/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=BIGGEST --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_opt-floodmax.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:57:38,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:57:38,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:57:38,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:57:38,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:57:38,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:57:38,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:57:38,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:57:38,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:57:38,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:57:38,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:57:38,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:57:38,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:57:38,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:57:38,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:57:38,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:57:38,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:57:38,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:57:38,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:57:38,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:57:38,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:57:38,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:57:38,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:57:38,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:57:38,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:57:38,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:57:38,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:57:38,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:57:38,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:57:38,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:57:38,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:57:38,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:57:38,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:57:38,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:57:38,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:57:38,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:57:38,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:57:38,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:57:38,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:57:38,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:57:38,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:57:38,897 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 [2020-10-12 18:57:38,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:57:38,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:57:38,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:57:38,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:57:38,948 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:57:38,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:57:38,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:57:38,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:57:38,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:57:38,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:57:38,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:57:38,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:57:38,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:57:38,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:57:38,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:57:38,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:57:38,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:57:38,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:57:38,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:57:38,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:57:38,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:57:38,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:57:38,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:57:38,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:57:38,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:57:38,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:57:38,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:57:38,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:57:38,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:57:38,954 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:57:39,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:57:39,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:57:39,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:57:39,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:57:39,295 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:57:39,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c [2020-10-12 18:57:39,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/466e8293f/82fa324301a94813b7e0994ef33d1a1e/FLAGca6b96f0f [2020-10-12 18:57:39,842 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:57:39,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c [2020-10-12 18:57:39,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/466e8293f/82fa324301a94813b7e0994ef33d1a1e/FLAGca6b96f0f [2020-10-12 18:57:40,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/466e8293f/82fa324301a94813b7e0994ef33d1a1e [2020-10-12 18:57:40,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:57:40,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:57:40,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:57:40,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:57:40,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:57:40,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63832a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40, skipping insertion in model container [2020-10-12 18:57:40,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:57:40,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:57:40,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:57:40,643 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:57:40,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:57:40,738 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:57:40,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40 WrapperNode [2020-10-12 18:57:40,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:57:40,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:57:40,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:57:40,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:57:40,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (1/1) ... [2020-10-12 18:57:40,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:57:40,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:57:40,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:57:40,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:57:40,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (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 [2020-10-12 18:57:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:57:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:57:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:57:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:57:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:57:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:57:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:57:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:57:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:57:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:57:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:57:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:57:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:57:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:57:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:57:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:57:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:57:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:57:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:57:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:57:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:57:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:57:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:57:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:57:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:57:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:57:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:57:41,710 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:57:41,710 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:57:41,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:57:41 BoogieIcfgContainer [2020-10-12 18:57:41,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:57:41,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:57:41,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:57:41,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:57:41,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:57:40" (1/3) ... [2020-10-12 18:57:41,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bd0ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:57:41, skipping insertion in model container [2020-10-12 18:57:41,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:57:40" (2/3) ... [2020-10-12 18:57:41,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bd0ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:57:41, skipping insertion in model container [2020-10-12 18:57:41,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:57:41" (3/3) ... [2020-10-12 18:57:41,725 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c [2020-10-12 18:57:41,737 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:57:41,746 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:57:41,762 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:57:41,789 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:57:41,789 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:57:41,789 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:57:41,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:57:41,790 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:57:41,790 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:57:41,790 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:57:41,790 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:57:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-10-12 18:57:41,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 18:57:41,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:41,830 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] [2020-10-12 18:57:41,831 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:41,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1583782225, now seen corresponding path program 1 times [2020-10-12 18:57:41,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:41,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485609450] [2020-10-12 18:57:41,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:42,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:42,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:57:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-12 18:57:42,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 18:57:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:42,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:57:42,880 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:42,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:42,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:42,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:42,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:42,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:57:42,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:42,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:42,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:42,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:42,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:42,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:57:42,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:42,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:57:42,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:42,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:42,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:42,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:42,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:42,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:57:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:42,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:42,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:42,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:42,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:57:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:43,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:57:43,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:43,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:43,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:43,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:57:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:43,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:57:43,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:43,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:43,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:57:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:43,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:57:43,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:43,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:43,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:43,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:57:43,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:43,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:57:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:43,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:43,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:43,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485609450] [2020-10-12 18:57:43,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:43,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:57:43,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559271768] [2020-10-12 18:57:43,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:57:43,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:43,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:57:43,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:57:43,298 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 6 states. [2020-10-12 18:57:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:44,507 INFO L93 Difference]: Finished difference Result 302 states and 480 transitions. [2020-10-12 18:57:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:57:44,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-12 18:57:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:44,523 INFO L225 Difference]: With dead ends: 302 [2020-10-12 18:57:44,523 INFO L226 Difference]: Without dead ends: 192 [2020-10-12 18:57:44,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:57:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-12 18:57:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2020-10-12 18:57:44,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-12 18:57:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 279 transitions. [2020-10-12 18:57:44,595 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 279 transitions. Word has length 65 [2020-10-12 18:57:44,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:44,596 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 279 transitions. [2020-10-12 18:57:44,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:57:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 279 transitions. [2020-10-12 18:57:44,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 18:57:44,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:44,599 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] [2020-10-12 18:57:44,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:57:44,600 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:44,600 INFO L82 PathProgramCache]: Analyzing trace with hash 554422927, now seen corresponding path program 1 times [2020-10-12 18:57:44,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:44,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859468329] [2020-10-12 18:57:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:44,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:57:45,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-12 18:57:45,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:57:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:57:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:57:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:45,426 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:45,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:45,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:57:45,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:45,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:45,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:57:45,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 18:57:45,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:57:45,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:45,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:57:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:45,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:57:45,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:57:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:45,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:57:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:57:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:45,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:45,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:45,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:57:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:45,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:45,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:45,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:57:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:45,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:45,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:45,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:45,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:45,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:57:45,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:45,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:57:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:45,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859468329] [2020-10-12 18:57:45,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:45,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:57:45,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023488923] [2020-10-12 18:57:45,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:57:45,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:45,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:57:45,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:57:45,863 INFO L87 Difference]: Start difference. First operand 174 states and 279 transitions. Second operand 12 states. [2020-10-12 18:57:46,380 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:57:46,592 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:46,917 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:47,115 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:57:48,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:48,767 INFO L93 Difference]: Finished difference Result 300 states and 472 transitions. [2020-10-12 18:57:48,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:57:48,767 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-12 18:57:48,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:48,770 INFO L225 Difference]: With dead ends: 300 [2020-10-12 18:57:48,770 INFO L226 Difference]: Without dead ends: 192 [2020-10-12 18:57:48,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:57:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-12 18:57:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2020-10-12 18:57:48,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-12 18:57:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2020-10-12 18:57:48,799 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 65 [2020-10-12 18:57:48,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:48,800 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2020-10-12 18:57:48,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:57:48,800 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2020-10-12 18:57:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:57:48,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:48,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:48,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:57:48,804 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:48,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:48,805 INFO L82 PathProgramCache]: Analyzing trace with hash 551989973, now seen corresponding path program 1 times [2020-10-12 18:57:48,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:48,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879005442] [2020-10-12 18:57:48,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:48,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:49,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:49,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:53,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:53,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 18:57:53,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:57:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:57:53,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:53,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:57:53,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:57:53,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:57:53,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,132 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:54,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:54,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:57:54,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:54,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:54,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 18:57:54,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:57:54,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:54,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:57:54,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:57:54,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:57:54,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:54,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:54,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:57:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:57:54,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:57:54,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:54,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:54,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:57:54,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:54,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879005442] [2020-10-12 18:57:54,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:54,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:57:54,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342127484] [2020-10-12 18:57:54,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:57:54,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:54,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:57:54,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:57:54,587 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand 13 states. [2020-10-12 18:57:54,798 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:55,247 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:55,475 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:57,703 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:57:57,915 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:58,090 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:01,209 INFO L93 Difference]: Finished difference Result 1005 states and 1531 transitions. [2020-10-12 18:58:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-12 18:58:01,211 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-12 18:58:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:01,226 INFO L225 Difference]: With dead ends: 1005 [2020-10-12 18:58:01,226 INFO L226 Difference]: Without dead ends: 903 [2020-10-12 18:58:01,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=574, Invalid=1976, Unknown=0, NotChecked=0, Total=2550 [2020-10-12 18:58:01,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-10-12 18:58:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 765. [2020-10-12 18:58:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-10-12 18:58:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1167 transitions. [2020-10-12 18:58:01,312 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1167 transitions. Word has length 94 [2020-10-12 18:58:01,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:01,313 INFO L479 AbstractCegarLoop]: Abstraction has 765 states and 1167 transitions. [2020-10-12 18:58:01,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:58:01,313 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1167 transitions. [2020-10-12 18:58:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 18:58:01,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:01,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:01,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:58:01,318 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:01,318 INFO L82 PathProgramCache]: Analyzing trace with hash -842915964, now seen corresponding path program 1 times [2020-10-12 18:58:01,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:01,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954667218] [2020-10-12 18:58:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 18:58:06,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:58:06,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:58:06,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:58:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 18:58:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:06,589 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:06,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:58:06,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:06,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 18:58:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:58:06,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:06,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:06,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:06,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:06,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:58:06,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:06,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:58:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:06,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:58:06,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:58:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:06,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:58:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:06,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:58:06,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:06,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:58:06,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:06,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:58:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:06,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:58:06,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:58:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:58:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:06,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954667218] [2020-10-12 18:58:06,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:06,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:58:06,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268433631] [2020-10-12 18:58:06,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:58:06,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:06,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:58:06,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:58:06,945 INFO L87 Difference]: Start difference. First operand 765 states and 1167 transitions. Second operand 10 states. [2020-10-12 18:58:07,137 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:07,551 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:09,590 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:09,756 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:12,395 INFO L93 Difference]: Finished difference Result 2970 states and 4570 transitions. [2020-10-12 18:58:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:58:12,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 95 [2020-10-12 18:58:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:12,426 INFO L225 Difference]: With dead ends: 2970 [2020-10-12 18:58:12,426 INFO L226 Difference]: Without dead ends: 2277 [2020-10-12 18:58:12,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 18:58:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2020-10-12 18:58:12,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 1920. [2020-10-12 18:58:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2020-10-12 18:58:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2947 transitions. [2020-10-12 18:58:12,607 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2947 transitions. Word has length 95 [2020-10-12 18:58:12,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:12,608 INFO L479 AbstractCegarLoop]: Abstraction has 1920 states and 2947 transitions. [2020-10-12 18:58:12,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:58:12,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2947 transitions. [2020-10-12 18:58:12,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 18:58:12,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:12,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:12,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:58:12,612 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:12,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:12,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1187011988, now seen corresponding path program 1 times [2020-10-12 18:58:12,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:12,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948656911] [2020-10-12 18:58:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:12,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:14,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 18:58:17,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:58:17,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:58:17,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:58:17,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:58:17,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 18:58:17,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:17,861 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:17,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:17,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:17,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:17,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:58:17,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:17,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:17,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:17,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 18:58:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:58:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:17,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:17,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:18,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:58:18,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:18,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:18,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:18,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:58:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:18,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:58:18,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:58:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:18,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:58:18,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:18,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:18,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:58:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:58:18,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:58:18,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:58:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:58:18,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:18,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948656911] [2020-10-12 18:58:18,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:18,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:58:18,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005747675] [2020-10-12 18:58:18,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:58:18,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:18,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:58:18,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:58:18,255 INFO L87 Difference]: Start difference. First operand 1920 states and 2947 transitions. Second operand 15 states. [2020-10-12 18:58:18,509 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:18,980 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:19,160 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:19,352 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:21,096 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:21,449 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:21,640 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:21,894 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:22,372 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:22,667 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:27,969 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:29,183 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:30,570 INFO L93 Difference]: Finished difference Result 14203 states and 22095 transitions. [2020-10-12 18:58:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-12 18:58:30,571 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 96 [2020-10-12 18:58:30,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:30,653 INFO L225 Difference]: With dead ends: 14203 [2020-10-12 18:58:30,653 INFO L226 Difference]: Without dead ends: 12355 [2020-10-12 18:58:30,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1182, Invalid=5298, Unknown=0, NotChecked=0, Total=6480 [2020-10-12 18:58:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12355 states. [2020-10-12 18:58:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12355 to 9330. [2020-10-12 18:58:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9330 states. [2020-10-12 18:58:31,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9330 states to 9330 states and 14518 transitions. [2020-10-12 18:58:31,288 INFO L78 Accepts]: Start accepts. Automaton has 9330 states and 14518 transitions. Word has length 96 [2020-10-12 18:58:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:31,290 INFO L479 AbstractCegarLoop]: Abstraction has 9330 states and 14518 transitions. [2020-10-12 18:58:31,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:58:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9330 states and 14518 transitions. [2020-10-12 18:58:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 18:58:31,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:31,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:31,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:58:31,293 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:31,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:31,294 INFO L82 PathProgramCache]: Analyzing trace with hash 979228219, now seen corresponding path program 1 times [2020-10-12 18:58:31,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:31,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246658641] [2020-10-12 18:58:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:58:36,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:58:36,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:58:36,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:58:36,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:58:36,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:58:36,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:36,567 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:36,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:36,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:36,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:36,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:58:36,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:36,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:36,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:36,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 18:58:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:58:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:36,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:36,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:36,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:58:36,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:36,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:36,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:58:36,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:36,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:58:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:36,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:36,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:36,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:58:36,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:36,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:36,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:36,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:58:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:36,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:36,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:36,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:36,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:58:36,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:36,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:36,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:58:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:37,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:37,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:37,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:37,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:58:37,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:58:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:58:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:37,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246658641] [2020-10-12 18:58:37,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:37,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:58:37,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032306998] [2020-10-12 18:58:37,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:58:37,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:37,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:58:37,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:58:37,096 INFO L87 Difference]: Start difference. First operand 9330 states and 14518 transitions. Second operand 14 states. [2020-10-12 18:58:37,422 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:38,078 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:38,246 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:38,418 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:40,589 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:40,981 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:41,155 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:41,459 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:41,663 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:47,001 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:47,205 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:49,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:49,394 INFO L93 Difference]: Finished difference Result 27325 states and 42714 transitions. [2020-10-12 18:58:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-12 18:58:49,395 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 97 [2020-10-12 18:58:49,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:49,508 INFO L225 Difference]: With dead ends: 27325 [2020-10-12 18:58:49,508 INFO L226 Difference]: Without dead ends: 18152 [2020-10-12 18:58:49,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1075, Invalid=4037, Unknown=0, NotChecked=0, Total=5112 [2020-10-12 18:58:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18152 states. [2020-10-12 18:58:50,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18152 to 14912. [2020-10-12 18:58:50,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14912 states. [2020-10-12 18:58:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14912 states to 14912 states and 23252 transitions. [2020-10-12 18:58:50,440 INFO L78 Accepts]: Start accepts. Automaton has 14912 states and 23252 transitions. Word has length 97 [2020-10-12 18:58:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:50,440 INFO L479 AbstractCegarLoop]: Abstraction has 14912 states and 23252 transitions. [2020-10-12 18:58:50,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:58:50,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14912 states and 23252 transitions. [2020-10-12 18:58:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 18:58:50,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:50,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:50,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:58:50,444 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:50,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:50,444 INFO L82 PathProgramCache]: Analyzing trace with hash -820160461, now seen corresponding path program 1 times [2020-10-12 18:58:50,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:50,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698882804] [2020-10-12 18:58:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:50,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:50,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:50,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:50,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:53,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:54,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:54,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 18:58:54,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:58:54,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4516 [2020-10-12 18:58:54,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:58:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:58:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:58:54,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:55,218 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:55,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:55,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:58:55,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:55,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:55,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:55,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:55,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 18:58:55,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:55,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:55,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:58:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:55,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:55,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:55,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:55,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:55,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:58:55,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:55,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:58:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:55,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:58:55,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:55,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:55,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:55,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:55,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:58:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:55,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:58:55,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:55,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:55,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:58:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:55,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:55,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:55,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:58:55,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:58:55,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:58:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:55,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698882804] [2020-10-12 18:58:55,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:55,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:58:55,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970528163] [2020-10-12 18:58:55,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:58:55,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:55,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:58:55,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:58:55,619 INFO L87 Difference]: Start difference. First operand 14912 states and 23252 transitions. Second operand 13 states. [2020-10-12 18:58:55,811 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:56,250 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:56,418 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:57,191 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:57,932 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:59,216 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:59:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:03,981 INFO L93 Difference]: Finished difference Result 37535 states and 58541 transitions. [2020-10-12 18:59:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 18:59:03,982 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 99 [2020-10-12 18:59:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:04,263 INFO L225 Difference]: With dead ends: 37535 [2020-10-12 18:59:04,264 INFO L226 Difference]: Without dead ends: 22780 [2020-10-12 18:59:04,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2020-10-12 18:59:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22780 states. [2020-10-12 18:59:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22780 to 19112. [2020-10-12 18:59:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19112 states. [2020-10-12 18:59:05,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19112 states to 19112 states and 29908 transitions. [2020-10-12 18:59:05,178 INFO L78 Accepts]: Start accepts. Automaton has 19112 states and 29908 transitions. Word has length 99 [2020-10-12 18:59:05,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:05,178 INFO L479 AbstractCegarLoop]: Abstraction has 19112 states and 29908 transitions. [2020-10-12 18:59:05,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:59:05,179 INFO L276 IsEmpty]: Start isEmpty. Operand 19112 states and 29908 transitions. [2020-10-12 18:59:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 18:59:05,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:05,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:05,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:59:05,181 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:05,181 INFO L82 PathProgramCache]: Analyzing trace with hash 795607957, now seen corresponding path program 1 times [2020-10-12 18:59:05,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:05,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363822304] [2020-10-12 18:59:05,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:05,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:05,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:07,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:08,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:08,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3703 [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:59:08,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,099 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:09,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:09,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:59:09,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:09,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:09,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:59:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:09,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:59:09,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:59:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:09,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:09,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:09,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:09,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:59:09,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:09,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:59:09,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:59:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:09,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:59:09,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:09,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:59:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:09,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:09,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:09,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:59:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:09,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:09,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:59:09,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:09,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:09,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:09,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:09,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:59:09,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:09,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:09,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363822304] [2020-10-12 18:59:09,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:09,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:59:09,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072066424] [2020-10-12 18:59:09,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:59:09,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:09,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:59:09,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:59:09,400 INFO L87 Difference]: Start difference. First operand 19112 states and 29908 transitions. Second operand 9 states. [2020-10-12 18:59:09,588 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:11,419 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:59:12,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:12,684 INFO L93 Difference]: Finished difference Result 48998 states and 76385 transitions. [2020-10-12 18:59:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:59:12,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-10-12 18:59:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:12,816 INFO L225 Difference]: With dead ends: 48998 [2020-10-12 18:59:12,816 INFO L226 Difference]: Without dead ends: 29972 [2020-10-12 18:59:12,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:59:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29972 states. [2020-10-12 18:59:14,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29972 to 24405. [2020-10-12 18:59:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24405 states. [2020-10-12 18:59:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24405 states to 24405 states and 38122 transitions. [2020-10-12 18:59:14,079 INFO L78 Accepts]: Start accepts. Automaton has 24405 states and 38122 transitions. Word has length 100 [2020-10-12 18:59:14,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:14,080 INFO L479 AbstractCegarLoop]: Abstraction has 24405 states and 38122 transitions. [2020-10-12 18:59:14,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:59:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 24405 states and 38122 transitions. [2020-10-12 18:59:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 18:59:14,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:14,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:14,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:59:14,082 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:14,083 INFO L82 PathProgramCache]: Analyzing trace with hash 2089691484, now seen corresponding path program 1 times [2020-10-12 18:59:14,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:14,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315259077] [2020-10-12 18:59:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:14,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:14,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:15,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:18,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 18:59:19,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:59:19,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 18:59:19,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:59:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:59:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:59:19,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,313 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:19,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:19,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:59:19,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:19,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 18:59:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:59:19,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:19,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:19,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:19,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:59:19,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:59:19,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:59:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:59:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:19,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:59:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:19,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:19,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:59:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:19,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:19,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:19,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:59:19,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:19,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:59:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:59:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:19,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315259077] [2020-10-12 18:59:19,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:19,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:59:19,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730301651] [2020-10-12 18:59:19,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:59:19,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:19,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:59:19,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:59:19,649 INFO L87 Difference]: Start difference. First operand 24405 states and 38122 transitions. Second operand 13 states. [2020-10-12 18:59:20,011 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-12 18:59:20,478 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:20,648 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:20,881 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 18:59:21,161 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 18:59:21,519 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-12 18:59:22,288 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:22,555 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:22,868 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:59:26,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:26,775 INFO L93 Difference]: Finished difference Result 43384 states and 67770 transitions. [2020-10-12 18:59:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 18:59:26,776 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 100 [2020-10-12 18:59:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:26,905 INFO L225 Difference]: With dead ends: 43384 [2020-10-12 18:59:26,905 INFO L226 Difference]: Without dead ends: 36124 [2020-10-12 18:59:26,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=478, Invalid=1592, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 18:59:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36124 states. [2020-10-12 18:59:28,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36124 to 30379. [2020-10-12 18:59:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30379 states. [2020-10-12 18:59:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30379 states to 30379 states and 47411 transitions. [2020-10-12 18:59:28,289 INFO L78 Accepts]: Start accepts. Automaton has 30379 states and 47411 transitions. Word has length 100 [2020-10-12 18:59:28,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:28,290 INFO L479 AbstractCegarLoop]: Abstraction has 30379 states and 47411 transitions. [2020-10-12 18:59:28,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:59:28,290 INFO L276 IsEmpty]: Start isEmpty. Operand 30379 states and 47411 transitions. [2020-10-12 18:59:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-12 18:59:28,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:28,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:28,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:59:28,294 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:28,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:28,294 INFO L82 PathProgramCache]: Analyzing trace with hash -418809379, now seen corresponding path program 1 times [2020-10-12 18:59:28,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:28,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146571890] [2020-10-12 18:59:28,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:28,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:28,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:28,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:28,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:29,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:59:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:59:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:59:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:59:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:59:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:59:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,505 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:33,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:33,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:59:33,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:33,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:33,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:59:33,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:59:33,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:33,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:59:33,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:33,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:59:33,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:59:33,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:59:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:59:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:59:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:33,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:33,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:33,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:59:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:33,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:33,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:59:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:33,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:33,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:33,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:59:33,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:33,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146571890] [2020-10-12 18:59:33,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:33,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:59:33,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109986643] [2020-10-12 18:59:33,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:59:33,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:33,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:59:33,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:59:33,739 INFO L87 Difference]: Start difference. First operand 30379 states and 47411 transitions. Second operand 10 states. [2020-10-12 18:59:33,932 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:37,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:37,283 INFO L93 Difference]: Finished difference Result 59376 states and 92059 transitions. [2020-10-12 18:59:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:59:37,284 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-12 18:59:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:37,411 INFO L225 Difference]: With dead ends: 59376 [2020-10-12 18:59:37,411 INFO L226 Difference]: Without dead ends: 37032 [2020-10-12 18:59:37,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:59:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37032 states. [2020-10-12 18:59:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37032 to 29077. [2020-10-12 18:59:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29077 states. [2020-10-12 18:59:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29077 states to 29077 states and 44965 transitions. [2020-10-12 18:59:38,792 INFO L78 Accepts]: Start accepts. Automaton has 29077 states and 44965 transitions. Word has length 101 [2020-10-12 18:59:38,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:38,792 INFO L479 AbstractCegarLoop]: Abstraction has 29077 states and 44965 transitions. [2020-10-12 18:59:38,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:59:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 29077 states and 44965 transitions. [2020-10-12 18:59:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-12 18:59:38,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:38,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:38,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:59:38,795 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:38,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:38,795 INFO L82 PathProgramCache]: Analyzing trace with hash -518207519, now seen corresponding path program 1 times [2020-10-12 18:59:38,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:38,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956516129] [2020-10-12 18:59:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:38,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:38,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:38,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:38,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:38,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:39,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:39,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:39,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:59:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 18:59:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,004 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:44,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:44,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:44,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:44,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:59:44,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:44,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:44,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:59:44,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:44,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:44,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:59:44,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:44,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:44,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:44,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:59:44,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:59:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:59:44,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:59:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:59:44,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:59:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:59:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:44,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:59:44,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:59:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:44,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:59:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:44,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956516129] [2020-10-12 18:59:44,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:44,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:59:44,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956937109] [2020-10-12 18:59:44,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:59:44,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:44,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:59:44,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:59:44,311 INFO L87 Difference]: Start difference. First operand 29077 states and 44965 transitions. Second operand 13 states. [2020-10-12 18:59:44,498 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:44,993 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:45,164 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:46,056 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-10-12 18:59:46,470 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-12 18:59:46,996 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-12 18:59:47,153 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:59:47,458 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-10-12 18:59:47,791 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-12 18:59:48,601 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-12 18:59:48,751 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:59:49,025 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 18:59:49,268 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-12 18:59:49,536 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 18:59:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:50,526 INFO L93 Difference]: Finished difference Result 51817 states and 80017 transitions. [2020-10-12 18:59:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:59:50,527 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-12 18:59:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:50,647 INFO L225 Difference]: With dead ends: 51817 [2020-10-12 18:59:50,647 INFO L226 Difference]: Without dead ends: 33345 [2020-10-12 18:59:50,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:59:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33345 states. [2020-10-12 18:59:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33345 to 28218. [2020-10-12 18:59:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28218 states. [2020-10-12 18:59:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28218 states to 28218 states and 43615 transitions. [2020-10-12 18:59:51,918 INFO L78 Accepts]: Start accepts. Automaton has 28218 states and 43615 transitions. Word has length 102 [2020-10-12 18:59:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:51,918 INFO L479 AbstractCegarLoop]: Abstraction has 28218 states and 43615 transitions. [2020-10-12 18:59:51,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:59:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 28218 states and 43615 transitions. [2020-10-12 18:59:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:59:51,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:51,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:51,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:59:51,922 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1840410244, now seen corresponding path program 1 times [2020-10-12 18:59:51,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:51,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972726753] [2020-10-12 18:59:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:51,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:51,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:52,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:52,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:56,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:56,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:59:56,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:59:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4834 [2020-10-12 18:59:56,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:59:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 18:59:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 18:59:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:56,968 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:56,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:56,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:56,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:56,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:56,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:59:56,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:56,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:56,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:56,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:56,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:56,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:56,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:57,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:57,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:57,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:59:57,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:59:57,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:57,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:57,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:57,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:57,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:57,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:57,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:59:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:57,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:59:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:57,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:57,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:57,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:57,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:59:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:57,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:57,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:57,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:59:57,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:57,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:59:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:57,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 18:59:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:59:57,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:57,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972726753] [2020-10-12 18:59:57,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:57,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:59:57,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253512751] [2020-10-12 18:59:57,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:59:57,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:57,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:59:57,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:59:57,276 INFO L87 Difference]: Start difference. First operand 28218 states and 43615 transitions. Second operand 13 states. [2020-10-12 18:59:57,459 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:57,955 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:58,136 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:59,318 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:59:59,974 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 19:00:01,906 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 19:00:08,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:08,042 INFO L93 Difference]: Finished difference Result 134300 states and 210079 transitions. [2020-10-12 19:00:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-12 19:00:08,043 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-12 19:00:08,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:08,447 INFO L225 Difference]: With dead ends: 134300 [2020-10-12 19:00:08,447 INFO L226 Difference]: Without dead ends: 106237 [2020-10-12 19:00:08,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=540, Invalid=1716, Unknown=0, NotChecked=0, Total=2256 [2020-10-12 19:00:08,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106237 states. [2020-10-12 19:00:12,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106237 to 89038. [2020-10-12 19:00:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89038 states. [2020-10-12 19:00:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89038 states to 89038 states and 139424 transitions. [2020-10-12 19:00:14,484 INFO L78 Accepts]: Start accepts. Automaton has 89038 states and 139424 transitions. Word has length 104 [2020-10-12 19:00:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:14,485 INFO L479 AbstractCegarLoop]: Abstraction has 89038 states and 139424 transitions. [2020-10-12 19:00:14,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:00:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 89038 states and 139424 transitions. [2020-10-12 19:00:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 19:00:14,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:14,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:14,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 19:00:14,488 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:14,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:14,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1285897850, now seen corresponding path program 1 times [2020-10-12 19:00:14,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:14,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571736282] [2020-10-12 19:00:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:14,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:00:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,706 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 19:00:19,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:19,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:19,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 19:00:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 19:00:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:19,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:19,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:00:19,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:19,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 19:00:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:19,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:19,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 19:00:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 19:00:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 19:00:19,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 19:00:19,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 19:00:19,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 19:00:19,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 19:00:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:19,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 19:00:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:19,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:19,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:00:19,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:20,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:20,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571736282] [2020-10-12 19:00:20,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:20,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:00:20,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942098220] [2020-10-12 19:00:20,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:00:20,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:20,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:00:20,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:00:20,020 INFO L87 Difference]: Start difference. First operand 89038 states and 139424 transitions. Second operand 11 states. [2020-10-12 19:00:20,216 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 19:00:20,701 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 19:00:23,023 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 19:00:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:27,297 INFO L93 Difference]: Finished difference Result 179654 states and 280961 transitions. [2020-10-12 19:00:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:00:27,297 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2020-10-12 19:00:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:27,591 INFO L225 Difference]: With dead ends: 179654 [2020-10-12 19:00:27,592 INFO L226 Difference]: Without dead ends: 119638 [2020-10-12 19:00:27,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:00:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119638 states. [2020-10-12 19:00:33,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119638 to 100563. [2020-10-12 19:00:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100563 states. [2020-10-12 19:00:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100563 states to 100563 states and 157217 transitions. [2020-10-12 19:00:34,004 INFO L78 Accepts]: Start accepts. Automaton has 100563 states and 157217 transitions. Word has length 104 [2020-10-12 19:00:34,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:34,005 INFO L479 AbstractCegarLoop]: Abstraction has 100563 states and 157217 transitions. [2020-10-12 19:00:34,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:00:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 100563 states and 157217 transitions. [2020-10-12 19:00:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 19:00:34,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:34,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:34,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 19:00:34,007 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:34,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:34,007 INFO L82 PathProgramCache]: Analyzing trace with hash 854814215, now seen corresponding path program 1 times [2020-10-12 19:00:34,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:34,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786905743] [2020-10-12 19:00:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:34,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:34,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:34,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:34,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:00:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 19:00:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 19:00:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,235 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 19:00:39,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:39,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 19:00:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:39,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 19:00:39,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:39,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:39,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 19:00:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:39,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:39,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:39,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 19:00:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 19:00:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:39,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 19:00:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:39,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:39,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:39,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 19:00:39,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:39,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:39,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:00:39,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:39,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786905743] [2020-10-12 19:00:39,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:39,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:00:39,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407022416] [2020-10-12 19:00:39,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:00:39,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:00:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:00:39,430 INFO L87 Difference]: Start difference. First operand 100563 states and 157217 transitions. Second operand 12 states. [2020-10-12 19:00:41,585 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 19:00:41,773 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 19:00:42,021 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 19:00:42,215 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 19:00:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:45,930 INFO L93 Difference]: Finished difference Result 124152 states and 195735 transitions. [2020-10-12 19:00:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:00:45,931 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2020-10-12 19:00:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:46,256 INFO L225 Difference]: With dead ends: 124152 [2020-10-12 19:00:46,256 INFO L226 Difference]: Without dead ends: 124150 [2020-10-12 19:00:46,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-12 19:00:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124150 states. [2020-10-12 19:00:52,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124150 to 102570. [2020-10-12 19:00:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102570 states. [2020-10-12 19:00:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102570 states to 102570 states and 159438 transitions. [2020-10-12 19:00:53,143 INFO L78 Accepts]: Start accepts. Automaton has 102570 states and 159438 transitions. Word has length 105 [2020-10-12 19:00:53,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:53,143 INFO L479 AbstractCegarLoop]: Abstraction has 102570 states and 159438 transitions. [2020-10-12 19:00:53,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:00:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 102570 states and 159438 transitions. [2020-10-12 19:00:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 19:00:53,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:53,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:53,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 19:00:53,145 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:53,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:53,146 INFO L82 PathProgramCache]: Analyzing trace with hash 851496575, now seen corresponding path program 1 times [2020-10-12 19:00:53,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:53,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016423849] [2020-10-12 19:00:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:53,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:53,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 19:00:58,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:00:58,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:00:58,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:58,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 19:00:58,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:00:58,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,364 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 19:00:58,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 19:00:58,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:00:58,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 19:00:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 19:00:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 19:00:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:58,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:58,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 19:00:58,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 19:00:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:58,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:00:58,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 19:00:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 19:00:58,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 19:00:58,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 19:00:58,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:58,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:58,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 19:00:58,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 19:00:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:58,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 19:00:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:00:58,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:58,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016423849] [2020-10-12 19:00:58,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:58,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:00:58,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592014844] [2020-10-12 19:00:58,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:00:58,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:58,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:00:58,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:00:58,618 INFO L87 Difference]: Start difference. First operand 102570 states and 159438 transitions. Second operand 11 states. [2020-10-12 19:00:58,945 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 158 [2020-10-12 19:00:59,684 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 19:01:01,037 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 19:01:07,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:07,935 INFO L93 Difference]: Finished difference Result 241337 states and 375651 transitions. [2020-10-12 19:01:07,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:01:07,936 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 105 [2020-10-12 19:01:07,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:08,315 INFO L225 Difference]: With dead ends: 241337 [2020-10-12 19:01:08,315 INFO L226 Difference]: Without dead ends: 141917 [2020-10-12 19:01:08,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:01:08,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141917 states.