./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/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_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/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_252c1b73-b0a1-44d9-81e4-6dbbec304b69/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 fee106c2dd9d07a82140ad551bdb46665897289e1764fe2cd6376e02d0b80705 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:40:49,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:40:49,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:40:49,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:40:49,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:40:49,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:40:49,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:40:49,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:40:49,790 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:40:49,790 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:40:49,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:40:49,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:40:49,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:40:49,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:40:49,797 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:40:49,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:40:49,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:40:49,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:40:49,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:40:49,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:40:49,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:40:49,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:40:49,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:40:49,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:40:49,801 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:40:49,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:40:49,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:40:49,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:40:49,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:40:49,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:40:49,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:40:49,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:40:49,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:40:49,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:40:49,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:40:49,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:40:49,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:40:49,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:40:49,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:40:49,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:40:49,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:40:49,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:40:49,809 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_252c1b73-b0a1-44d9-81e4-6dbbec304b69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fee106c2dd9d07a82140ad551bdb46665897289e1764fe2cd6376e02d0b80705 [2024-11-08 17:40:50,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:40:50,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:40:50,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:40:50,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:40:50,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:40:50,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i Unable to find full path for "g++" [2024-11-08 17:40:52,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:40:52,792 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:40:52,793 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i [2024-11-08 17:40:52,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/data/d876dfe90/96ac3a68b1d8470a8b7f1dbe513ac1a9/FLAG00c05ddcf [2024-11-08 17:40:52,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/data/d876dfe90/96ac3a68b1d8470a8b7f1dbe513ac1a9 [2024-11-08 17:40:52,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:40:52,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:40:52,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:40:52,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:40:52,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:40:52,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:40:52" (1/1) ... [2024-11-08 17:40:52,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34869d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:52, skipping insertion in model container [2024-11-08 17:40:52,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:40:52" (1/1) ... [2024-11-08 17:40:52,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:40:53,217 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_252c1b73-b0a1-44d9-81e4-6dbbec304b69/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i[919,932] [2024-11-08 17:40:53,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:40:53,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:40:53,351 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_252c1b73-b0a1-44d9-81e4-6dbbec304b69/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i[919,932] [2024-11-08 17:40:53,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:40:53,424 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:40:53,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53 WrapperNode [2024-11-08 17:40:53,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:40:53,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:40:53,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:40:53,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:40:53,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,507 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192 [2024-11-08 17:40:53,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:40:53,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:40:53,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:40:53,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:40:53,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,568 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 17:40:53,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:40:53,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:40:53,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:40:53,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:40:53,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (1/1) ... [2024-11-08 17:40:53,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:40:53,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:40:53,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:40:53,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252c1b73-b0a1-44d9-81e4-6dbbec304b69/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:40:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:40:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:40:53,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:40:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:40:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:40:53,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:40:53,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:40:53,894 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:40:54,708 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 17:40:54,708 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:40:54,732 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:40:54,732 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:40:54,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:40:54 BoogieIcfgContainer [2024-11-08 17:40:54,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:40:54,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:40:54,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:40:54,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:40:54,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:40:52" (1/3) ... [2024-11-08 17:40:54,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e940881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:40:54, skipping insertion in model container [2024-11-08 17:40:54,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:53" (2/3) ... [2024-11-08 17:40:54,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e940881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:40:54, skipping insertion in model container [2024-11-08 17:40:54,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:40:54" (3/3) ... [2024-11-08 17:40:54,750 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-52.i [2024-11-08 17:40:54,778 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:40:54,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:40:54,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:40:54,876 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;@38fd740e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:40:54,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:40:54,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 62 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:40:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 17:40:54,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:54,904 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:54,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:54,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1426271709, now seen corresponding path program 1 times [2024-11-08 17:40:54,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:54,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735978516] [2024-11-08 17:40:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:54,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:40:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:40:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:40:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:40:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:40:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:40:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:40:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:40:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:40:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:40:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:40:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:40:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:40:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:40:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:40:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:40:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:40:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:40:55,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735978516] [2024-11-08 17:40:55,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735978516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:55,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:55,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:40:55,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983784308] [2024-11-08 17:40:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:55,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:40:55,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:55,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:40:55,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:40:55,755 INFO L87 Difference]: Start difference. First operand has 81 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 62 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:40:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:55,803 INFO L93 Difference]: Finished difference Result 155 states and 259 transitions. [2024-11-08 17:40:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:40:55,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-11-08 17:40:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:55,827 INFO L225 Difference]: With dead ends: 155 [2024-11-08 17:40:55,827 INFO L226 Difference]: Without dead ends: 77 [2024-11-08 17:40:55,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:40:55,838 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:55,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:40:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-08 17:40:55,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-08 17:40:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:40:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2024-11-08 17:40:55,934 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 117 transitions. Word has length 126 [2024-11-08 17:40:55,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:55,935 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 117 transitions. [2024-11-08 17:40:55,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:40:55,936 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 117 transitions. [2024-11-08 17:40:55,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 17:40:55,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:55,940 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:55,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:40:55,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:55,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:55,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1191039273, now seen corresponding path program 1 times [2024-11-08 17:40:55,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:55,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009621645] [2024-11-08 17:40:55,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:55,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:40:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:40:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:40:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:40:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:40:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:40:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:40:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:40:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:40:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:40:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:40:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:40:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:40:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:40:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:40:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:40:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:40:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:40:56,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:56,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009621645] [2024-11-08 17:40:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009621645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:56,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:56,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:40:56,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554903323] [2024-11-08 17:40:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:56,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:40:56,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:56,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:40:56,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:40:56,802 INFO L87 Difference]: Start difference. First operand 77 states and 117 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:40:56,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:56,981 INFO L93 Difference]: Finished difference Result 206 states and 317 transitions. [2024-11-08 17:40:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:40:56,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-11-08 17:40:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:56,989 INFO L225 Difference]: With dead ends: 206 [2024-11-08 17:40:56,993 INFO L226 Difference]: Without dead ends: 132 [2024-11-08 17:40:56,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:40:56,996 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 49 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:56,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 205 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:56,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-08 17:40:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 123. [2024-11-08 17:40:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:40:57,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 185 transitions. [2024-11-08 17:40:57,057 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 185 transitions. Word has length 126 [2024-11-08 17:40:57,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:57,058 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 185 transitions. [2024-11-08 17:40:57,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:40:57,062 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 185 transitions. [2024-11-08 17:40:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 17:40:57,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:57,066 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:57,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:40:57,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:57,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash -701877509, now seen corresponding path program 1 times [2024-11-08 17:40:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:57,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936094148] [2024-11-08 17:40:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:40:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:40:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:40:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:40:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:40:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:40:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:40:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:40:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:40:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:40:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:40:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:40:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:40:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:40:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:40:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:40:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:40:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:40:57,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:57,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936094148] [2024-11-08 17:40:57,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936094148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:57,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:57,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:40:57,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573866816] [2024-11-08 17:40:57,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:57,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:40:57,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:57,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:40:57,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:40:57,700 INFO L87 Difference]: Start difference. First operand 123 states and 185 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:40:57,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:57,771 INFO L93 Difference]: Finished difference Result 214 states and 326 transitions. [2024-11-08 17:40:57,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:40:57,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2024-11-08 17:40:57,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:57,775 INFO L225 Difference]: With dead ends: 214 [2024-11-08 17:40:57,775 INFO L226 Difference]: Without dead ends: 132 [2024-11-08 17:40:57,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 17:40:57,778 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 51 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:57,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 217 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:40:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-08 17:40:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 123. [2024-11-08 17:40:57,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 86 states have internal predecessors, (116), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:40:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 184 transitions. [2024-11-08 17:40:57,819 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 184 transitions. Word has length 127 [2024-11-08 17:40:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:57,824 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 184 transitions. [2024-11-08 17:40:57,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:40:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 184 transitions. [2024-11-08 17:40:57,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 17:40:57,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:57,828 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:57,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:40:57,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:57,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1559334017, now seen corresponding path program 1 times [2024-11-08 17:40:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:57,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982942349] [2024-11-08 17:40:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:40:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:40:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:40:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:40:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:40:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:40:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:40:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:40:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:40:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:40:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:40:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:40:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:40:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:40:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:40:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:40:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:40:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:40:58,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:58,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982942349] [2024-11-08 17:40:58,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982942349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:58,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:58,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:40:58,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443267844] [2024-11-08 17:40:58,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:58,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:40:58,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:40:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:40:58,272 INFO L87 Difference]: Start difference. First operand 123 states and 184 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:40:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:58,387 INFO L93 Difference]: Finished difference Result 271 states and 412 transitions. [2024-11-08 17:40:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:40:58,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2024-11-08 17:40:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:58,391 INFO L225 Difference]: With dead ends: 271 [2024-11-08 17:40:58,392 INFO L226 Difference]: Without dead ends: 197 [2024-11-08 17:40:58,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:40:58,394 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 74 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:58,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 214 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:58,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-08 17:40:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2024-11-08 17:40:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 140 states have internal predecessors, (192), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-08 17:40:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 294 transitions. [2024-11-08 17:40:58,439 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 294 transitions. Word has length 128 [2024-11-08 17:40:58,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:58,440 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 294 transitions. [2024-11-08 17:40:58,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:40:58,445 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 294 transitions. [2024-11-08 17:40:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 17:40:58,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:58,448 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:58,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:40:58,449 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:58,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1008087612, now seen corresponding path program 1 times [2024-11-08 17:40:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:58,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134828954] [2024-11-08 17:40:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:41:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:41:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:41:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:41:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:41:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:41:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:41:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:41:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:41:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:41:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:41:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:41:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:41:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:41:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:41:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:41:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:41:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:41:00,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134828954] [2024-11-08 17:41:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134828954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:00,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:00,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:00,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954350145] [2024-11-08 17:41:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:00,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:00,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:00,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:00,858 INFO L87 Difference]: Start difference. First operand 195 states and 294 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:01,048 INFO L93 Difference]: Finished difference Result 360 states and 546 transitions. [2024-11-08 17:41:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:01,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-11-08 17:41:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:01,054 INFO L225 Difference]: With dead ends: 360 [2024-11-08 17:41:01,057 INFO L226 Difference]: Without dead ends: 204 [2024-11-08 17:41:01,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:01,060 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 49 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:01,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 195 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:41:01,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-08 17:41:01,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 195. [2024-11-08 17:41:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 140 states have (on average 1.3642857142857143) internal successors, (191), 140 states have internal predecessors, (191), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-08 17:41:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 293 transitions. [2024-11-08 17:41:01,128 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 293 transitions. Word has length 130 [2024-11-08 17:41:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:01,129 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 293 transitions. [2024-11-08 17:41:01,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 293 transitions. [2024-11-08 17:41:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 17:41:01,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:01,134 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:01,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:41:01,137 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:01,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash -166747751, now seen corresponding path program 1 times [2024-11-08 17:41:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:01,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174727785] [2024-11-08 17:41:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:01,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:41:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:41:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:41:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:41:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:41:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:41:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:41:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:41:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:41:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:41:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:41:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:41:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:41:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:41:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:41:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:41:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:41:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:41:01,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:01,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174727785] [2024-11-08 17:41:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174727785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:01,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:01,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:41:01,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303510573] [2024-11-08 17:41:01,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:01,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:41:01,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:41:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:41:01,673 INFO L87 Difference]: Start difference. First operand 195 states and 293 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:01,830 INFO L93 Difference]: Finished difference Result 494 states and 752 transitions. [2024-11-08 17:41:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:41:01,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-08 17:41:01,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:01,835 INFO L225 Difference]: With dead ends: 494 [2024-11-08 17:41:01,835 INFO L226 Difference]: Without dead ends: 341 [2024-11-08 17:41:01,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 17:41:01,838 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 80 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:01,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 374 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:41:01,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-08 17:41:01,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2024-11-08 17:41:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 246 states have (on average 1.3821138211382114) internal successors, (340), 246 states have internal predecessors, (340), 85 states have call successors, (85), 5 states have call predecessors, (85), 5 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-08 17:41:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 510 transitions. [2024-11-08 17:41:01,906 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 510 transitions. Word has length 132 [2024-11-08 17:41:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:01,907 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 510 transitions. [2024-11-08 17:41:01,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:01,907 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 510 transitions. [2024-11-08 17:41:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 17:41:01,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:01,909 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:01,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:41:01,910 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:01,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1756480283, now seen corresponding path program 1 times [2024-11-08 17:41:01,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:01,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863855657] [2024-11-08 17:41:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:01,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:41:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:41:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:41:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:41:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:41:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:41:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:41:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:41:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:41:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:41:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:41:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:41:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:41:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:41:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:41:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:41:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:41:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:41:02,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:02,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863855657] [2024-11-08 17:41:02,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863855657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:02,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:02,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:41:02,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312501537] [2024-11-08 17:41:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:02,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:41:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:41:02,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:41:02,584 INFO L87 Difference]: Start difference. First operand 337 states and 510 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:02,824 INFO L93 Difference]: Finished difference Result 820 states and 1240 transitions. [2024-11-08 17:41:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:41:02,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-08 17:41:02,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:02,831 INFO L225 Difference]: With dead ends: 820 [2024-11-08 17:41:02,833 INFO L226 Difference]: Without dead ends: 532 [2024-11-08 17:41:02,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 17:41:02,836 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 80 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:02,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 318 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:41:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-08 17:41:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 524. [2024-11-08 17:41:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 396 states have (on average 1.378787878787879) internal successors, (546), 400 states have internal predecessors, (546), 117 states have call successors, (117), 10 states have call predecessors, (117), 10 states have return successors, (117), 113 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-08 17:41:02,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 780 transitions. [2024-11-08 17:41:02,973 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 780 transitions. Word has length 132 [2024-11-08 17:41:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:02,974 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 780 transitions. [2024-11-08 17:41:02,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:02,979 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 780 transitions. [2024-11-08 17:41:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 17:41:02,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:02,981 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:02,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:41:02,982 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:02,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2014645721, now seen corresponding path program 1 times [2024-11-08 17:41:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:02,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527978241] [2024-11-08 17:41:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:02,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:41:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:41:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:41:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 17:41:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:41:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 17:41:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:41:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:41:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:41:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:41:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:41:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:41:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:41:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:41:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:41:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:41:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:41:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:41:03,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:03,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527978241] [2024-11-08 17:41:03,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527978241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:03,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:03,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:41:03,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379828640] [2024-11-08 17:41:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:03,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:41:03,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:41:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:41:03,724 INFO L87 Difference]: Start difference. First operand 524 states and 780 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:04,008 INFO L93 Difference]: Finished difference Result 998 states and 1492 transitions. [2024-11-08 17:41:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:41:04,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-08 17:41:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:04,014 INFO L225 Difference]: With dead ends: 998 [2024-11-08 17:41:04,015 INFO L226 Difference]: Without dead ends: 530 [2024-11-08 17:41:04,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:41:04,018 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 73 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:04,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 405 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:41:04,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-08 17:41:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 524. [2024-11-08 17:41:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 396 states have (on average 1.3686868686868687) internal successors, (542), 400 states have internal predecessors, (542), 117 states have call successors, (117), 10 states have call predecessors, (117), 10 states have return successors, (117), 113 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-08 17:41:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 776 transitions. [2024-11-08 17:41:04,120 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 776 transitions. Word has length 132 [2024-11-08 17:41:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:04,121 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 776 transitions. [2024-11-08 17:41:04,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:41:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 776 transitions. [2024-11-08 17:41:04,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 17:41:04,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:04,124 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:04,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:41:04,125 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:04,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash -311910699, now seen corresponding path program 1 times [2024-11-08 17:41:04,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:04,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169777262] [2024-11-08 17:41:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:04,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat