/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/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:52:34,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:52:34,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:52:34,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:52:34,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:52:34,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:52:34,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:52:34,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:52:34,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:52:34,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:52:34,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:52:34,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:52:34,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:52:34,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:52:34,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:52:34,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:52:34,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:52:34,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:52:34,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:52:34,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:52:34,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:52:34,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:52:34,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:52:34,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:52:34,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:52:34,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:52:34,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:52:34,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:52:34,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:52:34,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:52:34,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:52:34,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:52:34,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:52:34,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:52:34,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:52:34,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:52:34,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:52:34,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:52:34,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:52:34,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:52:34,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:52:34,872 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 07:52:34,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:52:34,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:52:34,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:52:34,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:52:34,898 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:52:34,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:52:34,898 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:52:34,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:52:34,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:52:34,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:52:34,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:52:34,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:52:34,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:52:34,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:52:34,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:52:34,900 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:52:34,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:52:34,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:52:34,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:52:34,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:52:34,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:52:34,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:52:34,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:52:34,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:52:34,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:52:34,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:52:34,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:52:34,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:52:34,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:52:34,902 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 07:52:35,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:52:35,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:52:35,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:52:35,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:52:35,227 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:52:35,228 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 07:52:35,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fc1e87d4/0eae423f318544f580c02456eb05d957/FLAG4a5bc20f1 [2020-10-14 07:52:35,803 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:52:35,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 07:52:35,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fc1e87d4/0eae423f318544f580c02456eb05d957/FLAG4a5bc20f1 [2020-10-14 07:52:36,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fc1e87d4/0eae423f318544f580c02456eb05d957 [2020-10-14 07:52:36,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:52:36,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:52:36,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:52:36,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:52:36,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:52:36,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53baac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36, skipping insertion in model container [2020-10-14 07:52:36,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:52:36,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:52:36,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:52:36,509 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:52:36,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:52:36,664 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:52:36,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36 WrapperNode [2020-10-14 07:52:36,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:52:36,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:52:36,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:52:36,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:52:36,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... [2020-10-14 07:52:36,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:52:36,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:52:36,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:52:36,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:52:36,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:52:36,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:52:36,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:52:36,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:52:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:52:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:52:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:52:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:52:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:52:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:52:36,791 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 07:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:52:37,294 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:52:37,295 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:52:37,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:52:37 BoogieIcfgContainer [2020-10-14 07:52:37,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:52:37,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:52:37,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:52:37,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:52:37,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:52:36" (1/3) ... [2020-10-14 07:52:37,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37239a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:52:37, skipping insertion in model container [2020-10-14 07:52:37,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:52:36" (2/3) ... [2020-10-14 07:52:37,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37239a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:52:37, skipping insertion in model container [2020-10-14 07:52:37,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:52:37" (3/3) ... [2020-10-14 07:52:37,310 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 07:52:37,321 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:52:37,328 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:52:37,343 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:52:37,365 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:52:37,365 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:52:37,365 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:52:37,366 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:52:37,366 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:52:37,366 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:52:37,366 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:52:37,366 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:52:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-10-14 07:52:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:52:37,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:37,397 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] [2020-10-14 07:52:37,398 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:37,404 INFO L82 PathProgramCache]: Analyzing trace with hash -902975289, now seen corresponding path program 1 times [2020-10-14 07:52:37,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:37,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119646659] [2020-10-14 07:52:37,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:37,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:37,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:37,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:52:37,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:37,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-14 07:52:37,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:37,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:37,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:52:37,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:37,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:52:38,144 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-14 07:52:38,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:38,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:52:38,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-14 07:52:38,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:38,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:38,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:38,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:52:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:38,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:38,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:52:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:38,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:52:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:38,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:52:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:38,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:52:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:38,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:52:38,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:38,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:52:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:38,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:52:38,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:38,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:38,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:38,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:38,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:52:38,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:38,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:38,394 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 07:52:38,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119646659] [2020-10-14 07:52:38,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:38,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 07:52:38,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150565596] [2020-10-14 07:52:38,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:52:38,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:38,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:52:38,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:52:38,425 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 6 states. [2020-10-14 07:52:38,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:38,943 INFO L93 Difference]: Finished difference Result 148 states and 211 transitions. [2020-10-14 07:52:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:52:38,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-10-14 07:52:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:38,957 INFO L225 Difference]: With dead ends: 148 [2020-10-14 07:52:38,958 INFO L226 Difference]: Without dead ends: 87 [2020-10-14 07:52:38,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:52:38,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-14 07:52:39,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-14 07:52:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 07:52:39,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 123 transitions. [2020-10-14 07:52:39,020 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 123 transitions. Word has length 53 [2020-10-14 07:52:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:39,021 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 123 transitions. [2020-10-14 07:52:39,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:52:39,021 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 123 transitions. [2020-10-14 07:52:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:52:39,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:39,024 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] [2020-10-14 07:52:39,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:52:39,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:39,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1932334587, now seen corresponding path program 1 times [2020-10-14 07:52:39,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:39,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236953057] [2020-10-14 07:52:39,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:52:39,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-14 07:52:39,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:52:39,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:52:39,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:52:39,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:39,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:52:39,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:39,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:39,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:52:39,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:52:39,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:52:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:39,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:52:39,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:39,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:52:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:39,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:39,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:52:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:39,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:39,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:39,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:39,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:52:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:39,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:52:39,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:39,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:39,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:39,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:39,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:39,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:39,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:39,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:39,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:39,969 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 07:52:39,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236953057] [2020-10-14 07:52:39,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:39,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:52:39,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091794980] [2020-10-14 07:52:39,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:52:39,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:39,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:52:39,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:52:39,973 INFO L87 Difference]: Start difference. First operand 87 states and 123 transitions. Second operand 12 states. [2020-10-14 07:52:41,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:41,118 INFO L93 Difference]: Finished difference Result 146 states and 203 transitions. [2020-10-14 07:52:41,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:52:41,119 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-10-14 07:52:41,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:41,121 INFO L225 Difference]: With dead ends: 146 [2020-10-14 07:52:41,121 INFO L226 Difference]: Without dead ends: 87 [2020-10-14 07:52:41,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:52:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-14 07:52:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-14 07:52:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 07:52:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2020-10-14 07:52:41,148 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 107 transitions. Word has length 53 [2020-10-14 07:52:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:41,149 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 107 transitions. [2020-10-14 07:52:41,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:52:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 107 transitions. [2020-10-14 07:52:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 07:52:41,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:41,151 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] [2020-10-14 07:52:41,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:52:41,152 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:41,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:41,152 INFO L82 PathProgramCache]: Analyzing trace with hash -2021581418, now seen corresponding path program 1 times [2020-10-14 07:52:41,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:41,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141508535] [2020-10-14 07:52:41,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:41,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:41,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:41,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:52:43,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:52:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2069 [2020-10-14 07:52:43,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:52:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 07:52:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:43,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:43,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:43,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:52:43,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:52:43,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:43,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:52:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:43,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:52:43,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:43,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:43,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:43,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:52:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:52:43,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:52:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:43,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:52:43,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:52:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:43,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:43,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:52:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:43,592 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 07:52:43,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141508535] [2020-10-14 07:52:43,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:43,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:52:43,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136511533] [2020-10-14 07:52:43,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:52:43,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:43,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:52:43,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:52:43,594 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. Second operand 9 states. [2020-10-14 07:52:44,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:44,539 INFO L93 Difference]: Finished difference Result 187 states and 245 transitions. [2020-10-14 07:52:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:52:44,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-14 07:52:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:44,546 INFO L225 Difference]: With dead ends: 187 [2020-10-14 07:52:44,547 INFO L226 Difference]: Without dead ends: 134 [2020-10-14 07:52:44,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:52:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-14 07:52:44,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-10-14 07:52:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-14 07:52:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 169 transitions. [2020-10-14 07:52:44,569 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 169 transitions. Word has length 68 [2020-10-14 07:52:44,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:44,570 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 169 transitions. [2020-10-14 07:52:44,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:52:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 169 transitions. [2020-10-14 07:52:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 07:52:44,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:44,573 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] [2020-10-14 07:52:44,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:52:44,574 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:44,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:44,574 INFO L82 PathProgramCache]: Analyzing trace with hash -105969824, now seen corresponding path program 1 times [2020-10-14 07:52:44,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:44,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488292554] [2020-10-14 07:52:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:52:45,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:52:45,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-10-14 07:52:45,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:52:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 07:52:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:45,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:45,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:52:45,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:52:45,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:45,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:45,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:52:45,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:52:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:45,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:45,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:52:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:45,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:52:45,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:45,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:45,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:52:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:45,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:45,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:45,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:45,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:52:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:45,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:45,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:45,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:45,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:45,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:45,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:45,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:45,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:45,635 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 07:52:45,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488292554] [2020-10-14 07:52:45,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:45,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:52:45,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753693163] [2020-10-14 07:52:45,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:52:45,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:45,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:52:45,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:52:45,638 INFO L87 Difference]: Start difference. First operand 132 states and 169 transitions. Second operand 9 states. [2020-10-14 07:52:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:46,442 INFO L93 Difference]: Finished difference Result 316 states and 423 transitions. [2020-10-14 07:52:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:52:46,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-14 07:52:46,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:46,446 INFO L225 Difference]: With dead ends: 316 [2020-10-14 07:52:46,446 INFO L226 Difference]: Without dead ends: 218 [2020-10-14 07:52:46,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:52:46,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-14 07:52:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2020-10-14 07:52:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-14 07:52:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2020-10-14 07:52:46,478 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 283 transitions. Word has length 68 [2020-10-14 07:52:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:46,478 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 283 transitions. [2020-10-14 07:52:46,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:52:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 283 transitions. [2020-10-14 07:52:46,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 07:52:46,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:46,481 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] [2020-10-14 07:52:46,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:52:46,482 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:46,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:46,482 INFO L82 PathProgramCache]: Analyzing trace with hash 364887444, now seen corresponding path program 1 times [2020-10-14 07:52:46,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:46,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955008163] [2020-10-14 07:52:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:46,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:52:48,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:52:48,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1707 [2020-10-14 07:52:48,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:52:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:52:48,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 07:52:48,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:48,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:52:48,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:52:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:48,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:52:48,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:52:48,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:48,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:48,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:52:48,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:48,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:52:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:48,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:48,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:48,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:48,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:52:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:48,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:52:48,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:48,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:48,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:52:48,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:48,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:48,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:48,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:52:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:48,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:48,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:52:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:48,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:52:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:48,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:48,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:48,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:48,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:48,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:48,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:48,526 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 07:52:48,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955008163] [2020-10-14 07:52:48,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:48,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:52:48,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268079534] [2020-10-14 07:52:48,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:52:48,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:48,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:52:48,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:52:48,529 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand 13 states. [2020-10-14 07:52:48,710 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-14 07:52:49,131 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-14 07:52:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:49,970 INFO L93 Difference]: Finished difference Result 404 states and 542 transitions. [2020-10-14 07:52:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:52:49,970 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 68 [2020-10-14 07:52:49,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:49,973 INFO L225 Difference]: With dead ends: 404 [2020-10-14 07:52:49,974 INFO L226 Difference]: Without dead ends: 222 [2020-10-14 07:52:49,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:52:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-14 07:52:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 216. [2020-10-14 07:52:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-14 07:52:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 281 transitions. [2020-10-14 07:52:50,048 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 281 transitions. Word has length 68 [2020-10-14 07:52:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:50,049 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 281 transitions. [2020-10-14 07:52:50,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:52:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 281 transitions. [2020-10-14 07:52:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 07:52:50,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:50,051 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] [2020-10-14 07:52:50,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:52:50,052 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:50,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:50,052 INFO L82 PathProgramCache]: Analyzing trace with hash 342255190, now seen corresponding path program 1 times [2020-10-14 07:52:50,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:50,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263707895] [2020-10-14 07:52:50,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:52:50,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-14 07:52:50,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:52:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:52:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 07:52:50,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:50,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:50,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:50,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:50,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:52:50,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:52:50,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:52:50,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:52:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:50,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:50,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:50,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:50,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:52:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:52:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:50,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:52:50,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:50,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:50,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:52:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:50,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:52:50,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:52:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:50,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:52:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:50,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:50,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:50,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:50,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:50,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:50,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:50,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:52:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:52:50,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:50,836 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 07:52:50,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263707895] [2020-10-14 07:52:50,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:50,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:52:50,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191410462] [2020-10-14 07:52:50,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:52:50,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:50,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:52:50,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:52:50,840 INFO L87 Difference]: Start difference. First operand 216 states and 281 transitions. Second operand 13 states. [2020-10-14 07:52:54,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:54,327 INFO L93 Difference]: Finished difference Result 1572 states and 2186 transitions. [2020-10-14 07:52:54,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 07:52:54,329 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 68 [2020-10-14 07:52:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:54,343 INFO L225 Difference]: With dead ends: 1572 [2020-10-14 07:52:54,344 INFO L226 Difference]: Without dead ends: 1390 [2020-10-14 07:52:54,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=593, Invalid=1957, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 07:52:54,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2020-10-14 07:52:54,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1314. [2020-10-14 07:52:54,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-14 07:52:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1753 transitions. [2020-10-14 07:52:54,498 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1753 transitions. Word has length 68 [2020-10-14 07:52:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:54,498 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1753 transitions. [2020-10-14 07:52:54,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:52:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1753 transitions. [2020-10-14 07:52:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 07:52:54,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:54,501 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] [2020-10-14 07:52:54,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:52:54,501 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1088531098, now seen corresponding path program 1 times [2020-10-14 07:52:54,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:54,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77938859] [2020-10-14 07:52:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:54,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:54,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:54,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:54,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:54,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 07:52:54,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:52:54,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-14 07:52:54,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:54,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 07:52:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:52:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:54,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:54,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:54,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:54,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:54,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:54,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:52:54,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:54,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:54,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:54,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:54,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:54,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:54,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:52:54,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:52:54,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:54,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:54,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:52:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:54,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:54,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:54,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:54,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:54,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:54,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:54,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:54,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:55,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:52:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:55,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:55,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:55,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:55,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:52:55,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:55,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:55,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:55,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:55,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:55,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:52:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:55,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:55,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:55,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:55,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:55,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:55,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:55,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:55,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:55,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:52:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:55,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:55,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:55,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:52:55,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:55,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:55,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:55,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:52:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:52:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:55,121 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 07:52:55,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77938859] [2020-10-14 07:52:55,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:55,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:52:55,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116872717] [2020-10-14 07:52:55,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:52:55,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:55,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:52:55,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:52:55,126 INFO L87 Difference]: Start difference. First operand 1314 states and 1753 transitions. Second operand 7 states. [2020-10-14 07:52:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:56,116 INFO L93 Difference]: Finished difference Result 3307 states and 4450 transitions. [2020-10-14 07:52:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:52:56,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-14 07:52:56,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:56,129 INFO L225 Difference]: With dead ends: 3307 [2020-10-14 07:52:56,130 INFO L226 Difference]: Without dead ends: 2027 [2020-10-14 07:52:56,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:52:56,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-10-14 07:52:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2025. [2020-10-14 07:52:56,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2025 states. [2020-10-14 07:52:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2680 transitions. [2020-10-14 07:52:56,317 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2680 transitions. Word has length 70 [2020-10-14 07:52:56,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:56,318 INFO L479 AbstractCegarLoop]: Abstraction has 2025 states and 2680 transitions. [2020-10-14 07:52:56,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:52:56,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2680 transitions. [2020-10-14 07:52:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 07:52:56,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:56,320 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] [2020-10-14 07:52:56,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:52:56,320 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:56,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:56,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1018747030, now seen corresponding path program 1 times [2020-10-14 07:52:56,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:56,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185112558] [2020-10-14 07:52:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:56,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:56,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:56,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 07:52:58,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:52:58,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1917 [2020-10-14 07:52:58,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:52:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 07:52:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:58,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:58,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:52:58,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:58,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:58,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:52:58,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:58,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:52:58,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:58,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:52:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:58,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:58,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:58,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:52:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:58,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:52:58,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:58,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:58,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:52:58,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:58,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:52:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:52:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:58,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:52:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:58,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:52:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:52:58,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:52:58,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:52:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:52:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:52:58,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:58,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:52:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:58,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:58,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:58,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:58,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:58,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:58,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:58,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:58,498 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 07:52:58,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185112558] [2020-10-14 07:52:58,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:58,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:52:58,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800630569] [2020-10-14 07:52:58,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:52:58,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:58,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:52:58,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:52:58,501 INFO L87 Difference]: Start difference. First operand 2025 states and 2680 transitions. Second operand 9 states. [2020-10-14 07:52:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:59,660 INFO L93 Difference]: Finished difference Result 5701 states and 7600 transitions. [2020-10-14 07:52:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:52:59,661 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 07:52:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:59,693 INFO L225 Difference]: With dead ends: 5701 [2020-10-14 07:52:59,693 INFO L226 Difference]: Without dead ends: 3710 [2020-10-14 07:52:59,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:52:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2020-10-14 07:53:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3708. [2020-10-14 07:53:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3708 states. [2020-10-14 07:53:00,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 4827 transitions. [2020-10-14 07:53:00,093 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 4827 transitions. Word has length 70 [2020-10-14 07:53:00,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:00,094 INFO L479 AbstractCegarLoop]: Abstraction has 3708 states and 4827 transitions. [2020-10-14 07:53:00,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:53:00,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 4827 transitions. [2020-10-14 07:53:00,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 07:53:00,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:00,097 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] [2020-10-14 07:53:00,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:53:00,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:00,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:00,098 INFO L82 PathProgramCache]: Analyzing trace with hash -713336965, now seen corresponding path program 1 times [2020-10-14 07:53:00,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:00,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217636130] [2020-10-14 07:53:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 07:53:00,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:53:00,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-14 07:53:00,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:00,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:53:00,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:53:00,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:00,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:00,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:00,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:00,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:00,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:00,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:53:00,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:00,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:00,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:00,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:00,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:00,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:53:00,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:00,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:00,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:00,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:00,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:00,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:00,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:00,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:00,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:00,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:53:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:00,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:53:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:53:00,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:00,735 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 07:53:00,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217636130] [2020-10-14 07:53:00,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:00,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:53:00,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622799429] [2020-10-14 07:53:00,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:53:00,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:00,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:53:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:53:00,738 INFO L87 Difference]: Start difference. First operand 3708 states and 4827 transitions. Second operand 9 states. [2020-10-14 07:53:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:02,269 INFO L93 Difference]: Finished difference Result 8186 states and 10699 transitions. [2020-10-14 07:53:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:53:02,270 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 07:53:02,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:02,298 INFO L225 Difference]: With dead ends: 8186 [2020-10-14 07:53:02,298 INFO L226 Difference]: Without dead ends: 4512 [2020-10-14 07:53:02,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:53:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2020-10-14 07:53:02,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4508. [2020-10-14 07:53:02,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4508 states. [2020-10-14 07:53:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 5868 transitions. [2020-10-14 07:53:02,724 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 5868 transitions. Word has length 71 [2020-10-14 07:53:02,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:02,725 INFO L479 AbstractCegarLoop]: Abstraction has 4508 states and 5868 transitions. [2020-10-14 07:53:02,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:53:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 5868 transitions. [2020-10-14 07:53:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 07:53:02,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:02,730 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] [2020-10-14 07:53:02,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:53:02,730 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:02,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:02,731 INFO L82 PathProgramCache]: Analyzing trace with hash 934087996, now seen corresponding path program 1 times [2020-10-14 07:53:02,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:02,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702294014] [2020-10-14 07:53:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 07:53:03,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-14 07:53:03,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:53:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 07:53:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:03,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:03,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:03,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:03,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:03,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:03,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:03,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:03,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:53:03,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:03,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:03,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:03,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:03,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:03,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:03,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:03,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:03,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:03,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:03,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:03,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:03,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:03,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:03,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:03,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:03,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:53:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:03,326 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 07:53:03,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702294014] [2020-10-14 07:53:03,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:03,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 07:53:03,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303376225] [2020-10-14 07:53:03,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:53:03,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:03,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:53:03,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:53:03,328 INFO L87 Difference]: Start difference. First operand 4508 states and 5868 transitions. Second operand 12 states. [2020-10-14 07:53:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:04,793 INFO L93 Difference]: Finished difference Result 5322 states and 7170 transitions. [2020-10-14 07:53:04,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:53:04,794 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-14 07:53:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:04,827 INFO L225 Difference]: With dead ends: 5322 [2020-10-14 07:53:04,827 INFO L226 Difference]: Without dead ends: 5320 [2020-10-14 07:53:04,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:53:04,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5320 states. [2020-10-14 07:53:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5320 to 4904. [2020-10-14 07:53:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4904 states. [2020-10-14 07:53:05,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4904 states to 4904 states and 6264 transitions. [2020-10-14 07:53:05,272 INFO L78 Accepts]: Start accepts. Automaton has 4904 states and 6264 transitions. Word has length 71 [2020-10-14 07:53:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:05,273 INFO L479 AbstractCegarLoop]: Abstraction has 4904 states and 6264 transitions. [2020-10-14 07:53:05,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:53:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4904 states and 6264 transitions. [2020-10-14 07:53:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 07:53:05,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:05,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:53:05,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:53:05,277 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:05,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:05,277 INFO L82 PathProgramCache]: Analyzing trace with hash -795715301, now seen corresponding path program 1 times [2020-10-14 07:53:05,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:05,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230965544] [2020-10-14 07:53:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:05,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:05,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:05,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:05,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:06,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 07:53:10,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:53:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 07:53:10,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:53:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:53:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 07:53:10,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:10,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:10,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:10,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:53:10,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:53:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:10,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:10,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:10,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:10,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:53:10,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:10,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:10,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:10,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:10,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:10,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:10,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:10,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:10,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:10,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:10,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:10,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:10,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:10,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:10,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:53:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:10,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:10,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:10,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:10,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:10,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:10,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:53:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:10,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:53:10,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:10,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:10,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:53:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:10,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:10,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:10,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:53:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:10,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:10,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:10,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:10,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:10,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:53:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:10,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:53:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 07:53:10,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230965544] [2020-10-14 07:53:10,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:10,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:53:10,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422139764] [2020-10-14 07:53:10,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:53:10,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:10,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:53:10,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:53:10,846 INFO L87 Difference]: Start difference. First operand 4904 states and 6264 transitions. Second operand 13 states. [2020-10-14 07:53:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:13,506 INFO L93 Difference]: Finished difference Result 9252 states and 11857 transitions. [2020-10-14 07:53:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 07:53:13,507 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-14 07:53:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:13,532 INFO L225 Difference]: With dead ends: 9252 [2020-10-14 07:53:13,533 INFO L226 Difference]: Without dead ends: 4386 [2020-10-14 07:53:13,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=400, Invalid=1322, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 07:53:13,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2020-10-14 07:53:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4238. [2020-10-14 07:53:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4238 states. [2020-10-14 07:53:13,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 5384 transitions. [2020-10-14 07:53:13,967 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 5384 transitions. Word has length 108 [2020-10-14 07:53:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:13,968 INFO L479 AbstractCegarLoop]: Abstraction has 4238 states and 5384 transitions. [2020-10-14 07:53:13,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:53:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 5384 transitions. [2020-10-14 07:53:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 07:53:13,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:13,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:53:13,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:53:13,973 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:13,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:13,974 INFO L82 PathProgramCache]: Analyzing trace with hash -12831587, now seen corresponding path program 1 times [2020-10-14 07:53:13,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:13,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598714122] [2020-10-14 07:53:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:14,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:14,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:14,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 07:53:19,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:53:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-14 07:53:19,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 07:53:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 07:53:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:19,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:19,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:19,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:19,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:19,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:53:19,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:19,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:19,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:19,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:19,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:19,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:53:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:19,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:19,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:19,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:19,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:19,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:19,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:53:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:19,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:19,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:53:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:19,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:53:19,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:19,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:53:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:19,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:19,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:19,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:19,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:19,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:19,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:19,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 07:53:19,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598714122] [2020-10-14 07:53:19,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:53:19,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:53:19,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295769366] [2020-10-14 07:53:19,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:53:19,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:19,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:53:19,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:53:19,395 INFO L87 Difference]: Start difference. First operand 4238 states and 5384 transitions. Second operand 9 states. [2020-10-14 07:53:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:20,532 INFO L93 Difference]: Finished difference Result 8440 states and 10730 transitions. [2020-10-14 07:53:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:53:20,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-14 07:53:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:20,569 INFO L225 Difference]: With dead ends: 8440 [2020-10-14 07:53:20,570 INFO L226 Difference]: Without dead ends: 4240 [2020-10-14 07:53:20,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:53:20,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2020-10-14 07:53:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 4238. [2020-10-14 07:53:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4238 states. [2020-10-14 07:53:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 5296 transitions. [2020-10-14 07:53:20,960 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 5296 transitions. Word has length 108 [2020-10-14 07:53:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:20,960 INFO L479 AbstractCegarLoop]: Abstraction has 4238 states and 5296 transitions. [2020-10-14 07:53:20,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:53:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 5296 transitions. [2020-10-14 07:53:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 07:53:20,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:20,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:53:20,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:53:20,965 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:20,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:20,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1581453095, now seen corresponding path program 1 times [2020-10-14 07:53:20,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:20,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686203605] [2020-10-14 07:53:20,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:21,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:21,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:22,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:23,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:25,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:25,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 07:53:25,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:26,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:26,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:26,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 07:53:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:26,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:26,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:53:26,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:26,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:53:26,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:26,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:26,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:26,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:26,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:26,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:53:26,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:26,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:26,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:26,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:53:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:26,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:26,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:53:26,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:26,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:53:26,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:53:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:26,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:26,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:26,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:26,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:53:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:26,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:53:26,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:26,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:53:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:26,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:26,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:26,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:53:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:26,564 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 07:53:26,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686203605] [2020-10-14 07:53:26,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:53:26,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 07:53:26,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256542364] [2020-10-14 07:53:26,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:53:26,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:26,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:53:26,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:53:26,574 INFO L87 Difference]: Start difference. First operand 4238 states and 5296 transitions. Second operand 14 states. [2020-10-14 07:53:26,811 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-14 07:53:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:29,894 INFO L93 Difference]: Finished difference Result 9174 states and 11699 transitions. [2020-10-14 07:53:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 07:53:29,895 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 108 [2020-10-14 07:53:29,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:29,923 INFO L225 Difference]: With dead ends: 9174 [2020-10-14 07:53:29,923 INFO L226 Difference]: Without dead ends: 6474 [2020-10-14 07:53:29,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 07:53:29,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2020-10-14 07:53:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 5957. [2020-10-14 07:53:30,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5957 states. [2020-10-14 07:53:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5957 states to 5957 states and 7409 transitions. [2020-10-14 07:53:30,536 INFO L78 Accepts]: Start accepts. Automaton has 5957 states and 7409 transitions. Word has length 108 [2020-10-14 07:53:30,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:30,537 INFO L479 AbstractCegarLoop]: Abstraction has 5957 states and 7409 transitions. [2020-10-14 07:53:30,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:53:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5957 states and 7409 transitions. [2020-10-14 07:53:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 07:53:30,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:30,541 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:53:30,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:53:30,542 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:30,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:30,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1971454811, now seen corresponding path program 1 times [2020-10-14 07:53:30,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:30,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55591437] [2020-10-14 07:53:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:30,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:30,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:30,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:32,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:33,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 07:53:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:35,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:35,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:35,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:35,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:35,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:35,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:35,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:35,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:35,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:35,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:35,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:35,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:35,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:35,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:35,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:35,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:35,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:35,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:35,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:35,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:35,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:35,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:35,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:35,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:35,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:35,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:35,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:35,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:35,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:35,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:35,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:35,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:35,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:53:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:36,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:36,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:36,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:53:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:36,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:36,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:36,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:53:36,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:36,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:36,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:53:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:36,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:36,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:36,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:53:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:36,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:36,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:53:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:36,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:53:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:36,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:36,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:36,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:36,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:36,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:36,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:36,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:53:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:53:36,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 07:53:36,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55591437] [2020-10-14 07:53:36,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:53:36,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:53:36,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73217490] [2020-10-14 07:53:36,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:53:36,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:36,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:53:36,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:53:36,252 INFO L87 Difference]: Start difference. First operand 5957 states and 7409 transitions. Second operand 15 states. [2020-10-14 07:53:36,408 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-14 07:53:37,392 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-14 07:53:41,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:41,428 INFO L93 Difference]: Finished difference Result 14729 states and 18940 transitions. [2020-10-14 07:53:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 07:53:41,437 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 108 [2020-10-14 07:53:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:41,478 INFO L225 Difference]: With dead ends: 14729 [2020-10-14 07:53:41,479 INFO L226 Difference]: Without dead ends: 10042 [2020-10-14 07:53:41,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=900, Invalid=3792, Unknown=0, NotChecked=0, Total=4692 [2020-10-14 07:53:41,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2020-10-14 07:53:42,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 9652. [2020-10-14 07:53:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9652 states. [2020-10-14 07:53:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9652 states to 9652 states and 12278 transitions. [2020-10-14 07:53:42,428 INFO L78 Accepts]: Start accepts. Automaton has 9652 states and 12278 transitions. Word has length 108 [2020-10-14 07:53:42,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:42,428 INFO L479 AbstractCegarLoop]: Abstraction has 9652 states and 12278 transitions. [2020-10-14 07:53:42,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:53:42,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9652 states and 12278 transitions. [2020-10-14 07:53:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 07:53:42,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:42,432 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:53:42,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:53:42,432 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:42,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:42,432 INFO L82 PathProgramCache]: Analyzing trace with hash -802685664, now seen corresponding path program 1 times [2020-10-14 07:53:42,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:42,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980962454] [2020-10-14 07:53:42,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:42,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:42,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:42,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 07:53:47,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:53:47,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:53:47,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:53:47,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:53:47,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 07:53:47,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:47,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:47,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:53:47,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:53:47,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:53:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:53:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:47,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:47,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:53:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:53:47,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:47,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:53:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:53:47,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:53:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:47,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:47,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:53:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:53:47,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:47,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:53:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:47,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:53:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:53:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:47,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:47,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:47,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:53:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:47,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:47,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:47,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:47,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:47,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:53:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:48,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:48,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:48,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:48,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:53:48,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:48,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:48,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:53:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:48,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:48,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:48,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:53:48,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:48,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:53:48,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:48,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:53:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:53:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:53:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:48,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 07:53:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:48,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:53:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:48,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:48,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:48,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:53:48,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:48,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 07:53:48,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980962454] [2020-10-14 07:53:48,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:53:48,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:53:48,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545460680] [2020-10-14 07:53:48,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:53:48,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:48,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:53:48,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:53:48,096 INFO L87 Difference]: Start difference. First operand 9652 states and 12278 transitions. Second operand 15 states. [2020-10-14 07:53:48,719 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-14 07:53:49,812 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2020-10-14 07:53:51,160 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 07:53:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:52,806 INFO L93 Difference]: Finished difference Result 38892 states and 49434 transitions. [2020-10-14 07:53:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 07:53:52,808 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-14 07:53:52,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:52,914 INFO L225 Difference]: With dead ends: 38892 [2020-10-14 07:53:52,914 INFO L226 Difference]: Without dead ends: 29289 [2020-10-14 07:53:52,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 07:53:52,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29289 states. [2020-10-14 07:53:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29289 to 26661. [2020-10-14 07:53:57,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26661 states. [2020-10-14 07:53:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26661 states to 26661 states and 34046 transitions. [2020-10-14 07:53:57,084 INFO L78 Accepts]: Start accepts. Automaton has 26661 states and 34046 transitions. Word has length 109 [2020-10-14 07:53:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:57,085 INFO L479 AbstractCegarLoop]: Abstraction has 26661 states and 34046 transitions. [2020-10-14 07:53:57,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:53:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 26661 states and 34046 transitions. [2020-10-14 07:53:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 07:53:57,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:57,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:53:57,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:53:57,092 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:57,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:57,092 INFO L82 PathProgramCache]: Analyzing trace with hash -857078562, now seen corresponding path program 1 times [2020-10-14 07:53:57,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:57,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980341729] [2020-10-14 07:53:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:57,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:57,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:57,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 07:54:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:54:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 07:54:02,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:54:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:54:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:54:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:02,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:02,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:54:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:54:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:54:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:54:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:02,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:02,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:02,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:02,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:54:02,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:02,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:02,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:02,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:54:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:02,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:02,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:54:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:54:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:02,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:02,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:54:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:54:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:02,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:02,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:02,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:02,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 07:54:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:02,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:02,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:54:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-14 07:54:02,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980341729] [2020-10-14 07:54:02,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:02,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 07:54:02,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358973072] [2020-10-14 07:54:02,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:54:02,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:02,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:54:02,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:54:02,595 INFO L87 Difference]: Start difference. First operand 26661 states and 34046 transitions. Second operand 13 states. [2020-10-14 07:54:02,757 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-14 07:54:03,177 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-14 07:54:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:04,927 INFO L93 Difference]: Finished difference Result 47513 states and 60695 transitions. [2020-10-14 07:54:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:54:04,928 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-14 07:54:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:04,997 INFO L225 Difference]: With dead ends: 47513 [2020-10-14 07:54:04,997 INFO L226 Difference]: Without dead ends: 20709 [2020-10-14 07:54:05,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:54:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20709 states. [2020-10-14 07:54:06,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20709 to 20380. [2020-10-14 07:54:06,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20380 states. [2020-10-14 07:54:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20380 states to 20380 states and 25448 transitions. [2020-10-14 07:54:06,771 INFO L78 Accepts]: Start accepts. Automaton has 20380 states and 25448 transitions. Word has length 109 [2020-10-14 07:54:06,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:06,772 INFO L479 AbstractCegarLoop]: Abstraction has 20380 states and 25448 transitions. [2020-10-14 07:54:06,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:54:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 20380 states and 25448 transitions. [2020-10-14 07:54:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 07:54:06,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:06,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:06,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:54:06,776 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:06,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:06,776 INFO L82 PathProgramCache]: Analyzing trace with hash 697212681, now seen corresponding path program 1 times [2020-10-14 07:54:06,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:06,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219254143] [2020-10-14 07:54:06,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:06,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:07,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:08,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:09,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:11,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:11,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 07:54:11,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:54:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:54:11,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:11,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:54:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:54:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 07:54:11,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:11,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:11,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:11,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:11,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:11,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:11,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:11,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:11,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:11,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:54:12,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:12,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:54:12,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:54:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:12,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:12,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:54:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:12,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:54:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:12,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:12,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:12,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:12,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:12,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:54:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:12,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:12,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:54:12,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:54:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:12,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:12,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:54:12,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:12,271 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 07:54:12,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219254143] [2020-10-14 07:54:12,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:12,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 07:54:12,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931766006] [2020-10-14 07:54:12,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:54:12,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:12,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:54:12,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:54:12,273 INFO L87 Difference]: Start difference. First operand 20380 states and 25448 transitions. Second operand 11 states. [2020-10-14 07:54:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:15,842 INFO L93 Difference]: Finished difference Result 46967 states and 58976 transitions. [2020-10-14 07:54:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 07:54:15,843 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2020-10-14 07:54:15,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:15,923 INFO L225 Difference]: With dead ends: 46967 [2020-10-14 07:54:15,923 INFO L226 Difference]: Without dead ends: 29589 [2020-10-14 07:54:15,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2020-10-14 07:54:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29589 states. [2020-10-14 07:54:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29589 to 29580. [2020-10-14 07:54:17,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29580 states. [2020-10-14 07:54:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29580 states to 29580 states and 36654 transitions. [2020-10-14 07:54:17,905 INFO L78 Accepts]: Start accepts. Automaton has 29580 states and 36654 transitions. Word has length 110 [2020-10-14 07:54:17,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:17,906 INFO L479 AbstractCegarLoop]: Abstraction has 29580 states and 36654 transitions. [2020-10-14 07:54:17,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:54:17,906 INFO L276 IsEmpty]: Start isEmpty. Operand 29580 states and 36654 transitions. [2020-10-14 07:54:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 07:54:17,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:17,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:17,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:54:17,909 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:17,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:17,910 INFO L82 PathProgramCache]: Analyzing trace with hash -749214925, now seen corresponding path program 1 times [2020-10-14 07:54:17,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:17,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659942029] [2020-10-14 07:54:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:17,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:17,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5384 [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:54:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:54:23,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 07:54:23,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:23,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:23,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:23,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:54:23,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:23,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:54:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:54:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:23,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:23,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:23,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:23,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:54:23,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:54:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:23,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:23,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:54:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:23,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:23,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:54:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:23,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:23,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:23,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:54:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:23,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:54:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:23,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:23,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:54:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:23,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:23,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:54:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 07:54:23,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659942029] [2020-10-14 07:54:23,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:23,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 07:54:23,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137416131] [2020-10-14 07:54:23,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 07:54:23,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:23,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 07:54:23,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:54:23,771 INFO L87 Difference]: Start difference. First operand 29580 states and 36654 transitions. Second operand 18 states. [2020-10-14 07:54:23,966 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-14 07:54:24,368 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-14 07:54:24,825 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-14 07:54:25,171 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-14 07:54:25,528 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-14 07:54:26,083 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-14 07:54:26,586 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-14 07:54:30,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:30,368 INFO L93 Difference]: Finished difference Result 54210 states and 66910 transitions. [2020-10-14 07:54:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 07:54:30,368 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 110 [2020-10-14 07:54:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:30,488 INFO L225 Difference]: With dead ends: 54210 [2020-10-14 07:54:30,489 INFO L226 Difference]: Without dead ends: 31592 [2020-10-14 07:54:30,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=661, Invalid=2531, Unknown=0, NotChecked=0, Total=3192 [2020-10-14 07:54:30,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31592 states. [2020-10-14 07:54:32,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31592 to 29397. [2020-10-14 07:54:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29397 states. [2020-10-14 07:54:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29397 states to 29397 states and 36168 transitions. [2020-10-14 07:54:32,644 INFO L78 Accepts]: Start accepts. Automaton has 29397 states and 36168 transitions. Word has length 110 [2020-10-14 07:54:32,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:32,645 INFO L479 AbstractCegarLoop]: Abstraction has 29397 states and 36168 transitions. [2020-10-14 07:54:32,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 07:54:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 29397 states and 36168 transitions. [2020-10-14 07:54:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-14 07:54:32,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:32,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:32,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 07:54:32,649 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:32,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:32,649 INFO L82 PathProgramCache]: Analyzing trace with hash 13684810, now seen corresponding path program 1 times [2020-10-14 07:54:32,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:32,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931064066] [2020-10-14 07:54:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:32,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:54:35,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3296 [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 07:54:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:36,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:36,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:36,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:54:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:54:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:36,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:36,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:36,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:36,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:36,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:54:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:36,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:36,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:36,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:54:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:36,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:54:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:36,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:54:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:36,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:36,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:54:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:54:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 07:54:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:54:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 07:54:36,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931064066] [2020-10-14 07:54:36,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:36,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 07:54:36,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717465725] [2020-10-14 07:54:36,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 07:54:36,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:36,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 07:54:36,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:54:36,532 INFO L87 Difference]: Start difference. First operand 29397 states and 36168 transitions. Second operand 18 states. [2020-10-14 07:54:37,027 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-14 07:54:37,385 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-14 07:54:37,714 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-14 07:54:38,194 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-14 07:54:38,601 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2020-10-14 07:54:39,045 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-14 07:54:41,160 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 07:54:44,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:44,796 INFO L93 Difference]: Finished difference Result 74284 states and 91481 transitions. [2020-10-14 07:54:44,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 07:54:44,797 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2020-10-14 07:54:44,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:44,917 INFO L225 Difference]: With dead ends: 74284 [2020-10-14 07:54:44,917 INFO L226 Difference]: Without dead ends: 52521 [2020-10-14 07:54:44,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=722, Invalid=2818, Unknown=0, NotChecked=0, Total=3540 [2020-10-14 07:54:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52521 states. [2020-10-14 07:54:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52521 to 49550. [2020-10-14 07:54:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49550 states. [2020-10-14 07:54:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49550 states to 49550 states and 60737 transitions. [2020-10-14 07:54:48,721 INFO L78 Accepts]: Start accepts. Automaton has 49550 states and 60737 transitions. Word has length 111 [2020-10-14 07:54:48,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:48,721 INFO L479 AbstractCegarLoop]: Abstraction has 49550 states and 60737 transitions. [2020-10-14 07:54:48,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 07:54:48,721 INFO L276 IsEmpty]: Start isEmpty. Operand 49550 states and 60737 transitions. [2020-10-14 07:54:48,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-14 07:54:48,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:48,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:48,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 07:54:48,723 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:48,723 INFO L82 PathProgramCache]: Analyzing trace with hash 668270486, now seen corresponding path program 1 times [2020-10-14 07:54:48,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:48,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655241275] [2020-10-14 07:54:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:48,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:48,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:54:53,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:53,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4661 [2020-10-14 07:54:53,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:54:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:54:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 07:54:53,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:53,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:53,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:54:53,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:53,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:54:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:54:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:53,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:53,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:53,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:54:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:53,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,838 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-10-14 07:54:53,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:53,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:53,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:54:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:53,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:54:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:53,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:53,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:53,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:53,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:54:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:53,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:53,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:53,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:53,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:53,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:53,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:54:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:53,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:54,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:54,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:54,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:54,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 07:54:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:54,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:54,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:54,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:54:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 07:54:54,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655241275] [2020-10-14 07:54:54,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:54:54,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:54:54,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596732836] [2020-10-14 07:54:54,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:54:54,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:54,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:54:54,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:54:54,020 INFO L87 Difference]: Start difference. First operand 49550 states and 60737 transitions. Second operand 15 states. [2020-10-14 07:54:54,675 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-14 07:54:55,588 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2020-10-14 07:54:57,226 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-14 07:55:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:00,818 INFO L93 Difference]: Finished difference Result 103377 states and 126576 transitions. [2020-10-14 07:55:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 07:55:00,819 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 111 [2020-10-14 07:55:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:00,930 INFO L225 Difference]: With dead ends: 103377 [2020-10-14 07:55:00,930 INFO L226 Difference]: Without dead ends: 53467 [2020-10-14 07:55:00,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=491, Invalid=2059, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 07:55:01,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53467 states. [2020-10-14 07:55:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53467 to 50121. [2020-10-14 07:55:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50121 states. [2020-10-14 07:55:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50121 states to 50121 states and 61182 transitions. [2020-10-14 07:55:04,494 INFO L78 Accepts]: Start accepts. Automaton has 50121 states and 61182 transitions. Word has length 111 [2020-10-14 07:55:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:04,495 INFO L479 AbstractCegarLoop]: Abstraction has 50121 states and 61182 transitions. [2020-10-14 07:55:04,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:55:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 50121 states and 61182 transitions. [2020-10-14 07:55:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-14 07:55:04,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:04,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:04,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 07:55:04,497 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1422805388, now seen corresponding path program 1 times [2020-10-14 07:55:04,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:04,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471670169] [2020-10-14 07:55:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1748 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 07:55:06,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:06,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:06,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:06,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:55:06,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:06,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:06,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:06,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:55:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:06,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:06,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:06,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:06,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:06,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:06,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:06,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:06,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:06,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:55:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:06,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:06,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:55:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:06,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:06,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:55:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:06,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:06,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 07:55:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:06,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:06,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:06,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 07:55:06,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471670169] [2020-10-14 07:55:06,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:06,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:55:06,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764042536] [2020-10-14 07:55:06,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:55:06,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:06,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:55:06,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:55:06,520 INFO L87 Difference]: Start difference. First operand 50121 states and 61182 transitions. Second operand 9 states. [2020-10-14 07:55:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:09,588 INFO L93 Difference]: Finished difference Result 69094 states and 84464 transitions. [2020-10-14 07:55:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:55:09,589 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-10-14 07:55:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:09,633 INFO L225 Difference]: With dead ends: 69094 [2020-10-14 07:55:09,634 INFO L226 Difference]: Without dead ends: 19006 [2020-10-14 07:55:09,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:55:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19006 states. [2020-10-14 07:55:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19006 to 18351. [2020-10-14 07:55:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18351 states. [2020-10-14 07:55:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18351 states to 18351 states and 22137 transitions. [2020-10-14 07:55:11,234 INFO L78 Accepts]: Start accepts. Automaton has 18351 states and 22137 transitions. Word has length 111 [2020-10-14 07:55:11,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:11,234 INFO L479 AbstractCegarLoop]: Abstraction has 18351 states and 22137 transitions. [2020-10-14 07:55:11,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:55:11,234 INFO L276 IsEmpty]: Start isEmpty. Operand 18351 states and 22137 transitions. [2020-10-14 07:55:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 07:55:11,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:11,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:11,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 07:55:11,236 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:11,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1817358158, now seen corresponding path program 1 times [2020-10-14 07:55:11,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:11,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501709208] [2020-10-14 07:55:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:11,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:11,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:11,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:12,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:12,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 07:55:12,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1648 [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 07:55:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:55:13,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:55:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:55:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:13,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:13,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:13,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:55:13,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:13,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:13,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:13,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:13,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:13,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:13,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:55:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:55:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:55:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:13,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 07:55:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 07:55:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:13,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:13,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 07:55:13,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501709208] [2020-10-14 07:55:13,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:13,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 07:55:13,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038260232] [2020-10-14 07:55:13,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 07:55:13,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:13,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 07:55:13,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:55:13,361 INFO L87 Difference]: Start difference. First operand 18351 states and 22137 transitions. Second operand 18 states. [2020-10-14 07:55:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:18,747 INFO L93 Difference]: Finished difference Result 54845 states and 66360 transitions. [2020-10-14 07:55:18,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 07:55:18,749 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-10-14 07:55:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:18,852 INFO L225 Difference]: With dead ends: 54845 [2020-10-14 07:55:18,852 INFO L226 Difference]: Without dead ends: 47414 [2020-10-14 07:55:18,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=424, Invalid=1738, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 07:55:18,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47414 states. [2020-10-14 07:55:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47414 to 46557. [2020-10-14 07:55:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46557 states. [2020-10-14 07:55:23,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46557 states to 46557 states and 56394 transitions. [2020-10-14 07:55:23,470 INFO L78 Accepts]: Start accepts. Automaton has 46557 states and 56394 transitions. Word has length 112 [2020-10-14 07:55:23,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:23,470 INFO L479 AbstractCegarLoop]: Abstraction has 46557 states and 56394 transitions. [2020-10-14 07:55:23,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 07:55:23,470 INFO L276 IsEmpty]: Start isEmpty. Operand 46557 states and 56394 transitions. [2020-10-14 07:55:23,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 07:55:23,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:23,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:23,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 07:55:23,472 INFO L427 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:23,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:23,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1615534224, now seen corresponding path program 1 times [2020-10-14 07:55:23,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:23,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616782334] [2020-10-14 07:55:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:23,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3107 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:55:26,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:26,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:26,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:55:26,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:55:26,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:26,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:55:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:55:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:26,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:26,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:26,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:26,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:26,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:26,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:26,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:26,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:26,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:26,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:26,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:26,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:55:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:55:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:26,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 07:55:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:26,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 07:55:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 07:55:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:26,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:26,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:26,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:26,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:26,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:26,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:26,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 07:55:26,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616782334] [2020-10-14 07:55:26,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:26,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 07:55:26,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258979733] [2020-10-14 07:55:26,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:55:26,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:26,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:55:26,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:55:26,885 INFO L87 Difference]: Start difference. First operand 46557 states and 56394 transitions. Second operand 13 states. [2020-10-14 07:55:27,075 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-14 07:55:27,523 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-14 07:55:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:30,694 INFO L93 Difference]: Finished difference Result 83921 states and 101700 transitions. [2020-10-14 07:55:30,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:55:30,695 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-14 07:55:30,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:30,794 INFO L225 Difference]: With dead ends: 83921 [2020-10-14 07:55:30,794 INFO L226 Difference]: Without dead ends: 37355 [2020-10-14 07:55:30,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-10-14 07:55:30,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37355 states. [2020-10-14 07:55:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37355 to 36887. [2020-10-14 07:55:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36887 states. [2020-10-14 07:55:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36887 states to 36887 states and 44019 transitions. [2020-10-14 07:55:33,891 INFO L78 Accepts]: Start accepts. Automaton has 36887 states and 44019 transitions. Word has length 112 [2020-10-14 07:55:33,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:33,891 INFO L479 AbstractCegarLoop]: Abstraction has 36887 states and 44019 transitions. [2020-10-14 07:55:33,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:55:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 36887 states and 44019 transitions. [2020-10-14 07:55:33,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 07:55:33,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:33,894 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:33,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 07:55:33,894 INFO L427 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:33,894 INFO L82 PathProgramCache]: Analyzing trace with hash 832127011, now seen corresponding path program 2 times [2020-10-14 07:55:33,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:33,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278189585] [2020-10-14 07:55:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:34,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:34,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:34,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 07:55:39,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:55:39,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5218 [2020-10-14 07:55:39,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:39,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 07:55:39,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:55:39,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:55:39,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:55:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:39,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:39,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:39,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:39,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:39,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:39,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:55:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:39,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:55:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 07:55:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:39,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:55:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:39,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 07:55:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 07:55:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 07:55:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:39,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-14 07:55:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 07:55:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:39,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:39,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-14 07:55:39,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278189585] [2020-10-14 07:55:39,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:39,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:55:39,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144170737] [2020-10-14 07:55:39,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:55:39,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:39,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:55:39,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:55:39,387 INFO L87 Difference]: Start difference. First operand 36887 states and 44019 transitions. Second operand 9 states. [2020-10-14 07:55:40,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:40,750 INFO L93 Difference]: Finished difference Result 44930 states and 53525 transitions. [2020-10-14 07:55:40,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:55:40,751 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2020-10-14 07:55:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:40,767 INFO L225 Difference]: With dead ends: 44930 [2020-10-14 07:55:40,767 INFO L226 Difference]: Without dead ends: 8073 [2020-10-14 07:55:40,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:55:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8073 states. [2020-10-14 07:55:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8073 to 7579. [2020-10-14 07:55:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7579 states. [2020-10-14 07:55:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 8697 transitions. [2020-10-14 07:55:41,336 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 8697 transitions. Word has length 150 [2020-10-14 07:55:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:41,336 INFO L479 AbstractCegarLoop]: Abstraction has 7579 states and 8697 transitions. [2020-10-14 07:55:41,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:55:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 8697 transitions. [2020-10-14 07:55:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-14 07:55:41,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:41,342 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:41,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 07:55:41,343 INFO L427 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:41,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash -259144365, now seen corresponding path program 1 times [2020-10-14 07:55:41,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:41,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800208188] [2020-10-14 07:55:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:55:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 07:55:46,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:55:46,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:55:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:46,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:46,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:46,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:46,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,764 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2020-10-14 07:55:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:46,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:55:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:55:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 07:55:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:46,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 07:55:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 07:55:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:46,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:55:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 07:55:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:46,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:55:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:46,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:55:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 07:55:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:46,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 07:55:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:55:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-14 07:55:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 07:55:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 07:55:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:46,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 07:55:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:46,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:46,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:46,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:46,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:46,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:46,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:46,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-10-14 07:55:46,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800208188] [2020-10-14 07:55:46,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:46,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:55:46,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588177334] [2020-10-14 07:55:46,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:55:46,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:46,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:55:46,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:55:46,958 INFO L87 Difference]: Start difference. First operand 7579 states and 8697 transitions. Second operand 15 states. [2020-10-14 07:55:47,810 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2020-10-14 07:55:48,824 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:55:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:49,697 INFO L93 Difference]: Finished difference Result 15071 states and 17309 transitions. [2020-10-14 07:55:49,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 07:55:49,698 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 188 [2020-10-14 07:55:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:49,711 INFO L225 Difference]: With dead ends: 15071 [2020-10-14 07:55:49,712 INFO L226 Difference]: Without dead ends: 7751 [2020-10-14 07:55:49,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=265, Invalid=1067, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 07:55:49,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7751 states. [2020-10-14 07:55:50,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7751 to 7579. [2020-10-14 07:55:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7579 states. [2020-10-14 07:55:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 8679 transitions. [2020-10-14 07:55:50,234 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 8679 transitions. Word has length 188 [2020-10-14 07:55:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:50,234 INFO L479 AbstractCegarLoop]: Abstraction has 7579 states and 8679 transitions. [2020-10-14 07:55:50,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:55:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 8679 transitions. [2020-10-14 07:55:50,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-14 07:55:50,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:50,240 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 07:55:50,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 07:55:50,240 INFO L427 AbstractCegarLoop]: === Iteration 26 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:50,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:50,241 INFO L82 PathProgramCache]: Analyzing trace with hash -489184544, now seen corresponding path program 1 times [2020-10-14 07:55:50,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:50,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014682779] [2020-10-14 07:55:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:50,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:51,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 07:55:55,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:55,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:55:55,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:55:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 07:55:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 07:55:55,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:55,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:55,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:55,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 07:55:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:55,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:55,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:55,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:55:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:55,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:55:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:55,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:55,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:55:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:55:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 07:55:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:55,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:55:55,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 07:55:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:55,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 07:55:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 07:55:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:55,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:55:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:55,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 07:55:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:55:55,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:55:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:55,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,897 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-10-14 07:55:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 07:55:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:55,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:55,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 07:55:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 07:55:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:55,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:55,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:55,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:56,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-14 07:55:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:56,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:56,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 07:55:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 07:55:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:56,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:56,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:56,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:56,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 51 proven. 39 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-14 07:55:56,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014682779] [2020-10-14 07:55:56,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:56,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 07:55:56,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462478795] [2020-10-14 07:55:56,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 07:55:56,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:56,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 07:55:56,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:55:56,106 INFO L87 Difference]: Start difference. First operand 7579 states and 8679 transitions. Second operand 20 states. [2020-10-14 07:55:56,329 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 07:55:57,427 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-14 07:55:59,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:59,394 INFO L93 Difference]: Finished difference Result 12499 states and 14363 transitions. [2020-10-14 07:55:59,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 07:55:59,395 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 188 [2020-10-14 07:55:59,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:59,408 INFO L225 Difference]: With dead ends: 12499 [2020-10-14 07:55:59,408 INFO L226 Difference]: Without dead ends: 7647 [2020-10-14 07:55:59,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=278, Invalid=1282, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 07:55:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2020-10-14 07:56:00,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 7579. [2020-10-14 07:56:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7579 states. [2020-10-14 07:56:00,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 8645 transitions. [2020-10-14 07:56:00,030 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 8645 transitions. Word has length 188 [2020-10-14 07:56:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:00,031 INFO L479 AbstractCegarLoop]: Abstraction has 7579 states and 8645 transitions. [2020-10-14 07:56:00,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 07:56:00,031 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 8645 transitions. [2020-10-14 07:56:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-14 07:56:00,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:00,036 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:00,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 07:56:00,037 INFO L427 AbstractCegarLoop]: === Iteration 27 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:00,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:00,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1045106611, now seen corresponding path program 1 times [2020-10-14 07:56:00,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:00,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548251765] [2020-10-14 07:56:00,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:00,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:00,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:01,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:01,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:03,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:03,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:04,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking...