [2024-11-09 05:58:18,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:58:18,177 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 82 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:18,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 296 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:58:18,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-09 05:58:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 499. [2024-11-09 05:58:18,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 395 states have (on average 1.4987341772151899) internal successors, (592), 444 states have internal predecessors, (592), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:18,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 696 transitions. [2024-11-09 05:58:18,242 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 696 transitions. Word has length 56 [2024-11-09 05:58:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:18,242 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 696 transitions. [2024-11-09 05:58:18,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 696 transitions. [2024-11-09 05:58:18,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:58:18,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:18,245 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1] [2024-11-09 05:58:18,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 05:58:18,246 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:18,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:18,246 INFO L85 PathProgramCache]: Analyzing trace with hash 756491675, now seen corresponding path program 1 times [2024-11-09 05:58:18,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:18,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123901591] [2024-11-09 05:58:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:18,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:18,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815770021] [2024-11-09 05:58:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:18,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:18,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:18,276 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:18,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:58:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:18,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:58:18,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:58:18,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:58:18,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123901591] [2024-11-09 05:58:18,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:18,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815770021] [2024-11-09 05:58:18,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815770021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:58:18,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [784467546] [2024-11-09 05:58:18,720 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:58:18,720 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:18,723 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:18,723 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:18,723 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:58:20,785 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:58:20,786 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:58:20,787 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:58:25,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [784467546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:25,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:58:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [6, 6] total 29 [2024-11-09 05:58:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587367152] [2024-11-09 05:58:25,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:25,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:58:25,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:58:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:58:25,158 INFO L87 Difference]: Start difference. First operand 499 states and 696 transitions. Second operand has 20 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:58:27,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:27,640 INFO L93 Difference]: Finished difference Result 526 states and 705 transitions. [2024-11-09 05:58:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:58:27,641 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 59 [2024-11-09 05:58:27,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:27,644 INFO L225 Difference]: With dead ends: 526 [2024-11-09 05:58:27,644 INFO L226 Difference]: Without dead ends: 521 [2024-11-09 05:58:27,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 132 SyntacticMatches, 15 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:58:27,646 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 536 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:27,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 194 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 05:58:27,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-09 05:58:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 499. [2024-11-09 05:58:27,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 395 states have (on average 1.4860759493670885) internal successors, (587), 444 states have internal predecessors, (587), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 691 transitions. [2024-11-09 05:58:27,715 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 691 transitions. Word has length 59 [2024-11-09 05:58:27,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:27,715 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 691 transitions. [2024-11-09 05:58:27,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:58:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 691 transitions. [2024-11-09 05:58:27,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:58:27,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:27,717 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:27,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 05:58:27,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 05:58:27,918 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:27,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:27,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2018759957, now seen corresponding path program 1 times [2024-11-09 05:58:27,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:27,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633910914] [2024-11-09 05:58:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:27,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:27,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561938588] [2024-11-09 05:58:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:27,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:27,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:27,949 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:27,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:58:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:28,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:58:28,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:28,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:28,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:28,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633910914] [2024-11-09 05:58:28,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:28,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561938588] [2024-11-09 05:58:28,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561938588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:28,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:28,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:58:28,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761344213] [2024-11-09 05:58:28,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:28,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:58:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:58:28,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:58:28,260 INFO L87 Difference]: Start difference. First operand 499 states and 691 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:28,752 INFO L93 Difference]: Finished difference Result 536 states and 709 transitions. [2024-11-09 05:58:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:58:28,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-09 05:58:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:28,755 INFO L225 Difference]: With dead ends: 536 [2024-11-09 05:58:28,755 INFO L226 Difference]: Without dead ends: 533 [2024-11-09 05:58:28,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:58:28,758 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 78 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:28,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:58:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-09 05:58:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 499. [2024-11-09 05:58:28,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 395 states have (on average 1.4759493670886077) internal successors, (583), 444 states have internal predecessors, (583), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 687 transitions. [2024-11-09 05:58:28,834 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 687 transitions. Word has length 65 [2024-11-09 05:58:28,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:28,834 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 687 transitions. [2024-11-09 05:58:28,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:58:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 687 transitions. [2024-11-09 05:58:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 05:58:28,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:28,837 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:28,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:58:29,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 05:58:29,038 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:29,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1842950929, now seen corresponding path program 1 times [2024-11-09 05:58:29,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143474216] [2024-11-09 05:58:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:29,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:29,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643369498] [2024-11-09 05:58:29,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:29,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:29,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:29,071 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:29,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:58:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:29,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:58:29,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:29,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:29,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:29,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143474216] [2024-11-09 05:58:29,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:29,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643369498] [2024-11-09 05:58:29,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643369498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:29,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344692938] [2024-11-09 05:58:29,864 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-09 05:58:29,865 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:29,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:29,865 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:29,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:58:31,625 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:58:31,635 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:58:31,640 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:58:34,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [344692938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:34,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:58:34,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 22 [2024-11-09 05:58:34,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993325473] [2024-11-09 05:58:34,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:34,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:58:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:34,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:58:34,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:58:34,493 INFO L87 Difference]: Start difference. First operand 499 states and 687 transitions. Second operand has 19 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:58:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:36,519 INFO L93 Difference]: Finished difference Result 819 states and 1113 transitions. [2024-11-09 05:58:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 05:58:36,520 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 66 [2024-11-09 05:58:36,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:36,522 INFO L225 Difference]: With dead ends: 819 [2024-11-09 05:58:36,522 INFO L226 Difference]: Without dead ends: 534 [2024-11-09 05:58:36,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 106 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:58:36,524 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 405 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:36,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 243 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:58:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-09 05:58:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 512. [2024-11-09 05:58:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 407 states have (on average 1.461916461916462) internal successors, (595), 456 states have internal predecessors, (595), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 699 transitions. [2024-11-09 05:58:36,604 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 699 transitions. Word has length 66 [2024-11-09 05:58:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:36,605 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 699 transitions. [2024-11-09 05:58:36,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:58:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 699 transitions. [2024-11-09 05:58:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 05:58:36,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:36,606 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:36,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:58:36,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 05:58:36,807 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:36,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash -756846737, now seen corresponding path program 1 times [2024-11-09 05:58:36,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:36,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024611840] [2024-11-09 05:58:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:58:36,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:36,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024611840] [2024-11-09 05:58:36,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024611840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:36,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:36,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:58:36,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484742422] [2024-11-09 05:58:36,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:36,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:58:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:58:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:36,855 INFO L87 Difference]: Start difference. First operand 512 states and 699 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:58:36,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:36,944 INFO L93 Difference]: Finished difference Result 512 states and 699 transitions. [2024-11-09 05:58:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:58:36,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2024-11-09 05:58:36,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:36,947 INFO L225 Difference]: With dead ends: 512 [2024-11-09 05:58:36,947 INFO L226 Difference]: Without dead ends: 511 [2024-11-09 05:58:36,947 INFO L431 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 [2024-11-09 05:58:36,948 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 5 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:36,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 222 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:58:36,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-09 05:58:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 509. [2024-11-09 05:58:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 405 states have (on average 1.4493827160493826) internal successors, (587), 453 states have internal predecessors, (587), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 691 transitions. [2024-11-09 05:58:37,021 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 691 transitions. Word has length 69 [2024-11-09 05:58:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:37,022 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 691 transitions. [2024-11-09 05:58:37,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:58:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 691 transitions. [2024-11-09 05:58:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:58:37,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:37,027 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:37,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:58:37,027 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:37,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1987412238, now seen corresponding path program 1 times [2024-11-09 05:58:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:37,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590460933] [2024-11-09 05:58:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:58:37,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:37,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590460933] [2024-11-09 05:58:37,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590460933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:37,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:37,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:58:37,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777324484] [2024-11-09 05:58:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:37,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:58:37,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:58:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:37,080 INFO L87 Difference]: Start difference. First operand 509 states and 691 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:58:37,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:37,149 INFO L93 Difference]: Finished difference Result 509 states and 691 transitions. [2024-11-09 05:58:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:58:37,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2024-11-09 05:58:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:37,152 INFO L225 Difference]: With dead ends: 509 [2024-11-09 05:58:37,152 INFO L226 Difference]: Without dead ends: 508 [2024-11-09 05:58:37,152 INFO L431 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 [2024-11-09 05:58:37,153 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 4 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:37,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 224 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:58:37,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-09 05:58:37,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-11-09 05:58:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 405 states have (on average 1.4370370370370371) internal successors, (582), 452 states have internal predecessors, (582), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:58:37,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 686 transitions. [2024-11-09 05:58:37,227 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 686 transitions. Word has length 70 [2024-11-09 05:58:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:37,228 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 686 transitions. [2024-11-09 05:58:37,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:58:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 686 transitions. [2024-11-09 05:58:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 05:58:37,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:37,229 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:37,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 05:58:37,230 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:37,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2129461199, now seen corresponding path program 1 times [2024-11-09 05:58:37,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:37,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063121791] [2024-11-09 05:58:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:37,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:37,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845027177] [2024-11-09 05:58:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:37,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:37,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:37,252 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:37,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:58:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:37,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:58:37,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:58:37,841 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:38,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063121791] [2024-11-09 05:58:38,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:38,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845027177] [2024-11-09 05:58:38,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845027177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:38,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1242848703] [2024-11-09 05:58:38,190 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 05:58:38,191 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:38,191 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:38,191 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:38,191 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:00:18,941 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:00:18,942 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:00:18,943 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:00:31,428 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22693#(and (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (exists ((|v_ULTIMATE.start_main_~k~0#1_68| Int) (|v_ULTIMATE.start_main_~s~0#1_54| Int)) (and (<= (* |v_ULTIMATE.start_main_~s~0#1_54| |v_ULTIMATE.start_main_~k~0#1_68|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_54| |v_ULTIMATE.start_main_~k~0#1_68|))))) (exists ((|v_ULTIMATE.start_main_~p~0#1_59| Int) (|v_ULTIMATE.start_main_~x~0#1_58| Int)) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_58| |v_ULTIMATE.start_main_~p~0#1_59|) 9223372036854775809) 0)) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 06:00:31,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:00:31,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:00:31,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:00:31,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272210032] [2024-11-09 06:00:31,428 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:00:31,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:00:31,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:31,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:00:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=2400, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 06:00:31,430 INFO L87 Difference]: Start difference. First operand 508 states and 686 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:00:33,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:33,173 INFO L93 Difference]: Finished difference Result 684 states and 958 transitions. [2024-11-09 06:00:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:00:33,173 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2024-11-09 06:00:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:33,175 INFO L225 Difference]: With dead ends: 684 [2024-11-09 06:00:33,176 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 06:00:33,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 100 SyntacticMatches, 11 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=525, Invalid=3135, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 06:00:33,178 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 390 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:33,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 646 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:00:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 06:00:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 638. [2024-11-09 06:00:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 519 states have (on average 1.510597302504817) internal successors, (784), 566 states have internal predecessors, (784), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 06:00:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 920 transitions. [2024-11-09 06:00:33,261 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 920 transitions. Word has length 71 [2024-11-09 06:00:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:33,261 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 920 transitions. [2024-11-09 06:00:33,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:00:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 920 transitions. [2024-11-09 06:00:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 06:00:33,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:33,263 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:33,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 06:00:33,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 06:00:33,463 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:00:33,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:33,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1588787896, now seen corresponding path program 1 times [2024-11-09 06:00:33,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:33,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190777916] [2024-11-09 06:00:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:00:33,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592001598] [2024-11-09 06:00:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:33,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:33,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:33,489 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:33,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:00:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:33,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:00:33,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:00:34,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:00:35,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:35,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190777916] [2024-11-09 06:00:35,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:00:35,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592001598] [2024-11-09 06:00:35,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592001598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:35,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [9492578] [2024-11-09 06:00:35,481 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-09 06:00:35,481 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:00:35,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:00:35,482 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:00:35,482 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:02:05,788 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:02:05,789 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:02:05,790 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:02:22,332 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24571#(and (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (exists ((|v_ULTIMATE.start_main_~s~0#1_59| Int) (|v_ULTIMATE.start_main_~k~0#1_83| Int)) (and (<= (* |v_ULTIMATE.start_main_~s~0#1_59| |v_ULTIMATE.start_main_~k~0#1_83|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_59| |v_ULTIMATE.start_main_~k~0#1_83|))))) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (exists ((|v_ULTIMATE.start_main_~x~0#1_59| Int) (|v_ULTIMATE.start_main_~p~0#1_66| Int)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_59| |v_ULTIMATE.start_main_~p~0#1_66|))) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 06:02:22,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:02:22,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:02:22,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:02:22,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724159311] [2024-11-09 06:02:22,333 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:02:22,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:02:22,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:02:22,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:02:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:02:22,335 INFO L87 Difference]: Start difference. First operand 638 states and 920 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:23,953 INFO L93 Difference]: Finished difference Result 684 states and 953 transitions. [2024-11-09 06:02:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:02:23,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-11-09 06:02:23,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:23,956 INFO L225 Difference]: With dead ends: 684 [2024-11-09 06:02:23,956 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 06:02:23,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 102 SyntacticMatches, 11 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1470 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=528, Invalid=3254, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 06:02:23,959 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 395 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:23,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 575 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:02:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 06:02:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 639. [2024-11-09 06:02:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 520 states have (on average 1.501923076923077) internal successors, (781), 567 states have internal predecessors, (781), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 06:02:24,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 917 transitions. [2024-11-09 06:02:24,042 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 917 transitions. Word has length 72 [2024-11-09 06:02:24,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:24,042 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 917 transitions. [2024-11-09 06:02:24,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:24,043 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 917 transitions. [2024-11-09 06:02:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 06:02:24,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:24,044 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:24,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:02:24,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 06:02:24,248 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:02:24,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:24,249 INFO L85 PathProgramCache]: Analyzing trace with hash 2007784689, now seen corresponding path program 1 times [2024-11-09 06:02:24,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:02:24,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216358163] [2024-11-09 06:02:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:24,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:02:24,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111008427] [2024-11-09 06:02:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:24,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:24,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:24,274 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:24,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:02:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:24,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:02:24,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:02:24,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:27,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:27,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216358163] [2024-11-09 06:02:27,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:02:27,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111008427] [2024-11-09 06:02:27,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111008427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:02:27,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [600849586] [2024-11-09 06:02:27,422 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-09 06:02:27,423 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:02:27,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:02:27,423 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:02:27,423 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:04:01,312 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:04:01,314 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:04:01,315 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:04:15,898 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26459#(and (exists ((|v_ULTIMATE.start_main_~s~0#1_64| Int) (|v_ULTIMATE.start_main_~k~0#1_98| Int)) (and (<= (* |v_ULTIMATE.start_main_~s~0#1_64| |v_ULTIMATE.start_main_~k~0#1_98|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~s~0#1_64| |v_ULTIMATE.start_main_~k~0#1_98|) 9223372036854775808)))) (exists ((|v_ULTIMATE.start_main_~q~0#1_74| Int) (|v_ULTIMATE.start_main_~x~0#1_60| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_60| |ULTIMATE.start_main_~p~0#1|) 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_74| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~x~0#1_60| |ULTIMATE.start_main_~p~0#1|) 9223372036854775807) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_60| |v_ULTIMATE.start_main_~q~0#1_74|) 9223372036854775809) 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_74| 9223372036854775808)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 06:04:15,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:04:15,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:04:15,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:04:15,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077336346] [2024-11-09 06:04:15,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:04:15,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:04:15,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:04:15,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:04:15,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=2903, Unknown=1, NotChecked=0, Total=3422 [2024-11-09 06:04:15,901 INFO L87 Difference]: Start difference. First operand 639 states and 917 transitions. Second operand has 12 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:04:17,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:04:17,700 INFO L93 Difference]: Finished difference Result 684 states and 948 transitions. [2024-11-09 06:04:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:04:17,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-11-09 06:04:17,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:04:17,703 INFO L225 Difference]: With dead ends: 684 [2024-11-09 06:04:17,703 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 06:04:17,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 105 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=596, Invalid=3825, Unknown=1, NotChecked=0, Total=4422 [2024-11-09 06:04:17,705 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 391 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:04:17,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 656 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:04:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 06:04:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 640. [2024-11-09 06:04:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 521 states have (on average 1.493282149712092) internal successors, (778), 568 states have internal predecessors, (778), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 06:04:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 914 transitions. [2024-11-09 06:04:17,787 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 914 transitions. Word has length 73 [2024-11-09 06:04:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:04:17,788 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 914 transitions. [2024-11-09 06:04:17,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:04:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 914 transitions. [2024-11-09 06:04:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:04:17,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:04:17,789 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1] [2024-11-09 06:04:17,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 06:04:17,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 06:04:17,990 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:04:17,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:04:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1492283221, now seen corresponding path program 1 times [2024-11-09 06:04:17,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:04:17,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838611460] [2024-11-09 06:04:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:04:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:04:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:04:18,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668250042] [2024-11-09 06:04:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:04:18,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:04:18,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:04:18,009 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:04:18,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:04:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:04:18,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:04:18,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:04:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:04:18,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:04:18,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:04:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838611460] [2024-11-09 06:04:18,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:04:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668250042] [2024-11-09 06:04:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668250042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:04:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [804739733] [2024-11-09 06:04:18,387 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 06:04:18,388 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:04:18,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:04:18,388 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:04:18,388 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:05:52,834 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:05:52,835 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:05:52,835 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:06:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [804739733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:06:04,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:06:04,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [7] total 45 [2024-11-09 06:06:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627966403] [2024-11-09 06:06:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:06:04,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-09 06:06:04,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:06:04,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-09 06:06:04,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=417, Invalid=1839, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 06:06:04,357 INFO L87 Difference]: Start difference. First operand 640 states and 914 transitions. Second operand has 40 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 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) [2024-11-09 06:06:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:06:13,161 INFO L93 Difference]: Finished difference Result 1213 states and 1755 transitions. [2024-11-09 06:06:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-09 06:06:13,162 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 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) Word has length 74 [2024-11-09 06:06:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:06:13,164 INFO L225 Difference]: With dead ends: 1213 [2024-11-09 06:06:13,164 INFO L226 Difference]: Without dead ends: 878 [2024-11-09 06:06:13,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 107 SyntacticMatches, 8 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2085 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=1489, Invalid=5317, Unknown=0, NotChecked=0, Total=6806 [2024-11-09 06:06:13,166 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 984 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:06:13,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 309 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 06:06:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-09 06:06:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 677. [2024-11-09 06:06:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 554 states have (on average 1.4855595667870036) internal successors, (823), 601 states have internal predecessors, (823), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:06:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 967 transitions. [2024-11-09 06:06:13,276 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 967 transitions. Word has length 74 [2024-11-09 06:06:13,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:06:13,276 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 967 transitions. [2024-11-09 06:06:13,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 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) [2024-11-09 06:06:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 967 transitions. [2024-11-09 06:06:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:06:13,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:13,278 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:06:13,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 06:06:13,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:06:13,482 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:06:13,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:13,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2111783386, now seen corresponding path program 1 times [2024-11-09 06:06:13,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:06:13,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218495061] [2024-11-09 06:06:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:13,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:06:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:06:13,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406900609] [2024-11-09 06:06:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:13,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:06:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:06:13,508 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:06:13,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:06:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:06:13,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:06:13,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:06:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:06:14,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:06:17,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:06:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218495061] [2024-11-09 06:06:17,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:06:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406900609] [2024-11-09 06:06:17,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406900609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:06:17,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1619656371] [2024-11-09 06:06:17,381 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-09 06:06:17,381 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:06:17,383 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:06:17,383 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:06:17,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:07:39,937 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:07:39,938 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:07:39,939 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:07:56,657 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30912#(and (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~s~0#1_73| Int) (|v_ULTIMATE.start_main_~k~0#1_130| Int)) (and (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_73| |v_ULTIMATE.start_main_~k~0#1_130|))) (<= (* |v_ULTIMATE.start_main_~s~0#1_73| |v_ULTIMATE.start_main_~k~0#1_130|) 9223372036854775807))) (exists ((|v_ULTIMATE.start_main_~q~0#1_87| Int) (|v_ULTIMATE.start_main_~x~0#1_61| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_87| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_61| |v_ULTIMATE.start_main_~q~0#1_87|)) (<= (* |v_ULTIMATE.start_main_~x~0#1_61| |ULTIMATE.start_main_~p~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_61| |ULTIMATE.start_main_~p~0#1|))) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_87| 9223372036854775808)))))' at error location [2024-11-09 06:07:56,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:07:56,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:07:56,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:07:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131025127] [2024-11-09 06:07:56,658 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:07:56,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:07:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:07:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=544, Invalid=2995, Unknown=1, NotChecked=0, Total=3540 [2024-11-09 06:07:56,660 INFO L87 Difference]: Start difference. First operand 677 states and 967 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:07:58,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:58,147 INFO L93 Difference]: Finished difference Result 727 states and 1002 transitions. [2024-11-09 06:07:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:07:58,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-09 06:07:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:58,150 INFO L225 Difference]: With dead ends: 727 [2024-11-09 06:07:58,150 INFO L226 Difference]: Without dead ends: 725 [2024-11-09 06:07:58,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 107 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1673 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=647, Invalid=4044, Unknown=1, NotChecked=0, Total=4692 [2024-11-09 06:07:58,151 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 387 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:58,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 583 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:07:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-09 06:07:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 678. [2024-11-09 06:07:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 555 states have (on average 1.4774774774774775) internal successors, (820), 602 states have internal predecessors, (820), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:07:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 964 transitions. [2024-11-09 06:07:58,262 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 964 transitions. Word has length 74 [2024-11-09 06:07:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:58,263 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 964 transitions. [2024-11-09 06:07:58,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:07:58,263 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 964 transitions. [2024-11-09 06:07:58,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:07:58,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:58,265 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1] [2024-11-09 06:07:58,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:07:58,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:58,465 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:07:58,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:58,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2110370495, now seen corresponding path program 1 times [2024-11-09 06:07:58,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:58,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226067991] [2024-11-09 06:07:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:58,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:07:58,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807364422] [2024-11-09 06:07:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:58,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:58,501 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:07:58,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:07:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:58,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:07:58,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:07:59,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:07:59,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:59,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226067991] [2024-11-09 06:07:59,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:07:59,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807364422] [2024-11-09 06:07:59,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807364422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:07:59,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [398516630] [2024-11-09 06:07:59,406 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 06:07:59,406 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:07:59,406 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:07:59,407 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:07:59,407 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:09:23,787 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:09:23,788 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:09:23,789 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:09:37,741 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32912#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~d~0#1| 1) (<= |ULTIMATE.start_main_~k~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~r~0#1_76| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int)) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_55| |v_ULTIMATE.start_main_~r~0#1_76|) 9223372036854775809) 0)))' at error location [2024-11-09 06:09:37,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:09:37,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:09:37,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:09:37,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078551875] [2024-11-09 06:09:37,742 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:09:37,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:09:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:09:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:09:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=2712, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 06:09:37,745 INFO L87 Difference]: Start difference. First operand 678 states and 964 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:09:39,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:39,404 INFO L93 Difference]: Finished difference Result 726 states and 992 transitions. [2024-11-09 06:09:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:09:39,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-09 06:09:39,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:39,408 INFO L225 Difference]: With dead ends: 726 [2024-11-09 06:09:39,408 INFO L226 Difference]: Without dead ends: 725 [2024-11-09 06:09:39,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 111 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=567, Invalid=3855, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 06:09:39,410 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 407 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:39,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 678 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:09:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-09 06:09:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 678. [2024-11-09 06:09:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 555 states have (on average 1.4702702702702704) internal successors, (816), 602 states have internal predecessors, (816), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:09:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 960 transitions. [2024-11-09 06:09:39,523 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 960 transitions. Word has length 74 [2024-11-09 06:09:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:39,524 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 960 transitions. [2024-11-09 06:09:39,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:09:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 960 transitions. [2024-11-09 06:09:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:09:39,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:39,525 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:39,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 06:09:39,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:09:39,726 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:09:39,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:39,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1040775699, now seen corresponding path program 1 times [2024-11-09 06:09:39,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:09:39,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761071407] [2024-11-09 06:09:39,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:09:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:09:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072356151] [2024-11-09 06:09:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:39,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:09:39,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:09:39,752 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:09:39,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:09:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:39,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:09:39,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:09:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:09:40,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:09:41,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:09:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761071407] [2024-11-09 06:09:41,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:09:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072356151] [2024-11-09 06:09:41,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072356151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:09:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1213739477] [2024-11-09 06:09:41,833 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 06:09:41,834 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:09:41,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:09:41,834 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:09:41,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:11:11,072 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:11:11,073 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:11:11,074 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:11:35,196 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34914#(and (exists ((|v_ULTIMATE.start_main_~k~0#1_161| Int) (|v_ULTIMATE.start_main_~s~0#1_83| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~s~0#1_83| |v_ULTIMATE.start_main_~k~0#1_161|) 9223372036854775808)) (<= (* |v_ULTIMATE.start_main_~s~0#1_83| |v_ULTIMATE.start_main_~k~0#1_161|) 9223372036854775807))) (exists ((|v_ULTIMATE.start_main_~p~0#1_99| Int) (|v_ULTIMATE.start_main_~x~0#1_62| Int) (|v_ULTIMATE.start_main_~q~0#1_99| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~q~0#1_99|) 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~p~0#1_99|)) (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~q~0#1_99|)) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~p~0#1_99|) 9223372036854775808)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 06:11:35,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:11:35,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:11:35,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:11:35,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569824276] [2024-11-09 06:11:35,197 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:11:35,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:11:35,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:11:35,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:11:35,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=2875, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 06:11:35,199 INFO L87 Difference]: Start difference. First operand 678 states and 960 transitions. Second operand has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:11:36,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:11:36,730 INFO L93 Difference]: Finished difference Result 862 states and 1177 transitions. [2024-11-09 06:11:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:11:36,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-11-09 06:11:36,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:11:36,734 INFO L225 Difference]: With dead ends: 862 [2024-11-09 06:11:36,734 INFO L226 Difference]: Without dead ends: 860 [2024-11-09 06:11:36,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 111 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=615, Invalid=3807, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 06:11:36,736 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 444 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:11:36,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 496 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:11:36,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-09 06:11:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 680. [2024-11-09 06:11:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 557 states have (on average 1.4685816876122082) internal successors, (818), 604 states have internal predecessors, (818), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:11:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 962 transitions. [2024-11-09 06:11:36,862 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 962 transitions. Word has length 75 [2024-11-09 06:11:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:11:36,863 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 962 transitions. [2024-11-09 06:11:36,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:11:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 962 transitions. [2024-11-09 06:11:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:11:36,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:11:36,864 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:11:36,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:11:37,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 06:11:37,065 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:11:37,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:11:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash 996975981, now seen corresponding path program 1 times [2024-11-09 06:11:37,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:11:37,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867855395] [2024-11-09 06:11:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:11:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:11:37,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542819915] [2024-11-09 06:11:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:37,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:11:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:11:37,088 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:11:37,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bea2c98-6c08-4cb2-870c-c5bb41a4b4ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:11:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:11:37,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:11:37,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:11:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:11:37,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:11:39,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:11:39,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867855395] [2024-11-09 06:11:39,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:11:39,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542819915] [2024-11-09 06:11:39,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542819915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:11:39,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1102730886] [2024-11-09 06:11:39,307 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 06:11:39,307 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:11:39,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:11:39,307 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:11:39,308 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs