/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:41:34,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:41:34,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:41:34,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:41:34,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:41:34,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:41:34,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:41:34,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:41:34,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:41:34,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:41:34,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:41:34,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:41:34,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:41:34,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:41:34,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:41:34,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:41:34,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:41:34,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:41:34,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:41:34,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:41:34,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:41:34,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:41:34,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:41:34,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:41:34,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:41:34,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:41:34,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:41:34,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:41:34,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:41:34,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:41:34,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:41:34,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:41:34,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:41:34,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:41:34,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:41:34,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:41:34,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:41:34,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:41:34,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:41:34,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:41:34,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:41:34,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:41:34,530 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:41:34,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:41:34,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:41:34,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:41:34,533 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:41:34,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:41:34,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:41:34,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:41:34,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:41:34,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:41:34,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:41:34,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:41:34,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:41:34,535 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:41:34,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:41:34,535 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:41:34,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:41:34,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:41:34,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:41:34,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:41:34,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:41:34,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:41:34,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:41:34,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:41:34,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:41:34,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:41:34,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:41:34,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:41:34,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:41:34,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:41:35,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:41:35,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:41:35,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:41:35,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:41:35,097 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:41:35,098 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 13:41:35,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4c81a907/3ee2530bff314043924e796ad97581bc/FLAG2b042dd0d [2020-09-25 13:41:35,692 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:41:35,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 13:41:35,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4c81a907/3ee2530bff314043924e796ad97581bc/FLAG2b042dd0d [2020-09-25 13:41:36,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4c81a907/3ee2530bff314043924e796ad97581bc [2020-09-25 13:41:36,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:41:36,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:41:36,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:41:36,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:41:36,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:41:36,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5a68f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36, skipping insertion in model container [2020-09-25 13:41:36,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:41:36,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:41:36,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:41:36,450 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:41:36,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:41:36,649 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:41:36,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36 WrapperNode [2020-09-25 13:41:36,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:41:36,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:41:36,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:41:36,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:41:36,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... [2020-09-25 13:41:36,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:41:36,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:41:36,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:41:36,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:41:36,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:41:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:41:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:41:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 13:41:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-09-25 13:41:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-25 13:41:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-25 13:41:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-25 13:41:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-25 13:41:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-25 13:41:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 13:41:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 13:41:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 13:41:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 13:41:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 13:41:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 13:41:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 13:41:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 13:41:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 13:41:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 13:41:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 13:41:36,796 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 13:41:36,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:41:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:41:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:41:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 13:41:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-09-25 13:41:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-25 13:41:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-25 13:41:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-25 13:41:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-25 13:41:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-25 13:41:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 13:41:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:41:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:41:37,417 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L209: ~c_dr_st~0 := 2; [2020-09-25 13:41:37,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: ~c_dr_pc~0 := 2; [2020-09-25 13:41:37,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~a_t~0 := ~a~0; [2020-09-25 13:41:37,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2020-09-25 13:41:37,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-09-25 13:41:37,450 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:41:37,450 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 13:41:37,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:41:37 BoogieIcfgContainer [2020-09-25 13:41:37,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:41:37,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:41:37,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:41:37,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:41:37,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:41:36" (1/3) ... [2020-09-25 13:41:37,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff214e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:41:37, skipping insertion in model container [2020-09-25 13:41:37,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:36" (2/3) ... [2020-09-25 13:41:37,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff214e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:41:37, skipping insertion in model container [2020-09-25 13:41:37,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:41:37" (3/3) ... [2020-09-25 13:41:37,470 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-09-25 13:41:37,482 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:41:37,494 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:41:37,519 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:41:37,556 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:41:37,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:41:37,556 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:41:37,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:41:37,557 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:41:37,557 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:41:37,557 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:41:37,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:41:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2020-09-25 13:41:37,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 13:41:37,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:37,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:37,610 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:37,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:37,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1849744024, now seen corresponding path program 1 times [2020-09-25 13:41:37,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:37,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665614697] [2020-09-25 13:41:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:38,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:39,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:39,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:40,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:42,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:42,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 13:41:42,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:41:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 13:41:42,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:42,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:42,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:41:42,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 13:41:42,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 13:41:42,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:41:43,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 13:41:43,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:41:43,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:41:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:41:43,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:41:43,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:41:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:41:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:41:43,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:41:43,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:41:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 13:41:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:41:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:41:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:41:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:41:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:41:43,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:41:43,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:41:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 13:41:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 13:41:43,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:41:43,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 13:41:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:41:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:41:43,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:43,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:43,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:43,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:41:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:41:43,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:43,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:41:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:41:43,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:41:43,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:41:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 13:41:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:43,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:43,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:41:43,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:43,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:41:43,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:43,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:41:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:41:43,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665614697] [2020-09-25 13:41:43,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:41:43,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:41:43,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349841969] [2020-09-25 13:41:43,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:41:43,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:43,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:41:43,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:41:43,510 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 8 states. [2020-09-25 13:41:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:41:47,510 INFO L93 Difference]: Finished difference Result 934 states and 1342 transitions. [2020-09-25 13:41:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 13:41:47,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-25 13:41:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:41:47,541 INFO L225 Difference]: With dead ends: 934 [2020-09-25 13:41:47,542 INFO L226 Difference]: Without dead ends: 711 [2020-09-25 13:41:47,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:41:47,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-09-25 13:41:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 426. [2020-09-25 13:41:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-25 13:41:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 511 transitions. [2020-09-25 13:41:47,708 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 511 transitions. Word has length 132 [2020-09-25 13:41:47,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:41:47,709 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 511 transitions. [2020-09-25 13:41:47,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:41:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 511 transitions. [2020-09-25 13:41:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 13:41:47,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:47,715 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:47,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:41:47,716 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:47,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1812300857, now seen corresponding path program 1 times [2020-09-25 13:41:47,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:47,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155542502] [2020-09-25 13:41:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:47,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:48,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:49,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:49,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:49,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:52,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:52,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 13:41:52,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:41:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 13:41:52,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:52,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:41:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:41:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-09-25 13:41:52,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:52,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:52,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:52,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 13:41:52,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:52,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:41:52,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:52,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:41:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:41:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:41:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:41:53,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:41:53,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:41:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:41:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:41:53,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:41:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:41:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 13:41:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:41:53,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:41:53,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:41:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 13:41:53,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:41:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:41:53,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:41:53,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:41:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 13:41:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 13:41:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:41:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 13:41:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:41:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:41:53,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:53,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:53,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:41:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:41:53,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:53,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:41:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:41:53,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:41:53,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:41:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 13:41:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:41:53,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:41:53,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:41:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:41:53,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-25 13:41:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:41:53,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:41:53,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:41:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:41:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:53,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:53,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:53,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:41:53,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:53,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:41:53,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:53,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:53,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:53,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:41:53,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 13:41:53,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155542502] [2020-09-25 13:41:53,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:41:53,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:41:53,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669780592] [2020-09-25 13:41:53,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:41:53,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:53,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:41:53,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:41:53,370 INFO L87 Difference]: Start difference. First operand 426 states and 511 transitions. Second operand 12 states. [2020-09-25 13:42:01,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:42:01,956 INFO L93 Difference]: Finished difference Result 1567 states and 2160 transitions. [2020-09-25 13:42:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-09-25 13:42:01,957 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 160 [2020-09-25 13:42:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:42:01,975 INFO L225 Difference]: With dead ends: 1567 [2020-09-25 13:42:01,975 INFO L226 Difference]: Without dead ends: 1564 [2020-09-25 13:42:01,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1000, Invalid=3830, Unknown=0, NotChecked=0, Total=4830 [2020-09-25 13:42:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2020-09-25 13:42:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1021. [2020-09-25 13:42:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-09-25 13:42:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1268 transitions. [2020-09-25 13:42:02,109 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1268 transitions. Word has length 160 [2020-09-25 13:42:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:42:02,110 INFO L479 AbstractCegarLoop]: Abstraction has 1021 states and 1268 transitions. [2020-09-25 13:42:02,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:42:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1268 transitions. [2020-09-25 13:42:02,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:42:02,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:42:02,119 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:42:02,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:42:02,122 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:42:02,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:42:02,122 INFO L82 PathProgramCache]: Analyzing trace with hash 346418800, now seen corresponding path program 1 times [2020-09-25 13:42:02,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:42:02,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875976462] [2020-09-25 13:42:02,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:42:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:02,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:02,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:02,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:03,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:04,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:06,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:06,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 13:42:06,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:42:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4591 [2020-09-25 13:42:06,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:06,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:42:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 13:42:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:42:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:06,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:42:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:06,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:06,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 13:42:06,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:06,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:42:06,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:06,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:42:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:42:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:06,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:06,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:42:06,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:06,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:42:06,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:06,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:06,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:42:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:06,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:06,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:06,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:42:06,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:06,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:42:06,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:06,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:42:06,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 13:42:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:06,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:06,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:06,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:42:06,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:42:06,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:06,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:42:06,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:42:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:42:07,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:42:07,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:42:07,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 13:42:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 13:42:07,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:42:07,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:42:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:42:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 13:42:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:42:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:42:07,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:42:07,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:07,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:07,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:42:07,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:42:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:42:07,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:42:07,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:07,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:42:07,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:42:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:42:07,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:42:07,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:42:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:42:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 13:42:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:42:07,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:42:07,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:42:07,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:42:07,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-25 13:42:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:42:07,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:42:07,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:42:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:42:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:07,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:07,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:42:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:07,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:42:07,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:07,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 13:42:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 13:42:07,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875976462] [2020-09-25 13:42:07,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:42:07,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:42:07,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900487060] [2020-09-25 13:42:07,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:42:07,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:42:07,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:42:07,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:42:07,264 INFO L87 Difference]: Start difference. First operand 1021 states and 1268 transitions. Second operand 10 states. [2020-09-25 13:42:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:42:13,438 INFO L93 Difference]: Finished difference Result 4282 states and 6672 transitions. [2020-09-25 13:42:13,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 13:42:13,439 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 13:42:13,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:42:13,470 INFO L225 Difference]: With dead ends: 4282 [2020-09-25 13:42:13,471 INFO L226 Difference]: Without dead ends: 3318 [2020-09-25 13:42:13,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 13:42:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2020-09-25 13:42:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2085. [2020-09-25 13:42:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-09-25 13:42:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2697 transitions. [2020-09-25 13:42:13,714 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2697 transitions. Word has length 161 [2020-09-25 13:42:13,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:42:13,716 INFO L479 AbstractCegarLoop]: Abstraction has 2085 states and 2697 transitions. [2020-09-25 13:42:13,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:42:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2697 transitions. [2020-09-25 13:42:13,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 13:42:13,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:42:13,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:42:13,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:42:13,725 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:42:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:42:13,725 INFO L82 PathProgramCache]: Analyzing trace with hash 160819506, now seen corresponding path program 1 times [2020-09-25 13:42:13,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:42:13,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239960298] [2020-09-25 13:42:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:42:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:13,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:13,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:14,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:14,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:14,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:42:14,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:42:14,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1187 [2020-09-25 13:42:14,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:14,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-09-25 13:42:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:42:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:42:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 13:42:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:42:15,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:42:15,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:42:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:42:15,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:42:15,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:42:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:42:15,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:42:15,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:42:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 13:42:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:42:15,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:42:15,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:42:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:42:15,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:42:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 13:42:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 13:42:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:42:15,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:42:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:42:15,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:42:15,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:42:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:42:15,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:42:15,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:42:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:42:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:42:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:42:15,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 13:42:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:42:15,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:42:15,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:42:15,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:42:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:42:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:42:15,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:42:15,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:42:15,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:15,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:42:15,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:42:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:15,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:15,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:42:15,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:42:15,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:42:15,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:42:15,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:42:15,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:42:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:42:15,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:42:15,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:42:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:42:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 13:42:15,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239960298] [2020-09-25 13:42:15,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:42:15,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:42:15,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767174385] [2020-09-25 13:42:15,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:42:15,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:42:15,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:42:15,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:42:15,273 INFO L87 Difference]: Start difference. First operand 2085 states and 2697 transitions. Second operand 9 states. [2020-09-25 13:42:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:42:20,675 INFO L93 Difference]: Finished difference Result 7211 states and 10728 transitions. [2020-09-25 13:42:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-25 13:42:20,676 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-25 13:42:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:42:20,719 INFO L225 Difference]: With dead ends: 7211 [2020-09-25 13:42:20,719 INFO L226 Difference]: Without dead ends: 5191 [2020-09-25 13:42:20,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=312, Invalid=878, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 13:42:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5191 states. [2020-09-25 13:42:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5191 to 3640. [2020-09-25 13:42:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3640 states. [2020-09-25 13:42:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 4683 transitions. [2020-09-25 13:42:21,221 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 4683 transitions. Word has length 163 [2020-09-25 13:42:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:42:21,222 INFO L479 AbstractCegarLoop]: Abstraction has 3640 states and 4683 transitions. [2020-09-25 13:42:21,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:42:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 4683 transitions. [2020-09-25 13:42:21,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 13:42:21,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:42:21,245 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:42:21,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:42:21,245 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:42:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:42:21,246 INFO L82 PathProgramCache]: Analyzing trace with hash -2005174565, now seen corresponding path program 1 times [2020-09-25 13:42:21,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:42:21,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001749348] [2020-09-25 13:42:21,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:42:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:42:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:21,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:21,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:22,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:42:22,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking...