/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:20:34,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:20:34,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:20:34,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:20:34,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:20:34,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:20:34,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:20:34,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:20:34,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:20:34,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:20:34,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:20:34,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:20:34,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:20:34,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:20:34,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:20:34,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:20:34,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:20:34,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:20:34,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:20:34,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:20:34,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:20:34,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:20:34,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:20:34,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:20:34,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:20:34,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:20:34,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:20:34,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:20:34,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:20:34,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:20:34,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:20:34,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:20:34,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:20:34,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:20:34,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:20:34,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:20:34,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:20:34,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:20:34,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:20:34,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:20:34,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:20:34,955 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 [2020-10-15 02:20:35,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:20:35,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:20:35,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:20:35,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:20:35,006 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:20:35,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:20:35,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:20:35,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:20:35,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:20:35,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:20:35,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:20:35,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:20:35,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:20:35,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:20:35,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:20:35,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:20:35,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:20:35,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:20:35,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:20:35,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:20:35,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:20:35,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:20:35,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:20:35,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:20:35,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:20:35,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:20:35,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:20:35,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:20:35,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:20:35,014 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:20:35,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:20:35,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:20:35,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:20:35,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:20:35,353 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:20:35,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-15 02:20:35,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/104c1662e/a3bd61bbb6de41ac94121c8908eca91a/FLAGa4910f818 [2020-10-15 02:20:35,891 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:20:35,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-15 02:20:35,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/104c1662e/a3bd61bbb6de41ac94121c8908eca91a/FLAGa4910f818 [2020-10-15 02:20:36,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/104c1662e/a3bd61bbb6de41ac94121c8908eca91a [2020-10-15 02:20:36,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:20:36,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:20:36,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:20:36,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:20:36,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:20:36,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f750b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36, skipping insertion in model container [2020-10-15 02:20:36,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:20:36,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:20:36,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:20:36,749 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:20:36,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:20:36,844 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:20:36,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36 WrapperNode [2020-10-15 02:20:36,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:20:36,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:20:36,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:20:36,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:20:36,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:20:36,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:20:36,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:20:36,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:20:36,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:20:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:20:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:20:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:20:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:20:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:20:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:20:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:20:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:20:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:20:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:20:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:20:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:20:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:20:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:20:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:20:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:20:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:20:37,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:20:37,717 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:20:37,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:37 BoogieIcfgContainer [2020-10-15 02:20:37,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:20:37,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:20:37,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:20:37,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:20:37,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:20:36" (1/3) ... [2020-10-15 02:20:37,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d24f455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:37, skipping insertion in model container [2020-10-15 02:20:37,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36" (2/3) ... [2020-10-15 02:20:37,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d24f455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:37, skipping insertion in model container [2020-10-15 02:20:37,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:37" (3/3) ... [2020-10-15 02:20:37,732 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2020-10-15 02:20:37,743 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:20:37,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:20:37,766 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:20:37,791 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:20:37,792 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:20:37,792 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:20:37,792 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:20:37,792 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:20:37,793 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:20:37,793 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:20:37,793 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:20:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-15 02:20:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:20:37,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:37,828 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] [2020-10-15 02:20:37,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:37,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1364421405, now seen corresponding path program 1 times [2020-10-15 02:20:37,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:37,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411655364] [2020-10-15 02:20:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:38,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:38,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:20:38,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:38,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-15 02:20:38,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:38,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:20:38,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:38,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:20:38,787 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:38,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:38,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:38,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:38,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:38,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:20:38,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:38,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:38,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:38,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:38,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:38,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:38,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:20:38,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:38,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:20:38,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:38,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:38,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:20:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:38,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:38,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:38,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:38,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:38,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:20:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:38,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:38,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:38,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:38,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:38,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:38,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:38,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:20:39,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:20:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:39,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:39,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:39,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:20:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:39,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:39,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:39,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411655364] [2020-10-15 02:20:39,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:39,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:20:39,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382553352] [2020-10-15 02:20:39,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:20:39,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:39,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:20:39,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:20:39,120 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 6 states. [2020-10-15 02:20:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:40,124 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2020-10-15 02:20:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:20:40,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-15 02:20:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:40,139 INFO L225 Difference]: With dead ends: 258 [2020-10-15 02:20:40,139 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 02:20:40,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 02:20:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-10-15 02:20:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 02:20:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 243 transitions. [2020-10-15 02:20:40,202 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 243 transitions. Word has length 58 [2020-10-15 02:20:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:40,203 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 243 transitions. [2020-10-15 02:20:40,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:20:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2020-10-15 02:20:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:20:40,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:40,207 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] [2020-10-15 02:20:40,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:20:40,207 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:40,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1292034847, now seen corresponding path program 1 times [2020-10-15 02:20:40,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:40,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138288991] [2020-10-15 02:20:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:40,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:40,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:20:40,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:40,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-10-15 02:20:40,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:40,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:20:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:20:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:40,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:40,913 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:40,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:40,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:40,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:40,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:40,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:40,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:40,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:40,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:40,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:40,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:40,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:20:41,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:20:41,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:20:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:20:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:41,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:20:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:41,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:20:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:41,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:20:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:41,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:41,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138288991] [2020-10-15 02:20:41,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:41,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:20:41,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209456362] [2020-10-15 02:20:41,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:20:41,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:41,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:20:41,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:20:41,168 INFO L87 Difference]: Start difference. First operand 150 states and 243 transitions. Second operand 10 states. [2020-10-15 02:20:41,574 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:41,752 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:20:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:42,979 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2020-10-15 02:20:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:20:42,980 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-15 02:20:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:42,984 INFO L225 Difference]: With dead ends: 262 [2020-10-15 02:20:42,984 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 02:20:42,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:20:42,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 02:20:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2020-10-15 02:20:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 02:20:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-10-15 02:20:43,013 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 58 [2020-10-15 02:20:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:43,013 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-10-15 02:20:43,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:20:43,013 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2020-10-15 02:20:43,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:20:43,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:43,017 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] [2020-10-15 02:20:43,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:20:43,017 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:43,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1402954698, now seen corresponding path program 1 times [2020-10-15 02:20:43,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:43,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860931528] [2020-10-15 02:20:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:43,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:43,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 02:20:48,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:20:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 02:20:48,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:48,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:20:48,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:20:48,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:20:48,275 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:48,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:48,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:20:48,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:48,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:48,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:20:48,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:48,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:20:48,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:48,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:48,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:48,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:48,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:48,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:48,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:48,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:48,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:48,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:48,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:20:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:48,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:20:48,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:20:48,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:48,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:20:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:48,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:48,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:48,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860931528] [2020-10-15 02:20:48,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:48,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:48,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884003394] [2020-10-15 02:20:48,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:48,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:48,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:48,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:48,670 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand 9 states. [2020-10-15 02:20:48,835 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:50,500 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:50,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:50,666 INFO L93 Difference]: Finished difference Result 342 states and 512 transitions. [2020-10-15 02:20:50,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:20:50,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 02:20:50,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:50,671 INFO L225 Difference]: With dead ends: 342 [2020-10-15 02:20:50,672 INFO L226 Difference]: Without dead ends: 257 [2020-10-15 02:20:50,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:20:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-15 02:20:50,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 228. [2020-10-15 02:20:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-15 02:20:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 337 transitions. [2020-10-15 02:20:50,707 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 337 transitions. Word has length 84 [2020-10-15 02:20:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:50,708 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 337 transitions. [2020-10-15 02:20:50,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 337 transitions. [2020-10-15 02:20:50,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:20:50,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:50,711 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] [2020-10-15 02:20:50,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:20:50,711 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:50,712 INFO L82 PathProgramCache]: Analyzing trace with hash 274313221, now seen corresponding path program 1 times [2020-10-15 02:20:50,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:50,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705290861] [2020-10-15 02:20:50,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:50,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:51,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:20:55,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:20:55,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:20:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,929 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:55,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:55,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:56,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:56,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:20:56,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:56,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:20:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:56,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:56,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:56,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:56,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:56,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:56,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:20:56,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:56,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:56,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:56,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:56,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:56,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:56,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:56,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:56,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:20:56,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:56,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:20:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:56,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:56,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:56,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:56,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:20:56,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:56,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:20:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:20:56,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:56,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:20:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:56,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:56,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:56,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:56,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:56,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:56,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:56,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:56,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:56,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:56,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:56,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705290861] [2020-10-15 02:20:56,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:56,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:56,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517643160] [2020-10-15 02:20:56,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:56,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:56,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:56,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:56,321 INFO L87 Difference]: Start difference. First operand 228 states and 337 transitions. Second operand 9 states. [2020-10-15 02:20:56,539 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:56,730 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:56,892 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:57,040 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:57,790 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:59,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:59,547 INFO L93 Difference]: Finished difference Result 698 states and 1043 transitions. [2020-10-15 02:20:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:20:59,549 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:20:59,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:59,552 INFO L225 Difference]: With dead ends: 698 [2020-10-15 02:20:59,553 INFO L226 Difference]: Without dead ends: 496 [2020-10-15 02:20:59,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-15 02:20:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 451. [2020-10-15 02:20:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-10-15 02:20:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 660 transitions. [2020-10-15 02:20:59,603 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 660 transitions. Word has length 86 [2020-10-15 02:20:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:59,604 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 660 transitions. [2020-10-15 02:20:59,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 660 transitions. [2020-10-15 02:20:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:20:59,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:59,607 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] [2020-10-15 02:20:59,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:20:59,607 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:59,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1376959237, now seen corresponding path program 1 times [2020-10-15 02:20:59,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:59,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616569804] [2020-10-15 02:20:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:02,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:21:04,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:21:04,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 02:21:04,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:04,812 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:04,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:04,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:04,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 02:21:04,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:04,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:21:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:04,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:04,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:05,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:05,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:05,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:05,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:05,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:05,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:05,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:05,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:05,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:05,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:05,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:21:05,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:05,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:21:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:05,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:21:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:05,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:05,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:05,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:05,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:05,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:05,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616569804] [2020-10-15 02:21:05,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:05,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:05,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534410545] [2020-10-15 02:21:05,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:05,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:05,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:05,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:05,118 INFO L87 Difference]: Start difference. First operand 451 states and 660 transitions. Second operand 9 states. [2020-10-15 02:21:05,284 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:05,482 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:21:05,698 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:21:06,239 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-15 02:21:06,905 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:09,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:09,012 INFO L93 Difference]: Finished difference Result 1573 states and 2284 transitions. [2020-10-15 02:21:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:09,012 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:21:09,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:09,019 INFO L225 Difference]: With dead ends: 1573 [2020-10-15 02:21:09,019 INFO L226 Difference]: Without dead ends: 1169 [2020-10-15 02:21:09,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:21:09,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-10-15 02:21:09,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1072. [2020-10-15 02:21:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-15 02:21:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1536 transitions. [2020-10-15 02:21:09,115 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1536 transitions. Word has length 86 [2020-10-15 02:21:09,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:09,115 INFO L479 AbstractCegarLoop]: Abstraction has 1072 states and 1536 transitions. [2020-10-15 02:21:09,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1536 transitions. [2020-10-15 02:21:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:21:09,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:09,119 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] [2020-10-15 02:21:09,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:21:09,120 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:09,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:09,120 INFO L82 PathProgramCache]: Analyzing trace with hash -164767344, now seen corresponding path program 1 times [2020-10-15 02:21:09,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:09,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247559299] [2020-10-15 02:21:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:09,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:10,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:21:14,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:21:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:21:14,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:21:14,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:14,331 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:14,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:14,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:14,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:21:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:21:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:14,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:14,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:14,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:14,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:21:14,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:14,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:14,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:21:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:14,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:14,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:14,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:14,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247559299] [2020-10-15 02:21:14,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:14,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:14,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213324181] [2020-10-15 02:21:14,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:14,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:14,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:14,635 INFO L87 Difference]: Start difference. First operand 1072 states and 1536 transitions. Second operand 9 states. [2020-10-15 02:21:14,813 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:15,007 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:21:15,249 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:21:15,556 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-15 02:21:16,458 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:18,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:18,953 INFO L93 Difference]: Finished difference Result 4031 states and 5769 transitions. [2020-10-15 02:21:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:18,954 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-10-15 02:21:18,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:18,970 INFO L225 Difference]: With dead ends: 4031 [2020-10-15 02:21:18,970 INFO L226 Difference]: Without dead ends: 2999 [2020-10-15 02:21:18,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:21:18,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2020-10-15 02:21:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2794. [2020-10-15 02:21:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2794 states. [2020-10-15 02:21:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3950 transitions. [2020-10-15 02:21:19,149 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3950 transitions. Word has length 87 [2020-10-15 02:21:19,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:19,150 INFO L479 AbstractCegarLoop]: Abstraction has 2794 states and 3950 transitions. [2020-10-15 02:21:19,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3950 transitions. [2020-10-15 02:21:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:21:19,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:19,160 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] [2020-10-15 02:21:19,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:21:19,161 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:19,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:19,161 INFO L82 PathProgramCache]: Analyzing trace with hash -554757119, now seen corresponding path program 1 times [2020-10-15 02:21:19,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:19,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016298171] [2020-10-15 02:21:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:20,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:21:24,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:21:24,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:21:24,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:24,363 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:24,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:24,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:24,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:24,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:24,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:24,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:24,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:21:24,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:24,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-15 02:21:24,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:21:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:21:24,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:24,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:21:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:24,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:24,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:24,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:21:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:24,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:24,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:24,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:24,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:21:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:24,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:21:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:24,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:21:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:24,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:24,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:24,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:24,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:24,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:24,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:24,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:24,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016298171] [2020-10-15 02:21:24,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:24,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:24,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24466715] [2020-10-15 02:21:24,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:24,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:24,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:24,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:24,746 INFO L87 Difference]: Start difference. First operand 2794 states and 3950 transitions. Second operand 10 states. [2020-10-15 02:21:24,986 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:25,292 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:25,609 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:25,849 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:26,075 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:21:26,247 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:21:26,443 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:21:26,631 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:21:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:30,464 INFO L93 Difference]: Finished difference Result 9199 states and 13435 transitions. [2020-10-15 02:21:30,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:21:30,470 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-15 02:21:30,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:30,501 INFO L225 Difference]: With dead ends: 9199 [2020-10-15 02:21:30,502 INFO L226 Difference]: Without dead ends: 6842 [2020-10-15 02:21:30,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:21:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6842 states. [2020-10-15 02:21:30,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6842 to 6430. [2020-10-15 02:21:30,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6430 states. [2020-10-15 02:21:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6430 states to 6430 states and 9293 transitions. [2020-10-15 02:21:30,957 INFO L78 Accepts]: Start accepts. Automaton has 6430 states and 9293 transitions. Word has length 87 [2020-10-15 02:21:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:30,958 INFO L479 AbstractCegarLoop]: Abstraction has 6430 states and 9293 transitions. [2020-10-15 02:21:30,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6430 states and 9293 transitions. [2020-10-15 02:21:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:21:30,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:30,976 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] [2020-10-15 02:21:30,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:21:30,976 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:30,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:30,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1655843498, now seen corresponding path program 1 times [2020-10-15 02:21:30,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:30,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361822760] [2020-10-15 02:21:30,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:31,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:31,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:31,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:35,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:35,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:35,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:35,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4917 [2020-10-15 02:21:35,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:35,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:35,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:21:35,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:36,173 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:36,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:36,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:36,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:36,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:36,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:36,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:36,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:36,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:36,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:36,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:36,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:36,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:36,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:21:36,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:36,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:36,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:21:36,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:36,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:36,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:36,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:36,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:36,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:36,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:36,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:36,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:36,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:36,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:36,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:36,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:36,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:36,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:36,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:36,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:36,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:36,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:36,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:36,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:21:36,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:36,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:21:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:36,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:36,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:36,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:36,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:36,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:36,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:36,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:36,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361822760] [2020-10-15 02:21:36,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:36,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:36,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534000010] [2020-10-15 02:21:36,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:36,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:36,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:36,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:36,540 INFO L87 Difference]: Start difference. First operand 6430 states and 9293 transitions. Second operand 9 states. [2020-10-15 02:21:36,714 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:36,890 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:37,150 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:37,315 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:37,882 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:39,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:39,726 INFO L93 Difference]: Finished difference Result 11958 states and 17182 transitions. [2020-10-15 02:21:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:21:39,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:21:39,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:39,757 INFO L225 Difference]: With dead ends: 11958 [2020-10-15 02:21:39,758 INFO L226 Difference]: Without dead ends: 6703 [2020-10-15 02:21:39,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2020-10-15 02:21:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 4075. [2020-10-15 02:21:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4075 states. [2020-10-15 02:21:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 5640 transitions. [2020-10-15 02:21:40,031 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 5640 transitions. Word has length 88 [2020-10-15 02:21:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:40,031 INFO L479 AbstractCegarLoop]: Abstraction has 4075 states and 5640 transitions. [2020-10-15 02:21:40,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 5640 transitions. [2020-10-15 02:21:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:21:40,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:40,041 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] [2020-10-15 02:21:40,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:21:40,041 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:40,041 INFO L82 PathProgramCache]: Analyzing trace with hash -268517769, now seen corresponding path program 1 times [2020-10-15 02:21:40,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:40,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643362504] [2020-10-15 02:21:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:43,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:45,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:45,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:21:45,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:21:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:21:45,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:45,282 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:45,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:45,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:45,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:21:45,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:45,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:21:45,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:45,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:45,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:45,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 02:21:45,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:45,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:21:45,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:45,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:45,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:45,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:45,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:45,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:45,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:45,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:45,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:45,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:45,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:21:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:21:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:21:45,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:45,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:45,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:45,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:45,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:45,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:45,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:45,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:45,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:45,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643362504] [2020-10-15 02:21:45,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:45,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:21:45,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589872675] [2020-10-15 02:21:45,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:21:45,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:45,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:21:45,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:21:45,730 INFO L87 Difference]: Start difference. First operand 4075 states and 5640 transitions. Second operand 14 states. [2020-10-15 02:21:45,938 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:46,114 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:46,530 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:46,870 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:48,901 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-15 02:21:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:49,033 INFO L93 Difference]: Finished difference Result 6342 states and 8975 transitions. [2020-10-15 02:21:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:49,034 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-15 02:21:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:49,057 INFO L225 Difference]: With dead ends: 6342 [2020-10-15 02:21:49,058 INFO L226 Difference]: Without dead ends: 5851 [2020-10-15 02:21:49,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:21:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2020-10-15 02:21:49,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5446. [2020-10-15 02:21:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5446 states. [2020-10-15 02:21:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 7698 transitions. [2020-10-15 02:21:49,373 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 7698 transitions. Word has length 88 [2020-10-15 02:21:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:49,373 INFO L479 AbstractCegarLoop]: Abstraction has 5446 states and 7698 transitions. [2020-10-15 02:21:49,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:21:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 7698 transitions. [2020-10-15 02:21:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:21:49,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:49,386 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] [2020-10-15 02:21:49,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:21:49,386 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1856865671, now seen corresponding path program 1 times [2020-10-15 02:21:49,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:49,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798935327] [2020-10-15 02:21:49,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:49,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:49,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:49,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:50,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3395 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 02:21:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:53,000 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:53,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:53,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:53,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:53,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:53,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:53,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:53,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-15 02:21:53,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:53,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:21:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:53,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:53,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:53,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:53,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:53,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:53,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:53,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:53,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:53,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:21:53,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:53,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:53,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:53,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:53,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:53,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:21:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:53,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:53,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:53,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:53,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:21:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:53,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:53,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:53,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:53,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:53,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:53,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:53,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798935327] [2020-10-15 02:21:53,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:53,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:53,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664015064] [2020-10-15 02:21:53,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:53,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:53,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:53,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:53,377 INFO L87 Difference]: Start difference. First operand 5446 states and 7698 transitions. Second operand 9 states. [2020-10-15 02:21:53,608 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:55,597 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:55,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:55,848 INFO L93 Difference]: Finished difference Result 11871 states and 16970 transitions. [2020-10-15 02:21:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:21:55,849 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:21:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:55,892 INFO L225 Difference]: With dead ends: 11871 [2020-10-15 02:21:55,892 INFO L226 Difference]: Without dead ends: 8470 [2020-10-15 02:21:55,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:21:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2020-10-15 02:21:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7937. [2020-10-15 02:21:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7937 states. [2020-10-15 02:21:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7937 states to 7937 states and 11215 transitions. [2020-10-15 02:21:56,408 INFO L78 Accepts]: Start accepts. Automaton has 7937 states and 11215 transitions. Word has length 88 [2020-10-15 02:21:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:56,409 INFO L479 AbstractCegarLoop]: Abstraction has 7937 states and 11215 transitions. [2020-10-15 02:21:56,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7937 states and 11215 transitions. [2020-10-15 02:21:56,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:21:56,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:56,420 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] [2020-10-15 02:21:56,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:21:56,420 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:56,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:56,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1139258861, now seen corresponding path program 1 times [2020-10-15 02:21:56,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:56,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999922192] [2020-10-15 02:21:56,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:58,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:22:01,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:01,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:22:01,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:22:01,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,627 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:01,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:01,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:01,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:01,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:22:01,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:22:01,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-15 02:22:01,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:01,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:22:01,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:22:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:01,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:22:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:01,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:01,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:01,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:01,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:01,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:22:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:22:01,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:01,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:02,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:22:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:02,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:02,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:02,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:22:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:02,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:22:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:02,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:02,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:02,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:02,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:02,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:02,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999922192] [2020-10-15 02:22:02,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:02,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:02,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410762012] [2020-10-15 02:22:02,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:02,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:02,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:02,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:02,053 INFO L87 Difference]: Start difference. First operand 7937 states and 11215 transitions. Second operand 10 states. [2020-10-15 02:22:02,280 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:02,557 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:22:02,746 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:02,957 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:03,192 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:22:03,373 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:22:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:06,908 INFO L93 Difference]: Finished difference Result 18868 states and 26936 transitions. [2020-10-15 02:22:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:22:06,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-10-15 02:22:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:06,951 INFO L225 Difference]: With dead ends: 18868 [2020-10-15 02:22:06,951 INFO L226 Difference]: Without dead ends: 10910 [2020-10-15 02:22:06,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:22:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2020-10-15 02:22:07,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 10421. [2020-10-15 02:22:07,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10421 states. [2020-10-15 02:22:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10421 states to 10421 states and 14726 transitions. [2020-10-15 02:22:07,736 INFO L78 Accepts]: Start accepts. Automaton has 10421 states and 14726 transitions. Word has length 90 [2020-10-15 02:22:07,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:07,736 INFO L479 AbstractCegarLoop]: Abstraction has 10421 states and 14726 transitions. [2020-10-15 02:22:07,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 10421 states and 14726 transitions. [2020-10-15 02:22:07,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:22:07,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:07,748 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] [2020-10-15 02:22:07,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:22:07,749 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:07,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:07,749 INFO L82 PathProgramCache]: Analyzing trace with hash -969508486, now seen corresponding path program 1 times [2020-10-15 02:22:07,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:07,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859462489] [2020-10-15 02:22:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:07,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:07,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:22:12,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:12,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,946 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:12,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:12,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:12,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:12,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:13,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:13,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:13,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:13,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:22:13,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:13,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:13,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:13,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:13,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:22:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:13,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:13,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:13,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:13,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:13,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:13,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:13,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:13,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:13,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:13,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:13,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:13,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:22:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:22:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:13,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:22:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:13,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:13,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:13,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:22:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:13,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:13,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:13,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:13,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:13,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:13,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:13,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:13,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859462489] [2020-10-15 02:22:13,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:13,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:13,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875596263] [2020-10-15 02:22:13,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:13,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:13,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:13,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:13,199 INFO L87 Difference]: Start difference. First operand 10421 states and 14726 transitions. Second operand 9 states. [2020-10-15 02:22:13,398 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:13,555 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:13,718 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:13,882 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:14,511 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:16,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:16,989 INFO L93 Difference]: Finished difference Result 27210 states and 38760 transitions. [2020-10-15 02:22:16,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:22:16,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-15 02:22:16,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:17,059 INFO L225 Difference]: With dead ends: 27210 [2020-10-15 02:22:17,059 INFO L226 Difference]: Without dead ends: 16810 [2020-10-15 02:22:17,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:22:17,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2020-10-15 02:22:18,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 16534. [2020-10-15 02:22:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16534 states. [2020-10-15 02:22:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16534 states to 16534 states and 22971 transitions. [2020-10-15 02:22:18,488 INFO L78 Accepts]: Start accepts. Automaton has 16534 states and 22971 transitions. Word has length 91 [2020-10-15 02:22:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:18,489 INFO L479 AbstractCegarLoop]: Abstraction has 16534 states and 22971 transitions. [2020-10-15 02:22:18,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 16534 states and 22971 transitions. [2020-10-15 02:22:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:22:18,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:18,510 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] [2020-10-15 02:22:18,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:22:18,510 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:18,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2120415046, now seen corresponding path program 1 times [2020-10-15 02:22:18,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:18,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144876141] [2020-10-15 02:22:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:18,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:18,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:18,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:22:23,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4503 [2020-10-15 02:22:23,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:22:23,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,211 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:23,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:23,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:23,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:23,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:22:23,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:22:23,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:23,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:22:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:23,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:22:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:23,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:23,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:22:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:23,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:23,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:23,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:23,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:23,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:23,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:23,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:23,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:23,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:23,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:23,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144876141] [2020-10-15 02:22:23,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:23,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:23,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265966771] [2020-10-15 02:22:23,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:23,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:23,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:23,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:23,421 INFO L87 Difference]: Start difference. First operand 16534 states and 22971 transitions. Second operand 9 states. [2020-10-15 02:22:23,604 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:23,767 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:23,969 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:24,143 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:24,663 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:27,856 INFO L93 Difference]: Finished difference Result 31575 states and 43807 transitions. [2020-10-15 02:22:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:22:27,857 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-15 02:22:27,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:27,910 INFO L225 Difference]: With dead ends: 31575 [2020-10-15 02:22:27,911 INFO L226 Difference]: Without dead ends: 16018 [2020-10-15 02:22:27,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:22:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16018 states. [2020-10-15 02:22:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16018 to 15667. [2020-10-15 02:22:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15667 states. [2020-10-15 02:22:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15667 states to 15667 states and 21636 transitions. [2020-10-15 02:22:29,209 INFO L78 Accepts]: Start accepts. Automaton has 15667 states and 21636 transitions. Word has length 91 [2020-10-15 02:22:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:29,209 INFO L479 AbstractCegarLoop]: Abstraction has 15667 states and 21636 transitions. [2020-10-15 02:22:29,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 15667 states and 21636 transitions. [2020-10-15 02:22:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:22:29,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:29,227 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] [2020-10-15 02:22:29,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:22:29,227 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:29,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1198274248, now seen corresponding path program 1 times [2020-10-15 02:22:29,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:29,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103300283] [2020-10-15 02:22:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:22:34,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:22:34,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:22:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:22:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,440 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:34,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:22:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:22:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:34,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:34,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:34,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:34,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:22:34,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:34,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:34,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:34,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103300283] [2020-10-15 02:22:34,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:34,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:22:34,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084294569] [2020-10-15 02:22:34,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:22:34,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:34,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:22:34,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:22:34,722 INFO L87 Difference]: Start difference. First operand 15667 states and 21636 transitions. Second operand 14 states. [2020-10-15 02:22:34,923 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:35,088 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:35,443 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:35,776 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:38,436 INFO L93 Difference]: Finished difference Result 23086 states and 31946 transitions. [2020-10-15 02:22:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:22:38,437 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-15 02:22:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:38,488 INFO L225 Difference]: With dead ends: 23086 [2020-10-15 02:22:38,489 INFO L226 Difference]: Without dead ends: 17510 [2020-10-15 02:22:38,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:22:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17510 states. [2020-10-15 02:22:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17510 to 15667. [2020-10-15 02:22:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15667 states. [2020-10-15 02:22:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15667 states to 15667 states and 21600 transitions. [2020-10-15 02:22:39,502 INFO L78 Accepts]: Start accepts. Automaton has 15667 states and 21600 transitions. Word has length 92 [2020-10-15 02:22:39,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:39,502 INFO L479 AbstractCegarLoop]: Abstraction has 15667 states and 21600 transitions. [2020-10-15 02:22:39,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:22:39,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15667 states and 21600 transitions. [2020-10-15 02:22:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:22:39,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:39,518 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] [2020-10-15 02:22:39,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:22:39,519 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:39,519 INFO L82 PathProgramCache]: Analyzing trace with hash 187929146, now seen corresponding path program 1 times [2020-10-15 02:22:39,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:39,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096105465] [2020-10-15 02:22:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:39,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:39,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:22:44,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:44,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:22:44,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:22:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:22:44,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:44,719 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:44,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:44,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:44,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:44,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:22:44,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:22:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:44,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:44,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:44,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:44,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:44,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:44,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:44,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:44,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:44,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:44,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:44,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:44,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:44,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:45,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096105465] [2020-10-15 02:22:45,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:45,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:22:45,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472828514] [2020-10-15 02:22:45,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:22:45,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:45,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:22:45,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:22:45,005 INFO L87 Difference]: Start difference. First operand 15667 states and 21600 transitions. Second operand 14 states. [2020-10-15 02:22:45,202 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:45,365 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:45,737 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:46,508 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:48,987 INFO L93 Difference]: Finished difference Result 24668 states and 34170 transitions. [2020-10-15 02:22:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:22:48,988 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-15 02:22:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:49,034 INFO L225 Difference]: With dead ends: 24668 [2020-10-15 02:22:49,035 INFO L226 Difference]: Without dead ends: 18119 [2020-10-15 02:22:49,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:22:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18119 states. [2020-10-15 02:22:49,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18119 to 15667. [2020-10-15 02:22:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15667 states. [2020-10-15 02:22:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15667 states to 15667 states and 21559 transitions. [2020-10-15 02:22:49,877 INFO L78 Accepts]: Start accepts. Automaton has 15667 states and 21559 transitions. Word has length 92 [2020-10-15 02:22:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:49,877 INFO L479 AbstractCegarLoop]: Abstraction has 15667 states and 21559 transitions. [2020-10-15 02:22:49,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:22:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15667 states and 21559 transitions. [2020-10-15 02:22:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:22:49,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:49,891 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] [2020-10-15 02:22:49,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:22:49,891 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:49,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2111157180, now seen corresponding path program 1 times [2020-10-15 02:22:49,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:49,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973374683] [2020-10-15 02:22:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:49,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:49,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:51,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3370 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:22:53,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,467 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:53,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:53,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:53,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:53,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:53,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:22:53,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:22:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:53,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:22:53,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:53,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:53,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:53,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:53,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973374683] [2020-10-15 02:22:53,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:53,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:22:53,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019086144] [2020-10-15 02:22:53,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:22:53,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:53,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:22:53,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:22:53,791 INFO L87 Difference]: Start difference. First operand 15667 states and 21559 transitions. Second operand 13 states. [2020-10-15 02:22:53,993 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:54,389 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:54,560 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:56,467 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:56,639 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:22:57,103 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:02,470 INFO L93 Difference]: Finished difference Result 72897 states and 102080 transitions. [2020-10-15 02:23:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-15 02:23:02,471 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-15 02:23:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:02,653 INFO L225 Difference]: With dead ends: 72897 [2020-10-15 02:23:02,653 INFO L226 Difference]: Without dead ends: 61400 [2020-10-15 02:23:02,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=572, Invalid=1878, Unknown=0, NotChecked=0, Total=2450 [2020-10-15 02:23:02,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61400 states. [2020-10-15 02:23:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61400 to 59331. [2020-10-15 02:23:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59331 states. [2020-10-15 02:23:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59331 states to 59331 states and 82238 transitions. [2020-10-15 02:23:07,148 INFO L78 Accepts]: Start accepts. Automaton has 59331 states and 82238 transitions. Word has length 92 [2020-10-15 02:23:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:07,148 INFO L479 AbstractCegarLoop]: Abstraction has 59331 states and 82238 transitions. [2020-10-15 02:23:07,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:23:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 59331 states and 82238 transitions. [2020-10-15 02:23:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:23:07,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:07,170 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] [2020-10-15 02:23:07,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:23:07,171 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:07,171 INFO L82 PathProgramCache]: Analyzing trace with hash 991840770, now seen corresponding path program 1 times [2020-10-15 02:23:07,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:07,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506494203] [2020-10-15 02:23:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:07,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:07,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:07,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:23:12,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:12,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:23:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:23:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:23:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,352 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:12,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:12,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:12,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:23:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:12,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:12,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:23:12,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:23:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:23:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:12,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:12,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:12,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:23:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:23:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:12,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:12,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:12,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:12,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:12,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:12,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:12,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:12,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:12,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506494203] [2020-10-15 02:23:12,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:12,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:23:12,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786355827] [2020-10-15 02:23:12,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:23:12,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:12,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:23:12,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:23:12,551 INFO L87 Difference]: Start difference. First operand 59331 states and 82238 transitions. Second operand 9 states. [2020-10-15 02:23:12,715 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:15,652 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:23:16,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:16,970 INFO L93 Difference]: Finished difference Result 101419 states and 140104 transitions. [2020-10-15 02:23:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:23:16,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:23:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:17,153 INFO L225 Difference]: With dead ends: 101419 [2020-10-15 02:23:17,153 INFO L226 Difference]: Without dead ends: 61312 [2020-10-15 02:23:17,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:23:17,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61312 states. [2020-10-15 02:23:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61312 to 58515. [2020-10-15 02:23:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58515 states. [2020-10-15 02:23:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58515 states to 58515 states and 80718 transitions. [2020-10-15 02:23:20,576 INFO L78 Accepts]: Start accepts. Automaton has 58515 states and 80718 transitions. Word has length 93 [2020-10-15 02:23:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:20,577 INFO L479 AbstractCegarLoop]: Abstraction has 58515 states and 80718 transitions. [2020-10-15 02:23:20,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:23:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 58515 states and 80718 transitions. [2020-10-15 02:23:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:23:20,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:20,588 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] [2020-10-15 02:23:20,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:23:20,588 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:20,588 INFO L82 PathProgramCache]: Analyzing trace with hash -268389519, now seen corresponding path program 1 times [2020-10-15 02:23:20,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:20,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893405868] [2020-10-15 02:23:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:20,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:20,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:20,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:20,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:23:25,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:25,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:23:25,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:25,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:23:25,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:23:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,779 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:25,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:25,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:25,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:25,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:25,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:23:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:25,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:25,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:25,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:25,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:25,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:25,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:25,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:23:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:23:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:25,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:25,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:25,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:25,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:25,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:25,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893405868] [2020-10-15 02:23:25,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:25,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:23:25,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042325555] [2020-10-15 02:23:25,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:23:25,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:25,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:23:25,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:23:25,994 INFO L87 Difference]: Start difference. First operand 58515 states and 80718 transitions. Second operand 9 states. [2020-10-15 02:23:26,166 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:28,812 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:23:30,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:30,464 INFO L93 Difference]: Finished difference Result 91572 states and 127941 transitions. [2020-10-15 02:23:30,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:23:30,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:23:30,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:30,716 INFO L225 Difference]: With dead ends: 91572 [2020-10-15 02:23:30,716 INFO L226 Difference]: Without dead ends: 63155 [2020-10-15 02:23:30,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:23:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63155 states. [2020-10-15 02:23:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63155 to 58450. [2020-10-15 02:23:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58450 states. [2020-10-15 02:23:34,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58450 states to 58450 states and 79858 transitions. [2020-10-15 02:23:34,090 INFO L78 Accepts]: Start accepts. Automaton has 58450 states and 79858 transitions. Word has length 93 [2020-10-15 02:23:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:34,090 INFO L479 AbstractCegarLoop]: Abstraction has 58450 states and 79858 transitions. [2020-10-15 02:23:34,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:23:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 58450 states and 79858 transitions. [2020-10-15 02:23:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:23:34,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:34,101 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] [2020-10-15 02:23:34,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:23:34,102 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:34,102 INFO L82 PathProgramCache]: Analyzing trace with hash 326571629, now seen corresponding path program 1 times [2020-10-15 02:23:34,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:34,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230230248] [2020-10-15 02:23:34,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:34,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:34,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:34,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:35,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:35,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:23:39,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:39,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:23:39,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:23:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:23:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,295 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:39,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:39,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:39,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:39,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:39,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:39,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:39,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:39,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:39,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:23:39,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:23:39,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:39,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:23:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:39,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:39,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:39,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:39,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:39,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:39,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:23:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:39,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:23:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:23:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:39,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230230248] [2020-10-15 02:23:39,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:39,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:39,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927517981] [2020-10-15 02:23:39,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:39,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:39,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:39,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:39,525 INFO L87 Difference]: Start difference. First operand 58450 states and 79858 transitions. Second operand 10 states. [2020-10-15 02:23:39,719 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:23:40,135 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:41,823 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:41,986 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:23:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:49,331 INFO L93 Difference]: Finished difference Result 183502 states and 250948 transitions. [2020-10-15 02:23:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:23:49,332 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-10-15 02:23:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:49,712 INFO L225 Difference]: With dead ends: 183502 [2020-10-15 02:23:49,713 INFO L226 Difference]: Without dead ends: 130636 [2020-10-15 02:23:49,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:23:49,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130636 states. [2020-10-15 02:23:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130636 to 126703. [2020-10-15 02:23:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126703 states. [2020-10-15 02:23:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126703 states to 126703 states and 171730 transitions. [2020-10-15 02:23:58,332 INFO L78 Accepts]: Start accepts. Automaton has 126703 states and 171730 transitions. Word has length 93 [2020-10-15 02:23:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:58,333 INFO L479 AbstractCegarLoop]: Abstraction has 126703 states and 171730 transitions. [2020-10-15 02:23:58,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:23:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 126703 states and 171730 transitions. [2020-10-15 02:23:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:23:58,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:58,349 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] [2020-10-15 02:23:58,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:23:58,350 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:58,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:58,350 INFO L82 PathProgramCache]: Analyzing trace with hash 787309459, now seen corresponding path program 1 times [2020-10-15 02:23:58,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:58,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416253467] [2020-10-15 02:23:58,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:58,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:58,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking...