/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=0.2 --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 11:26:29,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:26:29,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:26:29,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:26:29,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:26:29,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:26:29,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:26:29,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:26:29,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:26:29,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:26:29,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:26:29,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:26:29,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:26:29,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:26:29,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:26:29,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:26:29,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:26:29,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:26:29,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:26:29,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:26:29,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:26:29,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:26:29,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:26:29,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:26:29,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:26:29,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:26:29,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:26:29,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:26:29,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:26:29,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:26:29,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:26:29,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:26:29,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:26:29,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:26:29,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:26:29,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:26:29,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:26:29,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:26:29,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:26:29,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:26:29,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:26:29,493 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 11:26:29,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:26:29,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:26:29,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:26:29,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:26:29,530 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:26:29,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:26:29,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:26:29,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:26:29,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:26:29,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:26:29,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:26:29,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:26:29,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:26:29,532 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:26:29,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:26:29,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:26:29,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:26:29,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:26:29,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:26:29,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:26:29,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:26:29,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:26:29,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:26:29,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:26:29,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:26:29,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:26:29,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:26:29,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:26:29,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:26:29,535 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 11:26:30,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:26:30,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:26:30,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:26:30,034 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:26:30,034 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:26:30,035 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 11:26:30,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/350aa2bfa/3c361f76046247fe8665b3323185360a/FLAGc92d32f00 [2020-09-25 11:26:30,693 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:26:30,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 11:26:30,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/350aa2bfa/3c361f76046247fe8665b3323185360a/FLAGc92d32f00 [2020-09-25 11:26:31,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/350aa2bfa/3c361f76046247fe8665b3323185360a [2020-09-25 11:26:31,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:26:31,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:26:31,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:26:31,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:26:31,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:26:31,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f159ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31, skipping insertion in model container [2020-09-25 11:26:31,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:26:31,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:26:31,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:26:31,390 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:26:31,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:26:31,558 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:26:31,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31 WrapperNode [2020-09-25 11:26:31,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:26:31,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:26:31,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:26:31,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:26:31,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (1/1) ... [2020-09-25 11:26:31,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:26:31,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:26:31,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:26:31,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:26:31,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (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 11:26:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:26:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:26:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 11:26:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-09-25 11:26:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-25 11:26:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-25 11:26:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-25 11:26:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-25 11:26:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-25 11:26:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 11:26:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 11:26:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 11:26:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 11:26:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 11:26:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 11:26:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 11:26:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 11:26:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 11:26:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 11:26:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 11:26:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 11:26:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:26:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:26:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:26:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 11:26:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-09-25 11:26:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-25 11:26:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-25 11:26:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-25 11:26:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-25 11:26:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-25 11:26:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 11:26:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 11:26:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 11:26:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 11:26:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 11:26:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 11:26:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:26:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:26:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:26:32,317 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L209: ~c_dr_st~0 := 2; [2020-09-25 11:26:32,317 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: ~c_dr_pc~0 := 2; [2020-09-25 11:26:32,317 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~a_t~0 := ~a~0; [2020-09-25 11:26:32,318 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2020-09-25 11:26:32,318 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-09-25 11:26:32,353 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:26:32,353 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 11:26:32,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:26:32 BoogieIcfgContainer [2020-09-25 11:26:32,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:26:32,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:26:32,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:26:32,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:26:32,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:26:31" (1/3) ... [2020-09-25 11:26:32,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580d12f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:26:32, skipping insertion in model container [2020-09-25 11:26:32,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:31" (2/3) ... [2020-09-25 11:26:32,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580d12f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:26:32, skipping insertion in model container [2020-09-25 11:26:32,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:26:32" (3/3) ... [2020-09-25 11:26:32,372 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-09-25 11:26:32,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:26:32,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:26:32,420 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:26:32,456 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:26:32,456 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:26:32,457 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:26:32,457 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:26:32,457 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:26:32,457 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:26:32,457 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:26:32,458 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:26:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2020-09-25 11:26:32,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 11:26:32,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:32,506 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 11:26:32,506 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:32,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:32,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1849744024, now seen corresponding path program 1 times [2020-09-25 11:26:32,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:32,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262726175] [2020-09-25 11:26:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:32,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:33,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:33,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:34,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:34,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:35,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:37,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:37,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 11:26:37,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:26:37,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 11:26:37,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:37,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:26:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:26:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 11:26:37,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:26:38,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 11:26:38,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:26:38,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:26:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:26:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:38,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:26:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:26:38,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:26:38,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:26:38,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 11:26:38,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:26:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:26:38,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:26:38,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:26:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:26:38,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 11:26:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:38,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:26:38,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:26:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:26:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:26:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:38,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 11:26:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 11:26:38,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:26:38,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 11:26:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:26:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:26:38,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:26:38,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:38,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:26:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:26:38,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:26:38,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:26:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:38,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:26:38,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:38,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 11:26:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:38,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:38,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:38,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:38,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:26:38,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:38,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:26:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:38,745 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 11:26:38,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262726175] [2020-09-25 11:26:38,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:26:38,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:26:38,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56417534] [2020-09-25 11:26:38,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:26:38,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:26:38,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:26:38,802 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 11 states. [2020-09-25 11:26:39,357 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-09-25 11:26:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:46,526 INFO L93 Difference]: Finished difference Result 1202 states and 1693 transitions. [2020-09-25 11:26:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-25 11:26:46,532 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 132 [2020-09-25 11:26:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:46,568 INFO L225 Difference]: With dead ends: 1202 [2020-09-25 11:26:46,568 INFO L226 Difference]: Without dead ends: 972 [2020-09-25 11:26:46,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=679, Invalid=2183, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 11:26:46,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-09-25 11:26:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 446. [2020-09-25 11:26:46,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-25 11:26:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 541 transitions. [2020-09-25 11:26:46,824 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 541 transitions. Word has length 132 [2020-09-25 11:26:46,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:46,829 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 541 transitions. [2020-09-25 11:26:46,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:26:46,830 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 541 transitions. [2020-09-25 11:26:46,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 11:26:46,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:46,845 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, 1] [2020-09-25 11:26:46,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:26:46,846 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:46,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:46,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1507822815, now seen corresponding path program 1 times [2020-09-25 11:26:46,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:46,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282700508] [2020-09-25 11:26:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:47,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:47,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:47,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:48,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-25 11:26:50,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:26:50,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3591 [2020-09-25 11:26:50,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:26:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 11:26:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 11:26:50,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 11:26:50,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:26:50,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:50,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:26:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:26:50,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:26:50,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:26:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:26:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:26:50,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:26:50,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:26:50,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 11:26:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:50,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:26:50,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:26:50,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:50,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:26:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:50,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:26:50,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:50,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 11:26:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 11:26:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:26:50,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 11:26:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:26:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:26:50,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:26:50,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:50,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:26:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:26:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:26:50,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:50,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:26:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:50,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:26:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 11:26:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:50,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:50,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:50,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:50,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:26:50,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:50,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:26:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:50,878 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 11:26:50,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282700508] [2020-09-25 11:26:50,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:26:50,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:26:50,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783580367] [2020-09-25 11:26:50,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:26:50,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:50,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:26:50,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:26:50,882 INFO L87 Difference]: Start difference. First operand 446 states and 541 transitions. Second operand 8 states. [2020-09-25 11:26:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:54,297 INFO L93 Difference]: Finished difference Result 1608 states and 2185 transitions. [2020-09-25 11:26:54,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 11:26:54,297 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-25 11:26:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:54,307 INFO L225 Difference]: With dead ends: 1608 [2020-09-25 11:26:54,307 INFO L226 Difference]: Without dead ends: 1218 [2020-09-25 11:26:54,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2020-09-25 11:26:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-09-25 11:26:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 830. [2020-09-25 11:26:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-09-25 11:26:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1018 transitions. [2020-09-25 11:26:54,391 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1018 transitions. Word has length 133 [2020-09-25 11:26:54,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:54,392 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 1018 transitions. [2020-09-25 11:26:54,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:26:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1018 transitions. [2020-09-25 11:26:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:26:54,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:54,396 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 11:26:54,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:26:54,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:54,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:54,396 INFO L82 PathProgramCache]: Analyzing trace with hash 346418800, now seen corresponding path program 1 times [2020-09-25 11:26:54,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:54,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966255967] [2020-09-25 11:26:54,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:54,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:54,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:55,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:55,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:55,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:55,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:56,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:58,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:58,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 11:26:58,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:26:58,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4529 [2020-09-25 11:26:58,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:58,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:58,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:26:58,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 11:26:58,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 11:26:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 11:26:59,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:26:59,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:59,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:26:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:26:59,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:26:59,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:26:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:26:59,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:26:59,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:59,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 11:26:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:59,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:26:59,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:26:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:26:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:59,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:26:59,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:59,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:59,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 11:26:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 11:26:59,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:26:59,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:26:59,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:26:59,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 11:26:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:26:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:26:59,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:26:59,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:26:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:26:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:26:59,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:26:59,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:26:59,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:26:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:59,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:26:59,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:59,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:59,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 11:26:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:59,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:26:59,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:26:59,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:26:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:26:59,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-25 11:26:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:26:59,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:59,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:26:59,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:26:59,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:26:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:59,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:59,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:59,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:26:59,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:26:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:26:59,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:59,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:26:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:59,583 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 11:26:59,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966255967] [2020-09-25 11:26:59,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:26:59,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:26:59,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393802899] [2020-09-25 11:26:59,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:26:59,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:59,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:26:59,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:26:59,588 INFO L87 Difference]: Start difference. First operand 830 states and 1018 transitions. Second operand 10 states. [2020-09-25 11:27:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:27:06,557 INFO L93 Difference]: Finished difference Result 3483 states and 5381 transitions. [2020-09-25 11:27:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 11:27:06,558 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 11:27:06,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:27:06,579 INFO L225 Difference]: With dead ends: 3483 [2020-09-25 11:27:06,580 INFO L226 Difference]: Without dead ends: 2710 [2020-09-25 11:27:06,588 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 11:27:06,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2020-09-25 11:27:06,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1692. [2020-09-25 11:27:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1692 states. [2020-09-25 11:27:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2163 transitions. [2020-09-25 11:27:06,775 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2163 transitions. Word has length 161 [2020-09-25 11:27:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:27:06,777 INFO L479 AbstractCegarLoop]: Abstraction has 1692 states and 2163 transitions. [2020-09-25 11:27:06,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:27:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2163 transitions. [2020-09-25 11:27:06,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 11:27:06,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:27:06,782 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 11:27:06,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:27:06,782 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:27:06,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:27:06,783 INFO L82 PathProgramCache]: Analyzing trace with hash 160819506, now seen corresponding path program 1 times [2020-09-25 11:27:06,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:27:06,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428922647] [2020-09-25 11:27:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:27:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:06,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:07,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:07,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 11:27:08,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:27:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1199 [2020-09-25 11:27:08,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:27:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-25 11:27:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 11:27:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:27:08,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:27:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 11:27:08,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:27:08,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:27:08,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:27:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:27:08,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:27:08,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:27:08,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:27:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:27:08,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:27:08,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 11:27:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:27:08,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:27:08,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:27:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:27:08,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:27:08,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 11:27:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 11:27:08,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:27:08,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:27:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:27:08,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:27:08,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:27:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:27:08,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:27:08,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:27:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:27:08,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:27:08,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 11:27:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:27:08,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:27:08,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:27:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:27:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:27:08,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:27:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:27:08,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:27:08,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:27:08,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:27:08,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:27:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:27:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:27:08,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:27:08,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:27:08,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:27:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:27:08,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:27:08,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:27:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:27:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:27:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:27:08,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:27:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 11:27:08,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428922647] [2020-09-25 11:27:08,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:27:08,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 11:27:08,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159174471] [2020-09-25 11:27:08,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:27:08,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:27:08,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:27:08,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:27:08,413 INFO L87 Difference]: Start difference. First operand 1692 states and 2163 transitions. Second operand 9 states. [2020-09-25 11:27:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:27:12,839 INFO L93 Difference]: Finished difference Result 3294 states and 4793 transitions. [2020-09-25 11:27:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 11:27:12,840 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-25 11:27:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:27:12,841 INFO L225 Difference]: With dead ends: 3294 [2020-09-25 11:27:12,841 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:27:12,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 11:27:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:27:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:27:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:27:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:27:12,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2020-09-25 11:27:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:27:12,861 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:27:12,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:27:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:27:12,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:27:12,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:27:12,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:27:13,790 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2020-09-25 11:27:14,584 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2020-09-25 11:27:14,765 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-09-25 11:27:15,016 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 11:27:15,130 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-09-25 11:27:15,295 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-09-25 11:27:15,470 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 11:27:15,642 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 11:27:15,828 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 11:27:15,962 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 11:27:16,131 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 11:27:16,409 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 11:27:16,685 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 11:27:16,845 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-09-25 11:27:16,993 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 11:27:17,136 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 11:27:17,277 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 11:27:17,444 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 11:27:17,663 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 11:27:17,774 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-09-25 11:27:18,393 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2020-09-25 11:27:18,643 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2020-09-25 11:27:19,720 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75