./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 782b97ab44d54cd800983e700b0d1573a763da7ea88502d61372bfc21545a0f2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:57:19,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:57:20,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:57:20,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:57:20,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:57:20,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:57:20,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:57:20,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:57:20,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:57:20,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:57:20,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:57:20,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:57:20,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:57:20,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:57:20,118 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:57:20,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:57:20,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:57:20,120 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:57:20,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:57:20,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:57:20,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:57:20,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:57:20,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:57:20,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:57:20,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:57:20,124 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:57:20,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:57:20,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:57:20,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:57:20,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:57:20,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:57:20,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:57:20,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:20,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:57:20,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:57:20,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:57:20,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:57:20,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:57:20,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:57:20,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:57:20,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:57:20,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:57:20,133 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 782b97ab44d54cd800983e700b0d1573a763da7ea88502d61372bfc21545a0f2 [2024-11-08 18:57:20,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:57:20,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:57:20,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:57:20,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:57:20,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:57:20,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c Unable to find full path for "g++" [2024-11-08 18:57:23,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:57:23,793 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:57:23,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c [2024-11-08 18:57:23,852 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/data/6946c2618/7dfc9acbaea649f4870fde578ceb5047/FLAG3a05db687 [2024-11-08 18:57:23,876 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/data/6946c2618/7dfc9acbaea649f4870fde578ceb5047 [2024-11-08 18:57:23,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:57:23,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:57:23,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:23,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:57:23,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:57:23,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:23" (1/1) ... [2024-11-08 18:57:23,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446fe042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:23, skipping insertion in model container [2024-11-08 18:57:23,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:23" (1/1) ... [2024-11-08 18:57:24,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:57:24,715 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c[26860,26873] [2024-11-08 18:57:24,795 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c[29677,29690] [2024-11-08 18:57:25,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:25,800 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:57:25,852 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c[26860,26873] [2024-11-08 18:57:25,858 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c[29677,29690] [2024-11-08 18:57:26,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:26,484 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:57:26,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26 WrapperNode [2024-11-08 18:57:26,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:26,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:26,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:57:26,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:57:26,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:26,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:26,980 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-11-08 18:57:26,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:26,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:57:26,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:57:26,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:57:26,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:26,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,220 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,364 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:57:27,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:57:27,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:57:27,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:57:27,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:57:27,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (1/1) ... [2024-11-08 18:57:27,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:27,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:27,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:57:27,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:57:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:57:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:57:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:57:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:57:28,302 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:57:28,305 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:57:35,978 INFO L? ?]: Removed 760 outVars from TransFormulas that were not future-live. [2024-11-08 18:57:35,979 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:57:36,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:57:36,027 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:57:36,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:36 BoogieIcfgContainer [2024-11-08 18:57:36,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:57:36,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:57:36,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:57:36,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:57:36,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:57:23" (1/3) ... [2024-11-08 18:57:36,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad448de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:36, skipping insertion in model container [2024-11-08 18:57:36,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:26" (2/3) ... [2024-11-08 18:57:36,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad448de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:36, skipping insertion in model container [2024-11-08 18:57:36,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:36" (3/3) ... [2024-11-08 18:57:36,044 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label06.c [2024-11-08 18:57:36,071 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:57:36,071 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:57:36,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:57:36,238 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@525a4975, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:57:36,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:57:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 18:57:36,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:36,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:36,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:36,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:36,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1008044980, now seen corresponding path program 1 times [2024-11-08 18:57:36,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:36,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092533312] [2024-11-08 18:57:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:36,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:36,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:36,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092533312] [2024-11-08 18:57:36,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092533312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:36,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:57:36,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687141614] [2024-11-08 18:57:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:36,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:36,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:36,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:36,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:36,976 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:43,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:43,034 INFO L93 Difference]: Finished difference Result 2584 states and 4968 transitions. [2024-11-08 18:57:43,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-08 18:57:43,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:43,066 INFO L225 Difference]: With dead ends: 2584 [2024-11-08 18:57:43,066 INFO L226 Difference]: Without dead ends: 1633 [2024-11-08 18:57:43,073 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 [2024-11-08 18:57:43,077 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 1104 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:43,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 388 Invalid, 3208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-08 18:57:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-08 18:57:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-11-08 18:57:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.8418148375229921) internal successors, (3004), 1632 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 3004 transitions. [2024-11-08 18:57:43,232 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 3004 transitions. Word has length 24 [2024-11-08 18:57:43,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:43,233 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 3004 transitions. [2024-11-08 18:57:43,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 3004 transitions. [2024-11-08 18:57:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 18:57:43,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:43,235 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:43,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:57:43,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:43,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:43,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1796129413, now seen corresponding path program 1 times [2024-11-08 18:57:43,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:43,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001264140] [2024-11-08 18:57:43,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:43,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:43,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:43,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001264140] [2024-11-08 18:57:43,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001264140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:43,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:43,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:43,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128023283] [2024-11-08 18:57:43,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:43,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:57:43,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:43,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:57:43,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:57:43,678 INFO L87 Difference]: Start difference. First operand 1633 states and 3004 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:43,846 INFO L93 Difference]: Finished difference Result 1698 states and 3106 transitions. [2024-11-08 18:57:43,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:57:43,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-08 18:57:43,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:43,855 INFO L225 Difference]: With dead ends: 1698 [2024-11-08 18:57:43,856 INFO L226 Difference]: Without dead ends: 1633 [2024-11-08 18:57:43,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:57:43,859 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:43,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:57:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-08 18:57:43,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-11-08 18:57:43,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.804414469650521) internal successors, (2943), 1632 states have internal predecessors, (2943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2943 transitions. [2024-11-08 18:57:43,922 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2943 transitions. Word has length 31 [2024-11-08 18:57:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:43,923 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2943 transitions. [2024-11-08 18:57:43,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2943 transitions. [2024-11-08 18:57:43,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 18:57:43,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:43,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:43,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:57:43,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:43,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1427591851, now seen corresponding path program 1 times [2024-11-08 18:57:43,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:43,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581988805] [2024-11-08 18:57:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:43,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:44,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:44,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581988805] [2024-11-08 18:57:44,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581988805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:44,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:44,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:57:44,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546927415] [2024-11-08 18:57:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:44,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:57:44,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:44,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:57:44,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:57:44,555 INFO L87 Difference]: Start difference. First operand 1633 states and 2943 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:45,502 INFO L93 Difference]: Finished difference Result 2609 states and 4511 transitions. [2024-11-08 18:57:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:57:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-08 18:57:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:45,514 INFO L225 Difference]: With dead ends: 2609 [2024-11-08 18:57:45,514 INFO L226 Difference]: Without dead ends: 2548 [2024-11-08 18:57:45,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:57:45,517 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13388 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13388 SdHoareTripleChecker+Valid, 6444 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:45,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13388 Valid, 6444 Invalid, 374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:57:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-08 18:57:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1692. [2024-11-08 18:57:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1690 states have (on average 1.7976331360946745) internal successors, (3038), 1691 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 3038 transitions. [2024-11-08 18:57:45,581 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 3038 transitions. Word has length 91 [2024-11-08 18:57:45,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:45,582 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 3038 transitions. [2024-11-08 18:57:45,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:45,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 3038 transitions. [2024-11-08 18:57:45,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:57:45,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:45,585 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:45,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:57:45,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:45,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:45,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1058077381, now seen corresponding path program 1 times [2024-11-08 18:57:45,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:45,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979794299] [2024-11-08 18:57:45,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:45,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:45,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:45,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979794299] [2024-11-08 18:57:45,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979794299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:45,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:45,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:45,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855622187] [2024-11-08 18:57:45,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:45,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:45,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:45,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:45,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:45,771 INFO L87 Difference]: Start difference. First operand 1692 states and 3038 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:45,827 INFO L93 Difference]: Finished difference Result 1921 states and 3405 transitions. [2024-11-08 18:57:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 18:57:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:45,838 INFO L225 Difference]: With dead ends: 1921 [2024-11-08 18:57:45,839 INFO L226 Difference]: Without dead ends: 1801 [2024-11-08 18:57:45,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:45,844 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:45,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:45,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-11-08 18:57:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2024-11-08 18:57:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.78519755147468) internal successors, (3208), 1798 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:45,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 3208 transitions. [2024-11-08 18:57:45,902 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 3208 transitions. Word has length 93 [2024-11-08 18:57:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:45,904 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 3208 transitions. [2024-11-08 18:57:45,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 3208 transitions. [2024-11-08 18:57:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:57:45,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:45,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:45,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:57:45,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:45,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1124570893, now seen corresponding path program 1 times [2024-11-08 18:57:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:45,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168129822] [2024-11-08 18:57:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:45,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:46,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:46,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168129822] [2024-11-08 18:57:46,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168129822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:46,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:46,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:57:46,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083391558] [2024-11-08 18:57:46,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:46,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:57:46,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:46,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:57:46,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:57:46,901 INFO L87 Difference]: Start difference. First operand 1799 states and 3208 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:47,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:47,695 INFO L93 Difference]: Finished difference Result 2028 states and 3572 transitions. [2024-11-08 18:57:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:57:47,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 18:57:47,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:47,705 INFO L225 Difference]: With dead ends: 2028 [2024-11-08 18:57:47,705 INFO L226 Difference]: Without dead ends: 1801 [2024-11-08 18:57:47,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:57:47,708 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 9120 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9120 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:47,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9120 Valid, 2265 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:57:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-11-08 18:57:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2024-11-08 18:57:47,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.7840845854201446) internal successors, (3206), 1798 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 3206 transitions. [2024-11-08 18:57:47,762 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 3206 transitions. Word has length 93 [2024-11-08 18:57:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:47,763 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 3206 transitions. [2024-11-08 18:57:47,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 3206 transitions. [2024-11-08 18:57:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:57:47,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:47,765 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:47,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:57:47,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:47,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:47,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1311621888, now seen corresponding path program 1 times [2024-11-08 18:57:47,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:47,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401863498] [2024-11-08 18:57:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:47,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:47,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:47,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401863498] [2024-11-08 18:57:47,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401863498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:47,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:47,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:57:47,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130847060] [2024-11-08 18:57:47,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:47,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:47,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:47,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:47,930 INFO L87 Difference]: Start difference. First operand 1799 states and 3206 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:53,341 INFO L93 Difference]: Finished difference Result 4054 states and 7321 transitions. [2024-11-08 18:57:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:53,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 18:57:53,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:53,353 INFO L225 Difference]: With dead ends: 4054 [2024-11-08 18:57:53,353 INFO L226 Difference]: Without dead ends: 2550 [2024-11-08 18:57:53,356 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 [2024-11-08 18:57:53,357 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 944 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:53,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 613 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 18:57:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2024-11-08 18:57:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2550. [2024-11-08 18:57:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.444662480376766) internal successors, (3681), 2549 states have internal predecessors, (3681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3681 transitions. [2024-11-08 18:57:53,508 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3681 transitions. Word has length 93 [2024-11-08 18:57:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:53,509 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3681 transitions. [2024-11-08 18:57:53,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:53,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3681 transitions. [2024-11-08 18:57:53,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:57:53,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:53,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:53,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:57:53,512 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:53,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash 87236494, now seen corresponding path program 1 times [2024-11-08 18:57:53,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:53,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907171392] [2024-11-08 18:57:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:53,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:54,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907171392] [2024-11-08 18:57:54,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907171392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:54,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183782637] [2024-11-08 18:57:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:54,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:57:54,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:54,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:57:54,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:57:54,084 INFO L87 Difference]: Start difference. First operand 2550 states and 3681 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:54,169 INFO L93 Difference]: Finished difference Result 2558 states and 3690 transitions. [2024-11-08 18:57:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:57:54,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-08 18:57:54,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:54,181 INFO L225 Difference]: With dead ends: 2558 [2024-11-08 18:57:54,181 INFO L226 Difference]: Without dead ends: 2556 [2024-11-08 18:57:54,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:57:54,184 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:54,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:54,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-11-08 18:57:54,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2024-11-08 18:57:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2554 states have (on average 1.4432263116679718) internal successors, (3686), 2555 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3686 transitions. [2024-11-08 18:57:54,272 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3686 transitions. Word has length 94 [2024-11-08 18:57:54,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:54,272 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 3686 transitions. [2024-11-08 18:57:54,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3686 transitions. [2024-11-08 18:57:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:54,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:54,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:54,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:57:54,276 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:54,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1340192755, now seen corresponding path program 1 times [2024-11-08 18:57:54,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:54,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634307190] [2024-11-08 18:57:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:54,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:54,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:54,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634307190] [2024-11-08 18:57:54,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634307190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:54,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:54,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:54,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513050455] [2024-11-08 18:57:54,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:54,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:54,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:54,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:54,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,455 INFO L87 Difference]: Start difference. First operand 2556 states and 3686 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:54,507 INFO L93 Difference]: Finished difference Result 2803 states and 4072 transitions. [2024-11-08 18:57:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:54,517 INFO L225 Difference]: With dead ends: 2803 [2024-11-08 18:57:54,517 INFO L226 Difference]: Without dead ends: 2677 [2024-11-08 18:57:54,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,520 INFO L432 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 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 [2024-11-08 18:57:54,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-11-08 18:57:54,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2024-11-08 18:57:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.4478114478114479) internal successors, (3870), 2674 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3870 transitions. [2024-11-08 18:57:54,589 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3870 transitions. Word has length 95 [2024-11-08 18:57:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:54,590 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 3870 transitions. [2024-11-08 18:57:54,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3870 transitions. [2024-11-08 18:57:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:54,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:54,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:57:54,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:54,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 972794125, now seen corresponding path program 1 times [2024-11-08 18:57:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690913213] [2024-11-08 18:57:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:54,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:54,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690913213] [2024-11-08 18:57:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690913213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:54,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:54,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:54,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189045784] [2024-11-08 18:57:54,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:54,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:54,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:54,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:54,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,723 INFO L87 Difference]: Start difference. First operand 2675 states and 3870 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:54,772 INFO L93 Difference]: Finished difference Result 3349 states and 4922 transitions. [2024-11-08 18:57:54,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:54,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:54,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:54,782 INFO L225 Difference]: With dead ends: 3349 [2024-11-08 18:57:54,783 INFO L226 Difference]: Without dead ends: 3000 [2024-11-08 18:57:54,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,785 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 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 [2024-11-08 18:57:54,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-11-08 18:57:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2024-11-08 18:57:54,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2996 states have (on average 1.4579439252336448) internal successors, (4368), 2997 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4368 transitions. [2024-11-08 18:57:54,857 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4368 transitions. Word has length 95 [2024-11-08 18:57:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:54,857 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4368 transitions. [2024-11-08 18:57:54,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:54,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4368 transitions. [2024-11-08 18:57:54,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:54,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:54,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:54,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:57:54,860 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:54,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:54,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1217189107, now seen corresponding path program 1 times [2024-11-08 18:57:54,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:54,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534602546] [2024-11-08 18:57:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:54,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:54,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:54,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:54,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534602546] [2024-11-08 18:57:54,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534602546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:54,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:54,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:54,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340208708] [2024-11-08 18:57:54,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:54,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:54,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:54,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:54,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,965 INFO L87 Difference]: Start difference. First operand 2998 states and 4368 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:55,022 INFO L93 Difference]: Finished difference Result 4294 states and 6374 transitions. [2024-11-08 18:57:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:55,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:55,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:55,035 INFO L225 Difference]: With dead ends: 4294 [2024-11-08 18:57:55,036 INFO L226 Difference]: Without dead ends: 3622 [2024-11-08 18:57:55,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:55,038 INFO L432 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 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 [2024-11-08 18:57:55,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-11-08 18:57:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3620. [2024-11-08 18:57:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 1.4693200663349917) internal successors, (5316), 3619 states have internal predecessors, (5316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5316 transitions. [2024-11-08 18:57:55,128 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5316 transitions. Word has length 95 [2024-11-08 18:57:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:55,129 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5316 transitions. [2024-11-08 18:57:55,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5316 transitions. [2024-11-08 18:57:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:55,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:55,131 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:55,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:57:55,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:55,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash -953332723, now seen corresponding path program 1 times [2024-11-08 18:57:55,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:55,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726425071] [2024-11-08 18:57:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:55,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:55,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:55,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726425071] [2024-11-08 18:57:55,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726425071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:55,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:55,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:55,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635969637] [2024-11-08 18:57:55,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:55,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:55,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:55,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:55,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:55,239 INFO L87 Difference]: Start difference. First operand 3620 states and 5316 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:55,317 INFO L93 Difference]: Finished difference Result 6112 states and 9134 transitions. [2024-11-08 18:57:55,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:55,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:55,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:55,328 INFO L225 Difference]: With dead ends: 6112 [2024-11-08 18:57:55,329 INFO L226 Difference]: Without dead ends: 4818 [2024-11-08 18:57:55,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:55,332 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 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 [2024-11-08 18:57:55,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:55,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2024-11-08 18:57:55,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4816. [2024-11-08 18:57:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.478188616535106) internal successors, (7116), 4815 states have internal predecessors, (7116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7116 transitions. [2024-11-08 18:57:55,518 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7116 transitions. Word has length 95 [2024-11-08 18:57:55,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:55,519 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 7116 transitions. [2024-11-08 18:57:55,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7116 transitions. [2024-11-08 18:57:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:55,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:55,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:55,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:57:55,521 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:55,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:55,522 INFO L85 PathProgramCache]: Analyzing trace with hash 284929293, now seen corresponding path program 1 times [2024-11-08 18:57:55,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:55,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451135069] [2024-11-08 18:57:55,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:55,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:55,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451135069] [2024-11-08 18:57:55,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451135069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:55,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:55,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305036112] [2024-11-08 18:57:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:55,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:55,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:55,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:55,676 INFO L87 Difference]: Start difference. First operand 4816 states and 7116 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:55,803 INFO L93 Difference]: Finished difference Result 9604 states and 14366 transitions. [2024-11-08 18:57:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:55,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:55,820 INFO L225 Difference]: With dead ends: 9604 [2024-11-08 18:57:55,820 INFO L226 Difference]: Without dead ends: 7114 [2024-11-08 18:57:55,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:55,825 INFO L432 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 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 [2024-11-08 18:57:55,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:55,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-11-08 18:57:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7112. [2024-11-08 18:57:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.480168776371308) internal successors, (10524), 7111 states have internal predecessors, (10524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10524 transitions. [2024-11-08 18:57:56,061 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10524 transitions. Word has length 95 [2024-11-08 18:57:56,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:56,061 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 10524 transitions. [2024-11-08 18:57:56,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:56,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10524 transitions. [2024-11-08 18:57:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:56,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:56,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:56,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:57:56,064 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:56,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:56,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1930539507, now seen corresponding path program 1 times [2024-11-08 18:57:56,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:56,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426505366] [2024-11-08 18:57:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:56,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:56,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426505366] [2024-11-08 18:57:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426505366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:56,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:56,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761496687] [2024-11-08 18:57:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:56,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:56,183 INFO L87 Difference]: Start difference. First operand 7112 states and 10524 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:56,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:56,383 INFO L93 Difference]: Finished difference Result 16300 states and 24254 transitions. [2024-11-08 18:57:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:56,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:56,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:56,408 INFO L225 Difference]: With dead ends: 16300 [2024-11-08 18:57:56,408 INFO L226 Difference]: Without dead ends: 11514 [2024-11-08 18:57:56,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:56,418 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1793 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 [2024-11-08 18:57:56,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:56,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2024-11-08 18:57:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 11512. [2024-11-08 18:57:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11510 states have (on average 1.4731537793223284) internal successors, (16956), 11511 states have internal predecessors, (16956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:56,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 16956 transitions. [2024-11-08 18:57:56,947 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 16956 transitions. Word has length 95 [2024-11-08 18:57:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:56,948 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 16956 transitions. [2024-11-08 18:57:56,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:56,949 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 16956 transitions. [2024-11-08 18:57:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:56,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:56,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:56,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:57:56,951 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:56,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:56,952 INFO L85 PathProgramCache]: Analyzing trace with hash -149606643, now seen corresponding path program 1 times [2024-11-08 18:57:56,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:56,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459504217] [2024-11-08 18:57:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:57,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:57,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459504217] [2024-11-08 18:57:57,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459504217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:57,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:57,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:57,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076806311] [2024-11-08 18:57:57,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:57,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:57,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:57,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:57,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:57,075 INFO L87 Difference]: Start difference. First operand 11512 states and 16956 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:57,490 INFO L93 Difference]: Finished difference Result 29116 states and 42878 transitions. [2024-11-08 18:57:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:57,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:57,544 INFO L225 Difference]: With dead ends: 29116 [2024-11-08 18:57:57,544 INFO L226 Difference]: Without dead ends: 19930 [2024-11-08 18:57:57,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:57,562 INFO L432 NwaCegarLoop]: 1668 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1795 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 [2024-11-08 18:57:57,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1795 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:57,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2024-11-08 18:57:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 19928. [2024-11-08 18:57:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 19926 states have (on average 1.4579945799457994) internal successors, (29052), 19927 states have internal predecessors, (29052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 29052 transitions. [2024-11-08 18:57:58,500 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 29052 transitions. Word has length 95 [2024-11-08 18:57:58,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:58,501 INFO L471 AbstractCegarLoop]: Abstraction has 19928 states and 29052 transitions. [2024-11-08 18:57:58,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 29052 transitions. [2024-11-08 18:57:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:57:58,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:58,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:58,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:57:58,504 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:58,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:58,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1380103667, now seen corresponding path program 1 times [2024-11-08 18:57:58,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:58,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756240955] [2024-11-08 18:57:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:58,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:58,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:58,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756240955] [2024-11-08 18:57:58,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756240955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:58,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:58,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:58,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266467053] [2024-11-08 18:57:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:58,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:58,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:58,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:58,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:58,644 INFO L87 Difference]: Start difference. First operand 19928 states and 29052 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:57:59,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:59,450 INFO L93 Difference]: Finished difference Result 53596 states and 77822 transitions. [2024-11-08 18:57:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:57:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:59,549 INFO L225 Difference]: With dead ends: 53596 [2024-11-08 18:57:59,549 INFO L226 Difference]: Without dead ends: 35994 [2024-11-08 18:57:59,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:59,578 INFO L432 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 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 [2024-11-08 18:57:59,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35994 states. [2024-11-08 18:58:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35994 to 35992. [2024-11-08 18:58:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.4367324256737983) internal successors, (51708), 35991 states have internal predecessors, (51708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 51708 transitions. [2024-11-08 18:58:01,199 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 51708 transitions. Word has length 95 [2024-11-08 18:58:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:01,200 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 51708 transitions. [2024-11-08 18:58:01,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 51708 transitions. [2024-11-08 18:58:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 18:58:01,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:01,202 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:01,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:58:01,203 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:01,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:01,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1038435845, now seen corresponding path program 1 times [2024-11-08 18:58:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:01,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883711402] [2024-11-08 18:58:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:01,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:01,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883711402] [2024-11-08 18:58:01,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883711402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:01,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180269491] [2024-11-08 18:58:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:01,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:01,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:01,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:01,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:58:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:01,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:58:01,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:01,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:01,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180269491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:01,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:58:01,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 18:58:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524918112] [2024-11-08 18:58:01,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:01,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:58:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:01,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:58:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:58:01,834 INFO L87 Difference]: Start difference. First operand 35992 states and 51708 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:08,271 INFO L93 Difference]: Finished difference Result 40500 states and 58209 transitions. [2024-11-08 18:58:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:58:08,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 18:58:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:08,351 INFO L225 Difference]: With dead ends: 40500 [2024-11-08 18:58:08,351 INFO L226 Difference]: Without dead ends: 38245 [2024-11-08 18:58:08,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:58:08,362 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 733 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:08,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1708 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-08 18:58:08,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38245 states. [2024-11-08 18:58:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38245 to 38245. [2024-11-08 18:58:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38245 states, 38243 states have (on average 1.428732055539576) internal successors, (54639), 38244 states have internal predecessors, (54639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:09,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38245 states to 38245 states and 54639 transitions. [2024-11-08 18:58:09,925 INFO L78 Accepts]: Start accepts. Automaton has 38245 states and 54639 transitions. Word has length 95 [2024-11-08 18:58:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:09,926 INFO L471 AbstractCegarLoop]: Abstraction has 38245 states and 54639 transitions. [2024-11-08 18:58:09,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 38245 states and 54639 transitions. [2024-11-08 18:58:09,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 18:58:09,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:09,928 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:09,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:58:10,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_150e5a8c-a415-4700-8c3e-948d396652e9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 18:58:10,134 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:10,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:10,135 INFO L85 PathProgramCache]: Analyzing trace with hash -878106860, now seen corresponding path program 1 times [2024-11-08 18:58:10,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:10,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26183593] [2024-11-08 18:58:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:10,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:10,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26183593] [2024-11-08 18:58:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26183593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:10,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:10,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:58:10,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597179397] [2024-11-08 18:58:10,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:10,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:10,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:10,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:10,728 INFO L87 Difference]: Start difference. First operand 38245 states and 54639 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:18,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:18,996 INFO L93 Difference]: Finished difference Result 43504 states and 61728 transitions. [2024-11-08 18:58:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:18,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-08 18:58:18,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:19,041 INFO L225 Difference]: With dead ends: 43504 [2024-11-08 18:58:19,041 INFO L226 Difference]: Without dead ends: 38996 [2024-11-08 18:58:19,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:58:19,051 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 2511 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 5487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:19,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 405 Invalid, 5487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-08 18:58:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38996 states. [2024-11-08 18:58:20,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38996 to 38996. [2024-11-08 18:58:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38996 states, 38994 states have (on average 1.4177052879930245) internal successors, (55282), 38995 states have internal predecessors, (55282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38996 states to 38996 states and 55282 transitions. [2024-11-08 18:58:20,211 INFO L78 Accepts]: Start accepts. Automaton has 38996 states and 55282 transitions. Word has length 101 [2024-11-08 18:58:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:20,212 INFO L471 AbstractCegarLoop]: Abstraction has 38996 states and 55282 transitions. [2024-11-08 18:58:20,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 38996 states and 55282 transitions. [2024-11-08 18:58:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:58:20,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:20,223 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:20,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:58:20,223 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:20,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:20,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1461207229, now seen corresponding path program 1 times [2024-11-08 18:58:20,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:20,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258888063] [2024-11-08 18:58:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:58:20,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:20,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258888063] [2024-11-08 18:58:20,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258888063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:20,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:20,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:58:20,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826184790] [2024-11-08 18:58:20,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:20,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:58:20,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:20,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:58:20,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:20,693 INFO L87 Difference]: Start difference. First operand 38996 states and 55282 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:27,570 INFO L93 Difference]: Finished difference Result 304998 states and 437371 transitions. [2024-11-08 18:58:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:58:27,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-08 18:58:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:27,990 INFO L225 Difference]: With dead ends: 304998 [2024-11-08 18:58:27,990 INFO L226 Difference]: Without dead ends: 281444 [2024-11-08 18:58:28,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:58:28,072 INFO L432 NwaCegarLoop]: 1703 mSDtfsCounter, 11721 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11721 SdHoareTripleChecker+Valid, 5274 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:28,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11721 Valid, 5274 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:58:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281444 states. [2024-11-08 18:58:33,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281444 to 67668. [2024-11-08 18:58:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67668 states, 67666 states have (on average 1.4204179351520705) internal successors, (96114), 67667 states have internal predecessors, (96114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67668 states to 67668 states and 96114 transitions. [2024-11-08 18:58:33,194 INFO L78 Accepts]: Start accepts. Automaton has 67668 states and 96114 transitions. Word has length 121 [2024-11-08 18:58:33,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:33,195 INFO L471 AbstractCegarLoop]: Abstraction has 67668 states and 96114 transitions. [2024-11-08 18:58:33,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 67668 states and 96114 transitions. [2024-11-08 18:58:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:58:33,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:33,210 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:33,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:58:33,210 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:33,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash 851779651, now seen corresponding path program 1 times [2024-11-08 18:58:33,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:33,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873907735] [2024-11-08 18:58:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:58:33,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:33,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873907735] [2024-11-08 18:58:33,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873907735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:33,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:33,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:58:33,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042171860] [2024-11-08 18:58:33,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:33,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:58:33,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:33,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:58:33,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:33,652 INFO L87 Difference]: Start difference. First operand 67668 states and 96114 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:43,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:43,111 INFO L93 Difference]: Finished difference Result 338662 states and 485499 transitions. [2024-11-08 18:58:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:58:43,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-08 18:58:43,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:43,584 INFO L225 Difference]: With dead ends: 338662 [2024-11-08 18:58:43,584 INFO L226 Difference]: Without dead ends: 304996 [2024-11-08 18:58:43,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:58:43,653 INFO L432 NwaCegarLoop]: 1702 mSDtfsCounter, 11721 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11721 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:43,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11721 Valid, 5248 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:58:43,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304996 states. [2024-11-08 18:58:50,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304996 to 113108. [2024-11-08 18:58:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113108 states, 113106 states have (on average 1.421268544551129) internal successors, (160754), 113107 states have internal predecessors, (160754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113108 states to 113108 states and 160754 transitions. [2024-11-08 18:58:50,624 INFO L78 Accepts]: Start accepts. Automaton has 113108 states and 160754 transitions. Word has length 121 [2024-11-08 18:58:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:50,625 INFO L471 AbstractCegarLoop]: Abstraction has 113108 states and 160754 transitions. [2024-11-08 18:58:50,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 113108 states and 160754 transitions. [2024-11-08 18:58:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:58:50,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:50,643 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:50,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:58:50,644 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:50,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:50,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1338203581, now seen corresponding path program 1 times [2024-11-08 18:58:50,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:50,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869821851] [2024-11-08 18:58:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:50,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 18:58:51,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:51,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869821851] [2024-11-08 18:58:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869821851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:51,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:51,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:58:51,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601780593] [2024-11-08 18:58:51,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:51,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:58:51,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:58:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:51,091 INFO L87 Difference]: Start difference. First operand 113108 states and 160754 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)