/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:49:49,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:49:49,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:49:49,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:49:49,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:49:49,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:49:49,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:49:49,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:49:49,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:49:49,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:49:49,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:49:49,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:49:49,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:49:49,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:49:49,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:49:49,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:49:49,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:49:49,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:49:49,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:49:49,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:49:49,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:49:49,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:49:49,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:49:49,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:49:49,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:49:49,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:49:49,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:49:49,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:49:49,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:49:49,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:49:49,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:49:49,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:49:49,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:49:49,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:49:49,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:49:49,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:49:49,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:49:49,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:49:49,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:49:49,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:49:49,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:49:49,706 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 [2020-10-14 19:49:49,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:49:49,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:49:49,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:49:49,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:49:49,756 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:49:49,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:49:49,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:49:49,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:49:49,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:49:49,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:49:49,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:49:49,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:49:49,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:49:49,760 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:49:49,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:49:49,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:49:49,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:49:49,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:49:49,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:49:49,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:49:49,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:49:49,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:49:49,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:49:49,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:49:49,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:49:49,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:49:49,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:49:49,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:49:49,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:49:49,763 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:49:50,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:49:50,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:49:50,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:49:50,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:49:50,099 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:49:50,100 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label59.c [2020-10-14 19:49:50,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5cfa1fa7f/e3f336f415f94c07a681bfddbdd56d71/FLAGa17055902 [2020-10-14 19:49:51,164 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:49:51,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label59.c [2020-10-14 19:49:51,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5cfa1fa7f/e3f336f415f94c07a681bfddbdd56d71/FLAGa17055902 [2020-10-14 19:49:51,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5cfa1fa7f/e3f336f415f94c07a681bfddbdd56d71 [2020-10-14 19:49:51,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:49:51,537 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:49:51,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:49:51,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:49:51,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:49:51,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:51" (1/1) ... [2020-10-14 19:49:51,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a33c50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:51, skipping insertion in model container [2020-10-14 19:49:51,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:51" (1/1) ... [2020-10-14 19:49:51,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:49:51,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:49:54,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:49:54,507 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:49:55,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:49:55,814 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:49:55,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55 WrapperNode [2020-10-14 19:49:55,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:49:55,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:49:55,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:49:55,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:49:55,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:55,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:55,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:55,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:56,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:56,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:56,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (1/1) ... [2020-10-14 19:49:56,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:49:56,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:49:56,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:49:56,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:49:56,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (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 [2020-10-14 19:49:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:49:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:49:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:49:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:49:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:49:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:49:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 19:49:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-14 19:49:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-14 19:49:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-14 19:49:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:49:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:49:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:49:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:49:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:49:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 19:49:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-14 19:49:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-14 19:49:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-14 19:49:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:49:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:49:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:49:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:49:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:49:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:50:05,425 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:50:05,425 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:50:05,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:50:05 BoogieIcfgContainer [2020-10-14 19:50:05,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:50:05,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:50:05,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:50:05,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:50:05,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:49:51" (1/3) ... [2020-10-14 19:50:05,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33dabc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:50:05, skipping insertion in model container [2020-10-14 19:50:05,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:55" (2/3) ... [2020-10-14 19:50:05,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33dabc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:50:05, skipping insertion in model container [2020-10-14 19:50:05,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:50:05" (3/3) ... [2020-10-14 19:50:05,455 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label59.c [2020-10-14 19:50:05,466 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:50:05,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:50:05,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:50:05,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:50:05,527 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:50:05,527 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:50:05,527 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:50:05,527 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:50:05,527 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:50:05,528 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:50:05,528 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:50:05,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-14 19:50:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1680 [2020-10-14 19:50:05,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:50:05,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:50:05,674 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:50:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:50:05,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1436661424, now seen corresponding path program 1 times [2020-10-14 19:50:05,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:50:05,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932192090] [2020-10-14 19:50:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:50:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:07,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:11,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:11,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1701 [2020-10-14 19:50:11,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5198 [2020-10-14 19:50:11,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:11,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 19:50:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:50:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1695 [2020-10-14 19:50:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:50:13,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:50:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:13,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:13,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:13,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:50:13,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 19:50:13,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:13,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:50:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:50:13,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:50:16,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932192090] [2020-10-14 19:50:16,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:50:16,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:50:16,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891850631] [2020-10-14 19:50:16,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:50:16,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:50:16,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:50:16,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:50:16,153 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 4 states. [2020-10-14 19:50:32,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:50:32,983 INFO L93 Difference]: Finished difference Result 6360 states and 11961 transitions. [2020-10-14 19:50:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:50:32,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1679 [2020-10-14 19:50:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:50:33,040 INFO L225 Difference]: With dead ends: 6360 [2020-10-14 19:50:33,040 INFO L226 Difference]: Without dead ends: 4074 [2020-10-14 19:50:33,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:50:33,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4074 states. [2020-10-14 19:50:33,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 4004. [2020-10-14 19:50:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4004 states. [2020-10-14 19:50:33,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 6504 transitions. [2020-10-14 19:50:33,254 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 6504 transitions. Word has length 1679 [2020-10-14 19:50:33,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:50:33,259 INFO L479 AbstractCegarLoop]: Abstraction has 4004 states and 6504 transitions. [2020-10-14 19:50:33,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:50:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 6504 transitions. [2020-10-14 19:50:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2020-10-14 19:50:33,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:50:33,520 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:50:33,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:50:33,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:50:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:50:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash 45826207, now seen corresponding path program 1 times [2020-10-14 19:50:33,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:50:33,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178312881] [2020-10-14 19:50:33,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:50:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:35,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:39,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:39,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1714 [2020-10-14 19:50:39,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:50:39,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5125 [2020-10-14 19:50:39,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:39,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 19:50:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:50:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1692 [2020-10-14 19:50:39,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:50:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:40,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:40,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:50:40,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:40,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:50:40,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:40,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:50:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:50:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:40,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:50:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:40,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:40,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:50:40,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:50:40,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:40,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:50:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:50:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:50:43,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178312881] [2020-10-14 19:50:43,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:50:43,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:50:43,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794595940] [2020-10-14 19:50:43,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:50:43,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:50:43,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:50:43,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:50:43,036 INFO L87 Difference]: Start difference. First operand 4004 states and 6504 transitions. Second operand 5 states. [2020-10-14 19:51:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:51:02,373 INFO L93 Difference]: Finished difference Result 11631 states and 19055 transitions. [2020-10-14 19:51:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:51:02,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1690 [2020-10-14 19:51:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:51:02,421 INFO L225 Difference]: With dead ends: 11631 [2020-10-14 19:51:02,421 INFO L226 Difference]: Without dead ends: 7633 [2020-10-14 19:51:02,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:51:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2020-10-14 19:51:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7603. [2020-10-14 19:51:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7603 states. [2020-10-14 19:51:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7603 states to 7603 states and 10950 transitions. [2020-10-14 19:51:02,662 INFO L78 Accepts]: Start accepts. Automaton has 7603 states and 10950 transitions. Word has length 1690 [2020-10-14 19:51:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:51:02,665 INFO L479 AbstractCegarLoop]: Abstraction has 7603 states and 10950 transitions. [2020-10-14 19:51:02,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:51:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7603 states and 10950 transitions. [2020-10-14 19:51:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1706 [2020-10-14 19:51:02,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:51:02,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:51:02,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:51:02,815 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:51:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:51:02,816 INFO L82 PathProgramCache]: Analyzing trace with hash 716055391, now seen corresponding path program 1 times [2020-10-14 19:51:02,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:51:02,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662890534] [2020-10-14 19:51:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:51:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:03,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:08,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:08,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1731 [2020-10-14 19:51:08,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:51:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5107 [2020-10-14 19:51:08,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:08,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 19:51:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 19:51:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1294 [2020-10-14 19:51:08,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:14,422 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 40 [2020-10-14 19:51:14,728 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 40 [2020-10-14 19:51:14,884 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 38 [2020-10-14 19:51:15,033 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-14 19:51:15,205 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-14 19:51:15,375 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-14 19:51:15,558 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2020-10-14 19:51:15,716 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 35 [2020-10-14 19:51:16,443 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 37 [2020-10-14 19:51:16,600 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2020-10-14 19:51:16,758 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-14 19:51:16,928 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2020-10-14 19:51:17,147 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 36 [2020-10-14 19:51:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:51:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:17,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:17,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:17,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:51:17,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:51:17,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:51:17,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:17,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:51:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:51:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:51:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:17,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:51:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:17,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:17,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:51:17,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:51:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:51:17,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:17,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:51:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:51:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:51:17,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:17,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:51:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:17,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:17,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:17,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:51:17,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:51:17,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 19:51:17,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:17,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:17,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:51:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:51:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:51:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 19:51:39,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662890534] [2020-10-14 19:51:39,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:51:39,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 19:51:39,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460940635] [2020-10-14 19:51:39,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 19:51:39,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:51:39,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 19:51:39,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2020-10-14 19:51:39,020 INFO L87 Difference]: Start difference. First operand 7603 states and 10950 transitions. Second operand 23 states. [2020-10-14 19:51:39,751 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-14 19:51:40,860 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-14 19:51:47,002 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-14 19:51:53,903 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-14 19:51:57,564 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-14 19:51:57,777 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-14 19:52:09,220 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-14 19:52:11,279 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-14 19:52:13,119 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-10-14 19:52:17,216 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-14 19:52:17,386 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-14 19:52:18,823 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-10-14 19:52:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:52:29,551 INFO L93 Difference]: Finished difference Result 16513 states and 24534 transitions. [2020-10-14 19:52:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 19:52:29,552 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1705 [2020-10-14 19:52:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:52:29,593 INFO L225 Difference]: With dead ends: 16513 [2020-10-14 19:52:29,593 INFO L226 Difference]: Without dead ends: 8916 [2020-10-14 19:52:29,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=212, Invalid=1428, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 19:52:29,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8916 states. [2020-10-14 19:52:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8916 to 8889. [2020-10-14 19:52:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8889 states. [2020-10-14 19:52:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8889 states to 8889 states and 12261 transitions. [2020-10-14 19:52:29,855 INFO L78 Accepts]: Start accepts. Automaton has 8889 states and 12261 transitions. Word has length 1705 [2020-10-14 19:52:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:52:29,858 INFO L479 AbstractCegarLoop]: Abstraction has 8889 states and 12261 transitions. [2020-10-14 19:52:29,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 19:52:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8889 states and 12261 transitions. [2020-10-14 19:52:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1706 [2020-10-14 19:52:29,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:52:29,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:52:29,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:52:29,916 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:52:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:52:29,917 INFO L82 PathProgramCache]: Analyzing trace with hash 345255447, now seen corresponding path program 1 times [2020-10-14 19:52:29,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:52:29,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292471294] [2020-10-14 19:52:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:52:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:30,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:30,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:30,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:33,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:35,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:35,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1729 [2020-10-14 19:52:35,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:52:35,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 19:52:35,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:35,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 19:52:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 19:52:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1694 [2020-10-14 19:52:35,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:52:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:52:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:35,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:35,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:52:35,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:52:35,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:52:35,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:35,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:52:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:52:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:52:35,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:52:35,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:52:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:35,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:35,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:35,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 19:52:35,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:52:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 19:52:35,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:35,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:52:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:52:35,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 19:52:35,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:52:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:52:38,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292471294] [2020-10-14 19:52:38,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:52:38,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:52:38,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746515932] [2020-10-14 19:52:38,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:52:38,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:52:38,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:52:38,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:52:38,653 INFO L87 Difference]: Start difference. First operand 8889 states and 12261 transitions. Second operand 6 states. [2020-10-14 19:53:12,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:53:12,409 INFO L93 Difference]: Finished difference Result 31839 states and 45831 transitions. [2020-10-14 19:53:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:53:12,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1705 [2020-10-14 19:53:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:53:12,493 INFO L225 Difference]: With dead ends: 31839 [2020-10-14 19:53:12,494 INFO L226 Difference]: Without dead ends: 22956 [2020-10-14 19:53:12,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:53:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22956 states. [2020-10-14 19:53:12,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22956 to 22948. [2020-10-14 19:53:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22948 states. [2020-10-14 19:53:13,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22948 states to 22948 states and 29744 transitions. [2020-10-14 19:53:13,015 INFO L78 Accepts]: Start accepts. Automaton has 22948 states and 29744 transitions. Word has length 1705 [2020-10-14 19:53:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:53:13,017 INFO L479 AbstractCegarLoop]: Abstraction has 22948 states and 29744 transitions. [2020-10-14 19:53:13,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:53:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 22948 states and 29744 transitions. [2020-10-14 19:53:13,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1720 [2020-10-14 19:53:13,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:53:13,112 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:53:13,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:53:13,114 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:53:13,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:53:13,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1477526753, now seen corresponding path program 1 times [2020-10-14 19:53:13,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:53:13,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9225775] [2020-10-14 19:53:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:53:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:53:13,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:53:13,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:53:18,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:53:18,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1743 [2020-10-14 19:53:18,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:53:18,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5148 [2020-10-14 19:53:18,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:53:18,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:53:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 19:53:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 19:53:18,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1231 [2020-10-14 19:53:18,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:53:21,493 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-10-14 19:53:21,619 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-10-14 19:53:21,741 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-10-14 19:53:21,866 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-10-14 19:53:21,998 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-10-14 19:53:22,166 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2020-10-14 19:53:22,338 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-14 19:53:22,496 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-10-14 19:53:22,634 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2020-10-14 19:53:22,838 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-10-14 19:53:22,984 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2020-10-14 19:53:23,114 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2020-10-14 19:53:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:53:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:53:23,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:53:23,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:53:23,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:53:23,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:53:23,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:53:23,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:53:23,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:53:23,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:53:23,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:53:23,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:53:23,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:53:24,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:53:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:53:24,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:53:24,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:53:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:53:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 19:53:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0