/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=0.1 --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 10:19:19,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:19:19,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:19:19,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:19:19,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:19:19,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:19:19,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:19:19,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:19:19,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:19:19,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:19:19,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:19:19,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:19:19,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:19:19,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:19:19,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:19:19,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:19:19,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:19:19,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:19:19,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:19:19,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:19:19,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:19:19,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:19:19,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:19:19,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:19:19,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:19:19,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:19:19,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:19:19,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:19:19,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:19:19,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:19:19,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:19:19,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:19:19,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:19:19,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:19:19,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:19:19,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:19:19,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:19:19,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:19:19,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:19:19,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:19:19,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:19:19,542 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 10:19:19,590 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:19:19,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:19:19,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:19:19,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:19:19,592 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:19:19,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:19:19,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:19:19,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:19:19,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:19:19,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:19:19,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:19:19,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:19:19,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:19:19,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:19:19,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:19:19,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:19:19,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:19:19,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:19:19,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:19:19,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:19:19,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:19:19,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:19:19,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:19:19,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:19:19,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:19:19,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:19:19,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:19:19,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:19:19,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:19:19,597 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:19:20,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:19:20,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:19:20,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:19:20,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:19:20,094 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:19:20,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 10:19:20,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/153478864/88037c6b9af747659366b28f15b612ea/FLAG1bd885dcd [2020-09-25 10:19:20,743 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:19:20,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 10:19:20,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/153478864/88037c6b9af747659366b28f15b612ea/FLAG1bd885dcd [2020-09-25 10:19:21,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/153478864/88037c6b9af747659366b28f15b612ea [2020-09-25 10:19:21,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:19:21,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:19:21,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:19:21,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:19:21,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:19:21,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218d3b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21, skipping insertion in model container [2020-09-25 10:19:21,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:19:21,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:19:21,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:19:21,445 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:19:21,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:19:21,613 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:19:21,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21 WrapperNode [2020-09-25 10:19:21,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:19:21,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:19:21,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:19:21,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:19:21,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (1/1) ... [2020-09-25 10:19:21,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:19:21,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:19:21,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:19:21,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:19:21,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (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 10:19:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:19:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:19:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 10:19:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-09-25 10:19:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-25 10:19:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-25 10:19:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-25 10:19:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-25 10:19:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-25 10:19:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 10:19:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 10:19:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 10:19:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 10:19:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 10:19:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 10:19:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 10:19:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 10:19:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 10:19:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 10:19:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 10:19:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 10:19:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:19:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:19:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:19:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 10:19:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-09-25 10:19:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-25 10:19:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-25 10:19:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-25 10:19:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-25 10:19:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-25 10:19:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 10:19:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 10:19:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 10:19:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 10:19:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 10:19:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 10:19:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 10:19:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 10:19:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 10:19:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 10:19:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 10:19:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 10:19:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:19:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:19:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:19:22,479 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L209: ~c_dr_st~0 := 2; [2020-09-25 10:19:22,479 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: ~c_dr_pc~0 := 2; [2020-09-25 10:19:22,479 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~a_t~0 := ~a~0; [2020-09-25 10:19:22,479 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2020-09-25 10:19:22,480 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-09-25 10:19:22,522 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:19:22,522 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 10:19:22,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:19:22 BoogieIcfgContainer [2020-09-25 10:19:22,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:19:22,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:19:22,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:19:22,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:19:22,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:19:21" (1/3) ... [2020-09-25 10:19:22,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c68c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:19:22, skipping insertion in model container [2020-09-25 10:19:22,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:19:21" (2/3) ... [2020-09-25 10:19:22,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c68c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:19:22, skipping insertion in model container [2020-09-25 10:19:22,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:19:22" (3/3) ... [2020-09-25 10:19:22,541 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-09-25 10:19:22,552 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:19:22,564 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:19:22,584 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:19:22,623 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:19:22,623 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:19:22,624 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:19:22,624 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:19:22,624 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:19:22,624 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:19:22,624 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:19:22,625 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:19:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2020-09-25 10:19:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 10:19:22,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:19:22,673 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 10:19:22,674 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:19:22,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:19:22,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1849744024, now seen corresponding path program 1 times [2020-09-25 10:19:22,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:19:22,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106393662] [2020-09-25 10:19:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:19:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:23,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:23,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:24,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:25,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:27,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:27,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 10:19:27,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:19:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 10:19:27,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:19:28,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:19:28,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 10:19:28,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:19:28,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:19:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 10:19:28,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:19:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:19:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:19:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 10:19:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:19:28,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:19:28,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:19:28,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:19:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:19:28,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:19:28,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:19:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 10:19:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:28,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:19:28,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:19:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:19:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:19:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:19:28,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 10:19:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 10:19:28,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:19:28,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 10:19:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:19:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:28,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:28,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:19:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:28,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:28,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:19:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:28,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:19:28,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:28,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 10:19:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:28,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:28,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:28,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:28,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:19:28,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:28,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:19:28,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:28,654 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 10:19:28,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106393662] [2020-09-25 10:19:28,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:19:28,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 10:19:28,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026850231] [2020-09-25 10:19:28,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:19:28,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:19:28,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:19:28,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:19:28,687 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 11 states. [2020-09-25 10:19:36,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:19:36,373 INFO L93 Difference]: Finished difference Result 1202 states and 1693 transitions. [2020-09-25 10:19:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-25 10:19:36,376 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 132 [2020-09-25 10:19:36,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:19:36,406 INFO L225 Difference]: With dead ends: 1202 [2020-09-25 10:19:36,406 INFO L226 Difference]: Without dead ends: 972 [2020-09-25 10:19:36,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=679, Invalid=2183, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 10:19:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-09-25 10:19:36,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 446. [2020-09-25 10:19:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-25 10:19:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 541 transitions. [2020-09-25 10:19:36,584 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 541 transitions. Word has length 132 [2020-09-25 10:19:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:19:36,585 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 541 transitions. [2020-09-25 10:19:36,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:19:36,585 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 541 transitions. [2020-09-25 10:19:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 10:19:36,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:19:36,591 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 10:19:36,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:19:36,591 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:19:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:19:36,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1507822815, now seen corresponding path program 1 times [2020-09-25 10:19:36,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:19:36,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786263236] [2020-09-25 10:19:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:19:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:36,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:36,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:37,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:37,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:38,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-25 10:19:40,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:19:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3575 [2020-09-25 10:19:40,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:19:40,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 10:19:40,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 10:19:40,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:19:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 10:19:40,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:19:40,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:40,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:40,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 10:19:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:19:40,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:19:40,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:19:40,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:19:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:19:40,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:19:40,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:19:40,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 10:19:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:19:40,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:19:40,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:19:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:40,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:19:40,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:40,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 10:19:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 10:19:40,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:19:40,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 10:19:40,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:19:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:40,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:40,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:19:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:40,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:40,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:19:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:40,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:19:40,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 10:19:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:40,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:40,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:19:40,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:40,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:19:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:40,601 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 10:19:40,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786263236] [2020-09-25 10:19:40,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:19:40,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:19:40,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410862572] [2020-09-25 10:19:40,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:19:40,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:19:40,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:19:40,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:19:40,606 INFO L87 Difference]: Start difference. First operand 446 states and 541 transitions. Second operand 8 states. [2020-09-25 10:19:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:19:43,955 INFO L93 Difference]: Finished difference Result 1608 states and 2185 transitions. [2020-09-25 10:19:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 10:19:43,956 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-25 10:19:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:19:43,971 INFO L225 Difference]: With dead ends: 1608 [2020-09-25 10:19:43,971 INFO L226 Difference]: Without dead ends: 1218 [2020-09-25 10:19:43,978 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 10:19:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-09-25 10:19:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 830. [2020-09-25 10:19:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-09-25 10:19:44,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1018 transitions. [2020-09-25 10:19:44,088 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1018 transitions. Word has length 133 [2020-09-25 10:19:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:19:44,089 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 1018 transitions. [2020-09-25 10:19:44,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:19:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1018 transitions. [2020-09-25 10:19:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 10:19:44,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:19:44,105 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 10:19:44,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:19:44,105 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:19:44,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:19:44,106 INFO L82 PathProgramCache]: Analyzing trace with hash 346418800, now seen corresponding path program 1 times [2020-09-25 10:19:44,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:19:44,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314641240] [2020-09-25 10:19:44,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:19:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:44,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:44,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:44,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:44,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:45,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:48,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:48,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 10:19:48,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:19:48,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4552 [2020-09-25 10:19:48,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:48,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:48,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:19:48,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 10:19:48,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 10:19:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:48,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:19:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:48,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:48,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:48,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 10:19:48,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:48,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:19:48,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:48,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:48,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:48,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 10:19:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:48,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:48,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:19:48,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:48,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:19:48,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:48,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:19:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:48,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:48,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:19:48,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:48,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:48,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:48,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 10:19:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:48,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:49,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:19:49,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:19:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:19:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:49,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:19:49,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 10:19:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 10:19:49,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:19:49,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:19:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:19:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 10:19:49,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:19:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:49,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:19:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:19:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:19:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:49,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:19:49,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:19:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:19:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:19:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 10:19:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:49,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:19:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:19:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:19:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-25 10:19:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:19:49,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:49,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:19:49,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:19:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:19:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:19:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:49,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:49,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:49,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:19:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:19:49,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:49,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:19:49,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:49,294 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 10:19:49,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314641240] [2020-09-25 10:19:49,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:19:49,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:19:49,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093985645] [2020-09-25 10:19:49,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:19:49,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:19:49,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:19:49,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:19:49,298 INFO L87 Difference]: Start difference. First operand 830 states and 1018 transitions. Second operand 10 states. [2020-09-25 10:19:56,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:19:56,454 INFO L93 Difference]: Finished difference Result 3483 states and 5381 transitions. [2020-09-25 10:19:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 10:19:56,455 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 10:19:56,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:19:56,476 INFO L225 Difference]: With dead ends: 3483 [2020-09-25 10:19:56,477 INFO L226 Difference]: Without dead ends: 2710 [2020-09-25 10:19:56,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 10:19:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2020-09-25 10:19:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1692. [2020-09-25 10:19:56,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1692 states. [2020-09-25 10:19:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2163 transitions. [2020-09-25 10:19:56,720 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2163 transitions. Word has length 161 [2020-09-25 10:19:56,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:19:56,723 INFO L479 AbstractCegarLoop]: Abstraction has 1692 states and 2163 transitions. [2020-09-25 10:19:56,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:19:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2163 transitions. [2020-09-25 10:19:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 10:19:56,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:19:56,730 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 10:19:56,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:19:56,731 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:19:56,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:19:56,731 INFO L82 PathProgramCache]: Analyzing trace with hash 160819506, now seen corresponding path program 1 times [2020-09-25 10:19:56,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:19:56,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345619886] [2020-09-25 10:19:56,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:19:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:56,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:56,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:57,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:57,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:57,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 10:19:57,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:19:57,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1218 [2020-09-25 10:19:57,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:57,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:57,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:19:57,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-25 10:19:57,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 10:19:57,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:19:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 10:19:58,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:19:58,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:19:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 10:19:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:19:58,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:19:58,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:19:58,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:19:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:19:58,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:58,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 10:19:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:19:58,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:19:58,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 10:19:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:58,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:19:58,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 10:19:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 10:19:58,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:19:58,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:19:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:58,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:58,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:19:58,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:19:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:58,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:19:58,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:19:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:19:58,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:19:58,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 10:19:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:58,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:19:58,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:19:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:19:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:19:58,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:19:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:19:58,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:19:58,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:58,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:19:58,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:19:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:19:58,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:19:58,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:19:58,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:19:58,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:19:58,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:19:58,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:19:58,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:19:58,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:19:58,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:19:58,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:19:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:19:58,318 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 10:19:58,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345619886] [2020-09-25 10:19:58,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:19:58,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:19:58,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656397364] [2020-09-25 10:19:58,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:19:58,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:19:58,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:19:58,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:19:58,323 INFO L87 Difference]: Start difference. First operand 1692 states and 2163 transitions. Second operand 9 states. [2020-09-25 10:20:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:20:03,041 INFO L93 Difference]: Finished difference Result 3294 states and 4793 transitions. [2020-09-25 10:20:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 10:20:03,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-25 10:20:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:20:03,043 INFO L225 Difference]: With dead ends: 3294 [2020-09-25 10:20:03,043 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 10:20:03,063 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 10:20:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 10:20:03,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 10:20:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 10:20:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 10:20:03,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2020-09-25 10:20:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:20:03,065 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 10:20:03,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:20:03,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 10:20:03,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 10:20:03,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:20:03,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 10:20:04,125 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2020-09-25 10:20:04,301 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 35 [2020-09-25 10:20:05,098 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2020-09-25 10:20:05,282 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-09-25 10:20:05,533 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 10:20:05,657 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-09-25 10:20:05,832 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-09-25 10:20:06,035 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 10:20:06,221 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 10:20:06,407 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 10:20:06,543 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 10:20:06,728 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 10:20:07,020 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 10:20:07,318 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 10:20:07,480 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-09-25 10:20:07,623 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 10:20:07,766 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 10:20:07,919 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 10:20:08,086 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2020-09-25 10:20:08,305 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2020-09-25 10:20:08,416 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-09-25 10:20:09,054 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2020-09-25 10:20:09,295 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2020-09-25 10:20:10,403 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75