/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem06_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:34:47,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:34:47,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:34:47,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:34:47,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:34:47,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:34:47,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:34:47,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:34:47,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:34:47,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:34:47,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:34:47,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:34:47,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:34:47,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:34:47,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:34:47,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:34:47,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:34:47,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:34:47,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:34:47,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:34:47,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:34:47,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:34:47,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:34:47,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:34:47,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:34:47,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:34:47,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:34:47,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:34:47,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:34:47,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:34:47,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:34:47,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:34:47,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:34:47,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:34:47,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:34:47,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:34:47,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:34:47,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:34:47,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:34:47,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:34:47,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:34:47,867 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 01:34:47,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:34:47,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:34:47,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:34:47,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:34:47,903 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:34:47,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:34:47,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:34:47,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:34:47,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:34:47,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:34:47,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:34:47,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:34:47,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:34:47,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:34:47,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:34:47,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:34:47,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:34:47,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:34:47,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:34:47,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:34:47,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:34:47,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:34:47,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:34:47,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:34:47,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:34:47,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:34:47,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:34:47,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:34:47,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:34:47,908 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:34:48,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:34:48,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:34:48,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:34:48,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:34:48,217 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:34:48,218 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label25.c [2020-10-14 01:34:48,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ae69f357/0a97ec967bf141b69179c69f18a18f43/FLAG017eab033 [2020-10-14 01:34:49,170 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:34:49,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label25.c [2020-10-14 01:34:49,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ae69f357/0a97ec967bf141b69179c69f18a18f43/FLAG017eab033 [2020-10-14 01:34:49,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ae69f357/0a97ec967bf141b69179c69f18a18f43 [2020-10-14 01:34:49,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:34:49,616 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:34:49,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:34:49,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:34:49,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:34:49,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:34:49" (1/1) ... [2020-10-14 01:34:49,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdab4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:49, skipping insertion in model container [2020-10-14 01:34:49,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:34:49" (1/1) ... [2020-10-14 01:34:49,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:34:49,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:34:51,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:34:51,890 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:34:52,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:34:53,032 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:34:53,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53 WrapperNode [2020-10-14 01:34:53,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:34:53,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:34:53,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:34:53,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:34:53,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (1/1) ... [2020-10-14 01:34:53,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:34:53,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:34:53,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:34:53,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:34:53,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (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 01:34:53,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:34:53,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:34:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:34:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:34:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:34:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:34:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 01:34:53,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:34:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:34:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:34:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:34:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:34:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 01:34:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:34:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:34:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:34:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:34:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:34:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:35:00,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:35:00,738 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:35:00,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:35:00 BoogieIcfgContainer [2020-10-14 01:35:00,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:35:00,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:35:00,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:35:00,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:35:00,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:34:49" (1/3) ... [2020-10-14 01:35:00,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43510dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:35:00, skipping insertion in model container [2020-10-14 01:35:00,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:34:53" (2/3) ... [2020-10-14 01:35:00,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43510dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:35:00, skipping insertion in model container [2020-10-14 01:35:00,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:35:00" (3/3) ... [2020-10-14 01:35:00,774 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label25.c [2020-10-14 01:35:00,785 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:35:00,795 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:35:00,810 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:35:00,841 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:35:00,842 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:35:00,842 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:35:00,842 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:35:00,842 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:35:00,843 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:35:00,843 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:35:00,843 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:35:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-14 01:35:00,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2020-10-14 01:35:00,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:35:00,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:00,947 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:35:00,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:35:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash -912420760, now seen corresponding path program 1 times [2020-10-14 01:35:00,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:35:00,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382872733] [2020-10-14 01:35:00,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:35:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:04,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:07,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:07,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1015 [2020-10-14 01:35:07,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:35:07,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5108 [2020-10-14 01:35:07,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:07,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:07,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 01:35:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:35:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1009 [2020-10-14 01:35:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 01:35:08,586 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:35:08,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:35:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:08,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:08,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:08,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:35:08,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:35:08,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 01:35:08,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:08,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:35:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:35:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:35:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:35:10,689 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 01:35:10,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382872733] [2020-10-14 01:35:10,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:35:10,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 01:35:10,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689472837] [2020-10-14 01:35:10,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 01:35:10,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:35:10,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 01:35:10,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 01:35:10,720 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 4 states. [2020-10-14 01:35:10,898 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:35:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:35:23,969 INFO L93 Difference]: Finished difference Result 3745 states and 6987 transitions. [2020-10-14 01:35:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:35:23,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 999 [2020-10-14 01:35:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:35:24,018 INFO L225 Difference]: With dead ends: 3745 [2020-10-14 01:35:24,018 INFO L226 Difference]: Without dead ends: 2366 [2020-10-14 01:35:24,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:35:24,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2020-10-14 01:35:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2345. [2020-10-14 01:35:24,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2345 states. [2020-10-14 01:35:24,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3864 transitions. [2020-10-14 01:35:24,217 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3864 transitions. Word has length 999 [2020-10-14 01:35:24,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:35:24,220 INFO L479 AbstractCegarLoop]: Abstraction has 2345 states and 3864 transitions. [2020-10-14 01:35:24,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 01:35:24,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3864 transitions. [2020-10-14 01:35:24,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2020-10-14 01:35:24,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:35:24,264 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:24,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:35:24,264 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:35:24,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:35:24,265 INFO L82 PathProgramCache]: Analyzing trace with hash -684193435, now seen corresponding path program 1 times [2020-10-14 01:35:24,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:35:24,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944022514] [2020-10-14 01:35:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:35:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:25,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:25,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:29,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:29,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1029 [2020-10-14 01:35:29,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:35:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 01:35:29,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:29,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:35:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:35:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 01:35:29,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 01:35:30,418 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:35:30,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:35:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:30,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:30,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:30,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:35:30,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:35:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 01:35:30,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:30,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:35:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:35:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:35:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 01:35:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:35:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:30,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:30,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:30,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 01:35:30,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:35:30,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 01:35:30,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:30,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:35:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:35:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 01:35:30,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:35:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:35:31,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944022514] [2020-10-14 01:35:31,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:35:31,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:35:31,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220163471] [2020-10-14 01:35:31,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:35:31,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:35:31,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:35:31,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:35:31,215 INFO L87 Difference]: Start difference. First operand 2345 states and 3864 transitions. Second operand 7 states. [2020-10-14 01:35:31,378 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:35:32,150 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 01:35:47,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:35:47,977 INFO L93 Difference]: Finished difference Result 6939 states and 11526 transitions. [2020-10-14 01:35:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:35:47,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1011 [2020-10-14 01:35:47,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:35:48,003 INFO L225 Difference]: With dead ends: 6939 [2020-10-14 01:35:48,004 INFO L226 Difference]: Without dead ends: 4600 [2020-10-14 01:35:48,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:35:48,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2020-10-14 01:35:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4536. [2020-10-14 01:35:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4536 states. [2020-10-14 01:35:48,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 6904 transitions. [2020-10-14 01:35:48,146 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 6904 transitions. Word has length 1011 [2020-10-14 01:35:48,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:35:48,146 INFO L479 AbstractCegarLoop]: Abstraction has 4536 states and 6904 transitions. [2020-10-14 01:35:48,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:35:48,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 6904 transitions. [2020-10-14 01:35:48,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2020-10-14 01:35:48,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:35:48,194 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:48,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:35:48,195 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:35:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:35:48,196 INFO L82 PathProgramCache]: Analyzing trace with hash -619559844, now seen corresponding path program 1 times [2020-10-14 01:35:48,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:35:48,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125237167] [2020-10-14 01:35:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:35:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:50,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:53,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:53,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1037 [2020-10-14 01:35:53,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:35:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 01:35:53,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:53,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:35:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:35:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 01:35:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:35:53,758 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:35:53,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:35:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:53,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:53,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:53,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:35:53,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:35:53,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:35:53,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:53,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:35:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:35:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:35:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:35:53,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:35:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:35:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:35:53,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:35:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 01:35:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:35:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 01:35:53,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:35:53,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:35:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:35:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:35:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 01:35:53,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:35:54,390 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:35:54,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125237167] [2020-10-14 01:35:54,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:35:54,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:35:54,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130047773] [2020-10-14 01:35:54,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:35:54,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:35:54,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:35:54,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:35:54,394 INFO L87 Difference]: Start difference. First operand 4536 states and 6904 transitions. Second operand 7 states. [2020-10-14 01:35:54,534 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:35:55,562 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:36:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:36:10,306 INFO L93 Difference]: Finished difference Result 13823 states and 21619 transitions. [2020-10-14 01:36:10,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:36:10,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1019 [2020-10-14 01:36:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:36:10,361 INFO L225 Difference]: With dead ends: 13823 [2020-10-14 01:36:10,361 INFO L226 Difference]: Without dead ends: 9293 [2020-10-14 01:36:10,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:36:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9293 states. [2020-10-14 01:36:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9293 to 9040. [2020-10-14 01:36:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9040 states. [2020-10-14 01:36:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9040 states to 9040 states and 12994 transitions. [2020-10-14 01:36:10,760 INFO L78 Accepts]: Start accepts. Automaton has 9040 states and 12994 transitions. Word has length 1019 [2020-10-14 01:36:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:36:10,761 INFO L479 AbstractCegarLoop]: Abstraction has 9040 states and 12994 transitions. [2020-10-14 01:36:10,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:36:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9040 states and 12994 transitions. [2020-10-14 01:36:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2020-10-14 01:36:10,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:36:10,810 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:10,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:36:10,811 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:36:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:36:10,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1378454563, now seen corresponding path program 1 times [2020-10-14 01:36:10,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:36:10,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099299822] [2020-10-14 01:36:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:36:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:11,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:16,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:16,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1064 [2020-10-14 01:36:16,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:36:16,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 01:36:16,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:16,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:36:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 01:36:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 01:36:16,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:36:16,419 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:36:16,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:36:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:16,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:16,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:36:16,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:16,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:36:16,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:16,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:36:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:36:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:36:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:36:16,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:36:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:16,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:16,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:16,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 01:36:16,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:16,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 01:36:16,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:16,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:16,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:36:16,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:36:16,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 01:36:16,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:36:16,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 01:36:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:16,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:16,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:16,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 01:36:16,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:16,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 01:36:16,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:16,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:16,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:36:16,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:36:16,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 01:36:16,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:36:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:36:17,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099299822] [2020-10-14 01:36:17,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:36:17,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:36:17,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421575988] [2020-10-14 01:36:17,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:36:17,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:36:17,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:36:17,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:36:17,402 INFO L87 Difference]: Start difference. First operand 9040 states and 12994 transitions. Second operand 7 states. [2020-10-14 01:36:17,531 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:36:19,968 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:36:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:36:34,815 INFO L93 Difference]: Finished difference Result 27596 states and 42098 transitions. [2020-10-14 01:36:34,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:36:34,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1044 [2020-10-14 01:36:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:36:34,924 INFO L225 Difference]: With dead ends: 27596 [2020-10-14 01:36:34,924 INFO L226 Difference]: Without dead ends: 18562 [2020-10-14 01:36:34,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:36:34,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18562 states. [2020-10-14 01:36:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18562 to 18275. [2020-10-14 01:36:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18275 states. [2020-10-14 01:36:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18275 states to 18275 states and 26423 transitions. [2020-10-14 01:36:35,459 INFO L78 Accepts]: Start accepts. Automaton has 18275 states and 26423 transitions. Word has length 1044 [2020-10-14 01:36:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:36:35,460 INFO L479 AbstractCegarLoop]: Abstraction has 18275 states and 26423 transitions. [2020-10-14 01:36:35,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:36:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 18275 states and 26423 transitions. [2020-10-14 01:36:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2020-10-14 01:36:35,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:36:35,543 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:35,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:36:35,543 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:36:35,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:36:35,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1460911508, now seen corresponding path program 1 times [2020-10-14 01:36:35,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:36:35,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206221629] [2020-10-14 01:36:35,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:36:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:35,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:40,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:40,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1091 [2020-10-14 01:36:40,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:36:40,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 01:36:40,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:40,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:36:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 01:36:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 01:36:40,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:36:41,026 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:36:41,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:36:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:41,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:41,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:36:41,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:41,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:36:41,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:41,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:41,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:36:41,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:36:41,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:36:41,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:36:41,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:36:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:41,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:41,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 01:36:41,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 01:36:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:41,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:36:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:36:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 01:36:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:36:41,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 01:36:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:41,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 01:36:41,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 01:36:41,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:41,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:36:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:36:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 01:36:41,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:36:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 01:36:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:36:41,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:36:41,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:36:41,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 01:36:41,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:36:41,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 01:36:41,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:36:41,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:36:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:36:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:36:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 01:36:41,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:36:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 81 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 01:36:42,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206221629] [2020-10-14 01:36:42,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:36:42,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 01:36:42,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075274] [2020-10-14 01:36:42,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 01:36:42,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:36:42,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 01:36:42,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 01:36:42,100 INFO L87 Difference]: Start difference. First operand 18275 states and 26423 transitions. Second operand 8 states. [2020-10-14 01:36:42,234 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:36:43,536 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 01:36:57,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:36:57,949 INFO L93 Difference]: Finished difference Result 55772 states and 87805 transitions. [2020-10-14 01:36:57,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:36:57,950 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1069 [2020-10-14 01:36:57,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:36:58,115 INFO L225 Difference]: With dead ends: 55772 [2020-10-14 01:36:58,116 INFO L226 Difference]: Without dead ends: 37503 [2020-10-14 01:36:58,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 01:36:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37503 states. [2020-10-14 01:36:59,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37503 to 37042. [2020-10-14 01:36:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37042 states. [2020-10-14 01:36:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37042 states to 37042 states and 54483 transitions. [2020-10-14 01:36:59,326 INFO L78 Accepts]: Start accepts. Automaton has 37042 states and 54483 transitions. Word has length 1069 [2020-10-14 01:36:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:36:59,326 INFO L479 AbstractCegarLoop]: Abstraction has 37042 states and 54483 transitions. [2020-10-14 01:36:59,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:36:59,327 INFO L276 IsEmpty]: Start isEmpty. Operand 37042 states and 54483 transitions. [2020-10-14 01:36:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2020-10-14 01:36:59,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:36:59,472 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:59,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:36:59,473 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:36:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:36:59,474 INFO L82 PathProgramCache]: Analyzing trace with hash 587153237, now seen corresponding path program 1 times [2020-10-14 01:36:59,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:36:59,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071617225] [2020-10-14 01:36:59,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:36:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:00,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:00,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:04,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:04,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1103 [2020-10-14 01:37:04,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:37:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 01:37:04,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:04,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:37:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:37:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 01:37:04,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:05,163 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:37:05,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:37:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:05,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:05,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:05,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:37:05,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:05,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:37:05,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:05,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:37:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:37:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:37:05,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:37:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:05,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:05,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:05,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 01:37:05,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:05,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-14 01:37:05,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:05,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:37:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:37:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 01:37:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:37:06,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071617225] [2020-10-14 01:37:06,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:37:06,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:37:06,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639728792] [2020-10-14 01:37:06,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:37:06,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:37:06,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:37:06,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:37:06,351 INFO L87 Difference]: Start difference. First operand 37042 states and 54483 transitions. Second operand 7 states. [2020-10-14 01:37:06,517 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 01:37:08,180 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:37:24,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:37:24,492 INFO L93 Difference]: Finished difference Result 93675 states and 142831 transitions. [2020-10-14 01:37:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:37:24,493 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1085 [2020-10-14 01:37:24,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:37:24,683 INFO L225 Difference]: With dead ends: 93675 [2020-10-14 01:37:24,683 INFO L226 Difference]: Without dead ends: 56639 [2020-10-14 01:37:24,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:37:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56639 states. [2020-10-14 01:37:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56639 to 55976. [2020-10-14 01:37:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55976 states. [2020-10-14 01:37:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55976 states to 55976 states and 82239 transitions. [2020-10-14 01:37:26,049 INFO L78 Accepts]: Start accepts. Automaton has 55976 states and 82239 transitions. Word has length 1085 [2020-10-14 01:37:26,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:37:26,050 INFO L479 AbstractCegarLoop]: Abstraction has 55976 states and 82239 transitions. [2020-10-14 01:37:26,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:37:26,050 INFO L276 IsEmpty]: Start isEmpty. Operand 55976 states and 82239 transitions. [2020-10-14 01:37:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1101 [2020-10-14 01:37:26,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:37:26,239 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:26,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:37:26,239 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:37:26,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:37:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1761387285, now seen corresponding path program 1 times [2020-10-14 01:37:26,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:37:26,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797465204] [2020-10-14 01:37:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:37:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:26,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:26,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:31,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:31,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1124 [2020-10-14 01:37:31,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:37:31,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-14 01:37:31,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:31,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:37:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 01:37:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 01:37:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:31,812 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:37:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:37:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:31,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:31,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:31,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:37:31,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:37:31,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:31,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:31,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:37:31,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:37:31,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:37:31,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:31,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:37:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:31,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:31,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:31,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 01:37:31,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:37:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:31,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:37:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:37:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:37:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:31,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 01:37:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:31,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:31,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:31,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 01:37:31,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:31,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 01:37:31,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:31,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:37:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:37:31,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 01:37:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:31,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 01:37:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:32,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:32,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:37:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:37:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 01:37:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:32,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 01:37:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:32,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:32,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:37:32,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 01:37:32,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:37:32,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:37:32,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:37:32,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:37:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:37:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 01:37:32,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:37:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:37:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 141 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-14 01:37:32,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797465204] [2020-10-14 01:37:32,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:37:32,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:37:32,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615701095] [2020-10-14 01:37:32,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:37:32,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:37:32,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:37:32,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:37:32,780 INFO L87 Difference]: Start difference. First operand 55976 states and 82239 transitions. Second operand 7 states. [2020-10-14 01:37:32,926 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:37:36,001 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:37:51,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:37:51,589 INFO L93 Difference]: Finished difference Result 138227 states and 214732 transitions. [2020-10-14 01:37:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:37:51,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1100 [2020-10-14 01:37:51,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:37:51,924 INFO L225 Difference]: With dead ends: 138227 [2020-10-14 01:37:51,924 INFO L226 Difference]: Without dead ends: 82257 [2020-10-14 01:37:52,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:37:52,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82257 states. [2020-10-14 01:37:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82257 to 81739. [2020-10-14 01:37:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81739 states. [2020-10-14 01:37:57,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81739 states to 81739 states and 124755 transitions. [2020-10-14 01:37:57,050 INFO L78 Accepts]: Start accepts. Automaton has 81739 states and 124755 transitions. Word has length 1100 [2020-10-14 01:37:57,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:37:57,051 INFO L479 AbstractCegarLoop]: Abstraction has 81739 states and 124755 transitions. [2020-10-14 01:37:57,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:37:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 81739 states and 124755 transitions. [2020-10-14 01:37:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1102 [2020-10-14 01:37:57,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:37:57,221 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:57,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:37:57,222 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:37:57,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:37:57,223 INFO L82 PathProgramCache]: Analyzing trace with hash -441369633, now seen corresponding path program 1 times [2020-10-14 01:37:57,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:37:57,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059814784] [2020-10-14 01:37:57,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:37:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:37:57,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:57,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:37:58,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:38:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1125 [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:38:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 01:38:02,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 01:38:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:38:02,662 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:38:02,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:38:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:38:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:38:02,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:38:02,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:38:02,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:38:02,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:38:02,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:38:02,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:38:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:38:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:38:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:38:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:38:02,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:38:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:38:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:38:02,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:38:02,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:38:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:38:02,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:38:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 01:38:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:38:02,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:38:02,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:38:02,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:38:02,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:38:02,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 01:38:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:38:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:38:02,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:38:02,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 01:38:02,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:38:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:38:02,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:38:02,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:38:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:38:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:38:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 01:38:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:38:02,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 01:38:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:38:02,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:38:02,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:38:02,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 01:38:02,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:38:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 01:38:02,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:38:02,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:38:02,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:38:02,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:38:02,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 01:38:02,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:38:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-14 01:38:03,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059814784] [2020-10-14 01:38:03,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:38:03,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:38:03,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058521102] [2020-10-14 01:38:03,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:38:03,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:38:03,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:38:03,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:38:03,683 INFO L87 Difference]: Start difference. First operand 81739 states and 124755 transitions. Second operand 7 states. [2020-10-14 01:38:04,221 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 01:38:06,081 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129