/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-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:22:19,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:22:19,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:22:19,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:22:19,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:22:19,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:22:19,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:22:19,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:22:19,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:22:19,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:22:20,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:22:20,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:22:20,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:22:20,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:22:20,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:22:20,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:22:20,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:22:20,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:22:20,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:22:20,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:22:20,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:22:20,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:22:20,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:22:20,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:22:20,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:22:20,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:22:20,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:22:20,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:22:20,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:22:20,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:22:20,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:22:20,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:22:20,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:22:20,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:22:20,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:22:20,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:22:20,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:22:20,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:22:20,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:22:20,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:22:20,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:22:20,051 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 03:22:20,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:22:20,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:22:20,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:22:20,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:22:20,077 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:22:20,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:22:20,077 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:22:20,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:22:20,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:22:20,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:22:20,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:22:20,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:22:20,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:22:20,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:22:20,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:22:20,079 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:22:20,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:22:20,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:22:20,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:22:20,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:22:20,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:22:20,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:22:20,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:22:20,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:22:20,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:22:20,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:22:20,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:22:20,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:22:20,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:22:20,082 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 03:22:20,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:22:20,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:22:20,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:22:20,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:22:20,409 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:22:20,410 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-15 03:22:20,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2e54bad5/0de07230396b4bde8dbdbe9939be36a6/FLAGd5b863ed5 [2020-10-15 03:22:21,151 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:22:21,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-15 03:22:21,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2e54bad5/0de07230396b4bde8dbdbe9939be36a6/FLAGd5b863ed5 [2020-10-15 03:22:21,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2e54bad5/0de07230396b4bde8dbdbe9939be36a6 [2020-10-15 03:22:21,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:22:21,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:22:21,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:22:21,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:22:21,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:22:21,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:21" (1/1) ... [2020-10-15 03:22:21,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d73bbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:21, skipping insertion in model container [2020-10-15 03:22:21,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:21" (1/1) ... [2020-10-15 03:22:21,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:22:21,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:22:22,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:22:22,369 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:22:22,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:22:22,875 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:22:22,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22 WrapperNode [2020-10-15 03:22:22,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:22:22,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:22:22,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:22:22,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:22:22,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:22,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:22,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:22,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:23,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:23,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:23,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (1/1) ... [2020-10-15 03:22:23,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:22:23,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:22:23,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:22:23,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:22:23,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (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 03:22:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:22:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:22:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:22:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:22:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:22:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:22:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:22:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:22:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:22:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:22:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:22:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:22:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:22:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:22:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:22:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:22:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:22:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:22:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:22:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:22:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:22:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:22:25,761 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:22:25,762 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:22:25,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:25 BoogieIcfgContainer [2020-10-15 03:22:25,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:22:25,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:22:25,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:22:25,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:22:25,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:21" (1/3) ... [2020-10-15 03:22:25,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9ea20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:25, skipping insertion in model container [2020-10-15 03:22:25,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:22" (2/3) ... [2020-10-15 03:22:25,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9ea20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:25, skipping insertion in model container [2020-10-15 03:22:25,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:25" (3/3) ... [2020-10-15 03:22:25,780 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-15 03:22:25,793 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:22:25,802 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-15 03:22:25,820 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-15 03:22:25,851 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:22:25,851 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:22:25,851 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:22:25,851 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:22:25,852 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:22:25,852 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:22:25,852 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:22:25,852 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:22:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states. [2020-10-15 03:22:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:22:25,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:25,905 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] [2020-10-15 03:22:25,906 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1881396577, now seen corresponding path program 1 times [2020-10-15 03:22:25,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:25,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726921666] [2020-10-15 03:22:25,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:26,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:26,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:27,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:27,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:27,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:28,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:29,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:31,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:31,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:22:31,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:22:31,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:22:31,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:31,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:22:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:22:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:22:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:22:32,395 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:22:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:32,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:32,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:32,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:32,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:32,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-15 03:22:32,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:32,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:22:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:22:32,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:32,588 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 03:22:32,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726921666] [2020-10-15 03:22:32,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:32,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:22:32,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457973776] [2020-10-15 03:22:32,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:22:32,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:32,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:22:32,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:22:32,628 INFO L87 Difference]: Start difference. First operand 634 states. Second operand 6 states. [2020-10-15 03:22:33,679 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-15 03:22:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:37,868 INFO L93 Difference]: Finished difference Result 984 states and 1700 transitions. [2020-10-15 03:22:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:22:37,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:22:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:37,889 INFO L225 Difference]: With dead ends: 984 [2020-10-15 03:22:37,889 INFO L226 Difference]: Without dead ends: 526 [2020-10-15 03:22:37,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:22:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-15 03:22:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-15 03:22:37,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 03:22:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 659 transitions. [2020-10-15 03:22:37,988 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 659 transitions. Word has length 76 [2020-10-15 03:22:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:37,989 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 659 transitions. [2020-10-15 03:22:37,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:22:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 659 transitions. [2020-10-15 03:22:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:22:37,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:37,994 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] [2020-10-15 03:22:37,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:22:37,995 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:37,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:37,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1374123591, now seen corresponding path program 1 times [2020-10-15 03:22:37,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:37,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661902648] [2020-10-15 03:22:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:38,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:38,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:38,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:39,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:39,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:40,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:41,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:41,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:41,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:43,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:43,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:22:43,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:22:43,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:22:43,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:43,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:22:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:22:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:22:43,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:43,831 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:22:43,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:43,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:43,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:43,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:43,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:22:43,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:43,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:43,885 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 03:22:43,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661902648] [2020-10-15 03:22:43,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:43,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:22:43,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744547032] [2020-10-15 03:22:43,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:22:43,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:43,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:22:43,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:22:43,889 INFO L87 Difference]: Start difference. First operand 526 states and 659 transitions. Second operand 6 states. [2020-10-15 03:22:44,573 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-15 03:22:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:22:49,732 INFO L93 Difference]: Finished difference Result 1548 states and 2077 transitions. [2020-10-15 03:22:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:22:49,732 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:22:49,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:22:49,742 INFO L225 Difference]: With dead ends: 1548 [2020-10-15 03:22:49,742 INFO L226 Difference]: Without dead ends: 1365 [2020-10-15 03:22:49,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:22:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-10-15 03:22:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 991. [2020-10-15 03:22:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-10-15 03:22:49,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1364 transitions. [2020-10-15 03:22:49,811 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1364 transitions. Word has length 77 [2020-10-15 03:22:49,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:22:49,811 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1364 transitions. [2020-10-15 03:22:49,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:22:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1364 transitions. [2020-10-15 03:22:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:22:49,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:22:49,815 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] [2020-10-15 03:22:49,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:22:49,816 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:22:49,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:22:49,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1009347685, now seen corresponding path program 1 times [2020-10-15 03:22:49,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:22:49,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8024889] [2020-10-15 03:22:49,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:22:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:49,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:49,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:50,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:51,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:51,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:52,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:54,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:54,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:22:54,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:22:54,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:22:54,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:54,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:22:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:22:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:22:54,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:55,782 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:22:55,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:22:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:22:55,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:22:55,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:22:55,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:22:55,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:22:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:22:55,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:22:55,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:22:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:22:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:22:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:22:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:22:55,841 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 03:22:55,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8024889] [2020-10-15 03:22:55,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:22:55,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:22:55,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111618173] [2020-10-15 03:22:55,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:22:55,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:22:55,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:22:55,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:22:55,844 INFO L87 Difference]: Start difference. First operand 991 states and 1364 transitions. Second operand 8 states. [2020-10-15 03:22:57,415 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 337 DAG size of output: 333 [2020-10-15 03:23:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:01,709 INFO L93 Difference]: Finished difference Result 3391 states and 4910 transitions. [2020-10-15 03:23:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 03:23:01,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-10-15 03:23:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:01,730 INFO L225 Difference]: With dead ends: 3391 [2020-10-15 03:23:01,731 INFO L226 Difference]: Without dead ends: 2906 [2020-10-15 03:23:01,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2020-10-15 03:23:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2020-10-15 03:23:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1053. [2020-10-15 03:23:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-10-15 03:23:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1457 transitions. [2020-10-15 03:23:01,827 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1457 transitions. Word has length 77 [2020-10-15 03:23:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:01,827 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1457 transitions. [2020-10-15 03:23:01,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1457 transitions. [2020-10-15 03:23:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:23:01,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:01,831 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] [2020-10-15 03:23:01,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:23:01,831 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:01,832 INFO L82 PathProgramCache]: Analyzing trace with hash 553226522, now seen corresponding path program 1 times [2020-10-15 03:23:01,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:01,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285324759] [2020-10-15 03:23:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:01,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:01,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:03,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:06,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:06,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:23:06,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:23:06,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:23:06,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:06,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:23:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 03:23:06,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:07,651 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:23:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:07,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:07,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:07,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:07,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 03:23:07,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:07,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:23:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:23:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:07,724 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 03:23:07,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285324759] [2020-10-15 03:23:07,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:07,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:23:07,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697210668] [2020-10-15 03:23:07,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:07,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:07,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:07,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:07,729 INFO L87 Difference]: Start difference. First operand 1053 states and 1457 transitions. Second operand 6 states. [2020-10-15 03:23:08,429 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-15 03:23:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:11,286 INFO L93 Difference]: Finished difference Result 1427 states and 1967 transitions. [2020-10-15 03:23:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:23:11,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:23:11,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:11,294 INFO L225 Difference]: With dead ends: 1427 [2020-10-15 03:23:11,294 INFO L226 Difference]: Without dead ends: 920 [2020-10-15 03:23:11,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:23:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-10-15 03:23:11,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 674. [2020-10-15 03:23:11,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-10-15 03:23:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 914 transitions. [2020-10-15 03:23:11,332 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 914 transitions. Word has length 77 [2020-10-15 03:23:11,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:11,333 INFO L479 AbstractCegarLoop]: Abstraction has 674 states and 914 transitions. [2020-10-15 03:23:11,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:23:11,333 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 914 transitions. [2020-10-15 03:23:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:23:11,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:11,336 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] [2020-10-15 03:23:11,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:23:11,336 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:11,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:11,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1094801805, now seen corresponding path program 1 times [2020-10-15 03:23:11,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:11,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879648890] [2020-10-15 03:23:11,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:11,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:11,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:13,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:13,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:14,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:14,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:16,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:16,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:23:16,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:23:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:23:16,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:16,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:23:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:23:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:17,265 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:23:17,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:17,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:17,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:17,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 03:23:17,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:17,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:23:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:23:17,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:17,357 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 03:23:17,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879648890] [2020-10-15 03:23:17,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:17,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:23:17,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061529727] [2020-10-15 03:23:17,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:17,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:17,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:17,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:17,359 INFO L87 Difference]: Start difference. First operand 674 states and 914 transitions. Second operand 6 states. [2020-10-15 03:23:18,100 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 03:23:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:20,592 INFO L93 Difference]: Finished difference Result 1527 states and 2096 transitions. [2020-10-15 03:23:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:23:20,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-15 03:23:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:20,598 INFO L225 Difference]: With dead ends: 1527 [2020-10-15 03:23:20,599 INFO L226 Difference]: Without dead ends: 948 [2020-10-15 03:23:20,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2020-10-15 03:23:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 890. [2020-10-15 03:23:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-10-15 03:23:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1229 transitions. [2020-10-15 03:23:20,657 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1229 transitions. Word has length 78 [2020-10-15 03:23:20,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:20,657 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1229 transitions. [2020-10-15 03:23:20,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:23:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1229 transitions. [2020-10-15 03:23:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:23:20,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:20,659 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] [2020-10-15 03:23:20,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:23:20,660 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:20,660 INFO L82 PathProgramCache]: Analyzing trace with hash -415702615, now seen corresponding path program 1 times [2020-10-15 03:23:20,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:20,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969794388] [2020-10-15 03:23:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:20,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:20,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:22,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:22,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:23,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:24,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:25,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:25,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:23:25,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:23:25,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:23:25,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:25,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:23:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:23:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:26,534 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:23:26,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:26,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:26,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:26,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:23:26,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:26,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:26,577 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 03:23:26,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969794388] [2020-10-15 03:23:26,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:26,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:23:26,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107396666] [2020-10-15 03:23:26,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:26,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:26,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:26,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:26,580 INFO L87 Difference]: Start difference. First operand 890 states and 1229 transitions. Second operand 6 states. [2020-10-15 03:23:27,285 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-15 03:23:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:31,786 INFO L93 Difference]: Finished difference Result 4967 states and 7223 transitions. [2020-10-15 03:23:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:23:31,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-15 03:23:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:31,806 INFO L225 Difference]: With dead ends: 4967 [2020-10-15 03:23:31,806 INFO L226 Difference]: Without dead ends: 4526 [2020-10-15 03:23:31,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:23:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2020-10-15 03:23:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 2686. [2020-10-15 03:23:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2686 states. [2020-10-15 03:23:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 3896 transitions. [2020-10-15 03:23:32,011 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 3896 transitions. Word has length 79 [2020-10-15 03:23:32,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:32,012 INFO L479 AbstractCegarLoop]: Abstraction has 2686 states and 3896 transitions. [2020-10-15 03:23:32,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:23:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 3896 transitions. [2020-10-15 03:23:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:23:32,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:32,015 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] [2020-10-15 03:23:32,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:23:32,015 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:32,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1808115056, now seen corresponding path program 1 times [2020-10-15 03:23:32,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:32,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176327382] [2020-10-15 03:23:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:32,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:32,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:32,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:32,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:33,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:34,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:34,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:35,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:35,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:35,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:35,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:36,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:36,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:36,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:23:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:38,254 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:23:38,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:38,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:38,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:38,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:38,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:38,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:23:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:38,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:38,359 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 03:23:38,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176327382] [2020-10-15 03:23:38,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:38,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:38,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570883740] [2020-10-15 03:23:38,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:38,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:38,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:38,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:38,363 INFO L87 Difference]: Start difference. First operand 2686 states and 3896 transitions. Second operand 8 states. [2020-10-15 03:23:39,267 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2020-10-15 03:23:41,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:41,192 INFO L93 Difference]: Finished difference Result 5016 states and 7414 transitions. [2020-10-15 03:23:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:23:41,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:23:41,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:41,206 INFO L225 Difference]: With dead ends: 5016 [2020-10-15 03:23:41,206 INFO L226 Difference]: Without dead ends: 3167 [2020-10-15 03:23:41,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:23:41,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-10-15 03:23:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2359. [2020-10-15 03:23:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2020-10-15 03:23:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3442 transitions. [2020-10-15 03:23:41,436 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3442 transitions. Word has length 79 [2020-10-15 03:23:41,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:41,437 INFO L479 AbstractCegarLoop]: Abstraction has 2359 states and 3442 transitions. [2020-10-15 03:23:41,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:23:41,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3442 transitions. [2020-10-15 03:23:41,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:23:41,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:41,441 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] [2020-10-15 03:23:41,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:23:41,442 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:41,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:41,442 INFO L82 PathProgramCache]: Analyzing trace with hash -50926709, now seen corresponding path program 1 times [2020-10-15 03:23:41,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:41,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810580777] [2020-10-15 03:23:41,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:41,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:41,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:41,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:41,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:42,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:43,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:44,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:44,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:44,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:44,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:45,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:46,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:23:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:23:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 03:23:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:46,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:23:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:23:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 03:23:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:47,432 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:23:47,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:47,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:47,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:47,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:47,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 03:23:47,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:47,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:23:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:23:47,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:47,516 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 03:23:47,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810580777] [2020-10-15 03:23:47,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:47,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:47,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421235189] [2020-10-15 03:23:47,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:23:47,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:47,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:23:47,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:23:47,518 INFO L87 Difference]: Start difference. First operand 2359 states and 3442 transitions. Second operand 9 states. [2020-10-15 03:23:48,284 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 03:23:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:23:50,402 INFO L93 Difference]: Finished difference Result 5081 states and 7487 transitions. [2020-10-15 03:23:50,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:23:50,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-15 03:23:50,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:23:50,415 INFO L225 Difference]: With dead ends: 5081 [2020-10-15 03:23:50,416 INFO L226 Difference]: Without dead ends: 3167 [2020-10-15 03:23:50,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:23:50,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-10-15 03:23:50,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2359. [2020-10-15 03:23:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2020-10-15 03:23:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3440 transitions. [2020-10-15 03:23:50,635 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3440 transitions. Word has length 79 [2020-10-15 03:23:50,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:23:50,636 INFO L479 AbstractCegarLoop]: Abstraction has 2359 states and 3440 transitions. [2020-10-15 03:23:50,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:23:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3440 transitions. [2020-10-15 03:23:50,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:23:50,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:50,639 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] [2020-10-15 03:23:50,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:23:50,639 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:50,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:50,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1289948332, now seen corresponding path program 1 times [2020-10-15 03:23:50,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:50,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796309204] [2020-10-15 03:23:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:52,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:52,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:52,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:52,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:52,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:53,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:53,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:54,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:55,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:55,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:55,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:23:55,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:23:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:23:55,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:55,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:23:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:23:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 03:23:55,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:56,411 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:23:56,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:56,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:56,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:56,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:23:56,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:56,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:23:56,451 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 03:23:56,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796309204] [2020-10-15 03:23:56,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:56,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:23:56,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533830961] [2020-10-15 03:23:56,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:23:56,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:56,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:23:56,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:23:56,453 INFO L87 Difference]: Start difference. First operand 2359 states and 3440 transitions. Second operand 8 states. [2020-10-15 03:23:57,174 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-15 03:24:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:00,679 INFO L93 Difference]: Finished difference Result 13769 states and 20611 transitions. [2020-10-15 03:24:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:24:00,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:24:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:00,723 INFO L225 Difference]: With dead ends: 13769 [2020-10-15 03:24:00,723 INFO L226 Difference]: Without dead ends: 12149 [2020-10-15 03:24:00,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:24:00,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12149 states. [2020-10-15 03:24:00,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12149 to 2295. [2020-10-15 03:24:00,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2295 states. [2020-10-15 03:24:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3328 transitions. [2020-10-15 03:24:00,996 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3328 transitions. Word has length 81 [2020-10-15 03:24:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:00,996 INFO L479 AbstractCegarLoop]: Abstraction has 2295 states and 3328 transitions. [2020-10-15 03:24:00,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3328 transitions. [2020-10-15 03:24:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:24:00,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:00,999 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] [2020-10-15 03:24:00,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:24:00,999 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:00,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:01,000 INFO L82 PathProgramCache]: Analyzing trace with hash -445118794, now seen corresponding path program 1 times [2020-10-15 03:24:01,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:01,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254403028] [2020-10-15 03:24:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:01,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:01,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:03,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:03,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:06,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:06,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:24:06,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:24:06,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:24:06,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:06,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:24:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:24:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:06,918 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:24:06,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:06,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:06,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:06,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:06,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:06,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:24:06,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:06,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:06,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:06,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:06,975 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 03:24:06,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254403028] [2020-10-15 03:24:06,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:06,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:24:06,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097200008] [2020-10-15 03:24:06,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:24:06,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:06,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:24:06,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:06,977 INFO L87 Difference]: Start difference. First operand 2295 states and 3328 transitions. Second operand 9 states. [2020-10-15 03:24:07,687 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2020-10-15 03:24:09,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:09,274 INFO L93 Difference]: Finished difference Result 3801 states and 5609 transitions. [2020-10-15 03:24:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:24:09,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-15 03:24:09,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:09,280 INFO L225 Difference]: With dead ends: 3801 [2020-10-15 03:24:09,280 INFO L226 Difference]: Without dead ends: 2169 [2020-10-15 03:24:09,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:24:09,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2020-10-15 03:24:09,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2169. [2020-10-15 03:24:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2169 states. [2020-10-15 03:24:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3151 transitions. [2020-10-15 03:24:09,453 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3151 transitions. Word has length 81 [2020-10-15 03:24:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:09,454 INFO L479 AbstractCegarLoop]: Abstraction has 2169 states and 3151 transitions. [2020-10-15 03:24:09,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:24:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3151 transitions. [2020-10-15 03:24:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:24:09,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:09,456 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] [2020-10-15 03:24:09,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:24:09,456 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:09,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:09,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1442444757, now seen corresponding path program 1 times [2020-10-15 03:24:09,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:09,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068745002] [2020-10-15 03:24:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:09,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:09,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:09,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:09,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:09,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:12,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:12,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:12,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:13,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:13,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:13,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:13,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:14,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:14,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:14,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:24:14,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:24:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:24:14,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:14,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 03:24:14,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:15,198 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:24:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:15,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:15,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:15,233 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 03:24:15,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068745002] [2020-10-15 03:24:15,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:15,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:15,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565291567] [2020-10-15 03:24:15,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:15,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:15,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:15,235 INFO L87 Difference]: Start difference. First operand 2169 states and 3151 transitions. Second operand 8 states. [2020-10-15 03:24:15,994 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 03:24:17,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:17,580 INFO L93 Difference]: Finished difference Result 3951 states and 5802 transitions. [2020-10-15 03:24:17,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:24:17,581 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:24:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:17,585 INFO L225 Difference]: With dead ends: 3951 [2020-10-15 03:24:17,585 INFO L226 Difference]: Without dead ends: 2169 [2020-10-15 03:24:17,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:24:17,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2020-10-15 03:24:17,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2169. [2020-10-15 03:24:17,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2169 states. [2020-10-15 03:24:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3147 transitions. [2020-10-15 03:24:17,842 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3147 transitions. Word has length 81 [2020-10-15 03:24:17,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:17,842 INFO L479 AbstractCegarLoop]: Abstraction has 2169 states and 3147 transitions. [2020-10-15 03:24:17,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3147 transitions. [2020-10-15 03:24:17,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:24:17,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:17,844 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] [2020-10-15 03:24:17,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:24:17,845 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash 614607498, now seen corresponding path program 1 times [2020-10-15 03:24:17,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:17,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172989565] [2020-10-15 03:24:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:17,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:17,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:20,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:22,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:22,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 03:24:22,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:24:22,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:23,649 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:24:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:23,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:23,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:23,690 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 03:24:23,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172989565] [2020-10-15 03:24:23,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:23,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:23,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119931232] [2020-10-15 03:24:23,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:23,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:23,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:23,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:23,692 INFO L87 Difference]: Start difference. First operand 2169 states and 3147 transitions. Second operand 8 states. [2020-10-15 03:24:25,114 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 334 DAG size of output: 331 [2020-10-15 03:24:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:28,806 INFO L93 Difference]: Finished difference Result 18483 states and 27235 transitions. [2020-10-15 03:24:28,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 03:24:28,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-15 03:24:28,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:28,837 INFO L225 Difference]: With dead ends: 18483 [2020-10-15 03:24:28,838 INFO L226 Difference]: Without dead ends: 16781 [2020-10-15 03:24:28,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2020-10-15 03:24:28,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16781 states. [2020-10-15 03:24:29,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16781 to 2269. [2020-10-15 03:24:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2269 states. [2020-10-15 03:24:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3245 transitions. [2020-10-15 03:24:29,324 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3245 transitions. Word has length 83 [2020-10-15 03:24:29,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:29,325 INFO L479 AbstractCegarLoop]: Abstraction has 2269 states and 3245 transitions. [2020-10-15 03:24:29,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:29,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3245 transitions. [2020-10-15 03:24:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:24:29,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:29,327 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] [2020-10-15 03:24:29,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:24:29,327 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1751203286, now seen corresponding path program 1 times [2020-10-15 03:24:29,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:29,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464367730] [2020-10-15 03:24:29,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:30,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:30,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:30,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:30,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:34,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 03:24:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:35,120 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:24:35,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:35,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:35,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:35,160 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 03:24:35,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464367730] [2020-10-15 03:24:35,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:35,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:35,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996114563] [2020-10-15 03:24:35,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:35,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:35,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:35,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:35,162 INFO L87 Difference]: Start difference. First operand 2269 states and 3245 transitions. Second operand 8 states. [2020-10-15 03:24:35,865 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-15 03:24:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:40,119 INFO L93 Difference]: Finished difference Result 13137 states and 19127 transitions. [2020-10-15 03:24:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:24:40,119 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-15 03:24:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:40,146 INFO L225 Difference]: With dead ends: 13137 [2020-10-15 03:24:40,146 INFO L226 Difference]: Without dead ends: 12107 [2020-10-15 03:24:40,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:24:40,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12107 states. [2020-10-15 03:24:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12107 to 2107. [2020-10-15 03:24:40,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2107 states. [2020-10-15 03:24:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 3008 transitions. [2020-10-15 03:24:40,550 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 3008 transitions. Word has length 83 [2020-10-15 03:24:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:40,551 INFO L479 AbstractCegarLoop]: Abstraction has 2107 states and 3008 transitions. [2020-10-15 03:24:40,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 3008 transitions. [2020-10-15 03:24:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:24:40,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:40,552 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] [2020-10-15 03:24:40,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:24:40,552 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:40,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:40,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1168236380, now seen corresponding path program 1 times [2020-10-15 03:24:40,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:40,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309097600] [2020-10-15 03:24:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:40,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:40,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:40,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:40,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:41,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:41,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:41,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:41,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:45,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 03:24:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:24:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:24:45,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:45,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:24:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 03:24:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:46,274 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:24:46,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:46,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:46,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:24:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:46,332 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 03:24:46,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309097600] [2020-10-15 03:24:46,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:46,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:24:46,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940823189] [2020-10-15 03:24:46,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:46,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:46,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:46,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:46,334 INFO L87 Difference]: Start difference. First operand 2107 states and 3008 transitions. Second operand 8 states. [2020-10-15 03:24:47,029 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-15 03:24:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:49,773 INFO L93 Difference]: Finished difference Result 10319 states and 14967 transitions. [2020-10-15 03:24:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:24:49,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-15 03:24:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:49,785 INFO L225 Difference]: With dead ends: 10319 [2020-10-15 03:24:49,786 INFO L226 Difference]: Without dead ends: 8573 [2020-10-15 03:24:49,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:24:49,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2020-10-15 03:24:50,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 2169. [2020-10-15 03:24:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2169 states. [2020-10-15 03:24:50,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3073 transitions. [2020-10-15 03:24:50,248 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3073 transitions. Word has length 83 [2020-10-15 03:24:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:50,249 INFO L479 AbstractCegarLoop]: Abstraction has 2169 states and 3073 transitions. [2020-10-15 03:24:50,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3073 transitions. [2020-10-15 03:24:50,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 03:24:50,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:50,250 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 03:24:50,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:24:50,250 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:50,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:50,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2126504530, now seen corresponding path program 1 times [2020-10-15 03:24:50,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:50,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319830819] [2020-10-15 03:24:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:50,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:54,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:54,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4516 [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:24:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:55,719 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:24:55,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:55,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:55,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:55,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:55,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:24:55,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:55,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:55,776 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 03:24:55,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319830819] [2020-10-15 03:24:55,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:55,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:24:55,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269851686] [2020-10-15 03:24:55,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:24:55,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:55,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:24:55,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:55,778 INFO L87 Difference]: Start difference. First operand 2169 states and 3073 transitions. Second operand 9 states. [2020-10-15 03:24:56,614 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2020-10-15 03:24:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:59,845 INFO L93 Difference]: Finished difference Result 8559 states and 12492 transitions. [2020-10-15 03:24:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:24:59,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 03:24:59,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:59,856 INFO L225 Difference]: With dead ends: 8559 [2020-10-15 03:24:59,857 INFO L226 Difference]: Without dead ends: 6995 [2020-10-15 03:24:59,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:24:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6995 states. [2020-10-15 03:25:00,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6995 to 2111. [2020-10-15 03:25:00,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2111 states. [2020-10-15 03:25:00,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 2977 transitions. [2020-10-15 03:25:00,360 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 2977 transitions. Word has length 84 [2020-10-15 03:25:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:00,360 INFO L479 AbstractCegarLoop]: Abstraction has 2111 states and 2977 transitions. [2020-10-15 03:25:00,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 2977 transitions. [2020-10-15 03:25:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 03:25:00,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:00,361 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 03:25:00,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:25:00,362 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:00,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1408792941, now seen corresponding path program 1 times [2020-10-15 03:25:00,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:00,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912887458] [2020-10-15 03:25:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:00,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:03,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2795 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 03:25:03,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:03,945 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:25:03,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:03,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:03,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:03,990 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 03:25:03,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912887458] [2020-10-15 03:25:03,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:03,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:25:03,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628636289] [2020-10-15 03:25:03,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:25:03,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:03,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:25:03,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:03,993 INFO L87 Difference]: Start difference. First operand 2111 states and 2977 transitions. Second operand 9 states. [2020-10-15 03:25:04,779 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-15 03:25:07,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:07,331 INFO L93 Difference]: Finished difference Result 6831 states and 9964 transitions. [2020-10-15 03:25:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:25:07,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 03:25:07,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:07,339 INFO L225 Difference]: With dead ends: 6831 [2020-10-15 03:25:07,339 INFO L226 Difference]: Without dead ends: 6825 [2020-10-15 03:25:07,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:07,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6825 states. [2020-10-15 03:25:07,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6825 to 2105. [2020-10-15 03:25:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2020-10-15 03:25:07,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2964 transitions. [2020-10-15 03:25:07,677 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2964 transitions. Word has length 84 [2020-10-15 03:25:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:07,677 INFO L479 AbstractCegarLoop]: Abstraction has 2105 states and 2964 transitions. [2020-10-15 03:25:07,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:07,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2964 transitions. [2020-10-15 03:25:07,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 03:25:07,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:07,679 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 03:25:07,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:25:07,679 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash 596792006, now seen corresponding path program 1 times [2020-10-15 03:25:07,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:07,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997750398] [2020-10-15 03:25:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:07,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:07,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:07,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:10,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:12,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:12,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-15 03:25:12,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:25:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:25:12,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:12,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:25:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 03:25:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:13,496 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:25:13,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:13,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:13,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:13,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:13,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:13,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:25:13,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:13,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:13,546 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 03:25:13,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997750398] [2020-10-15 03:25:13,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:13,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:25:13,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065482459] [2020-10-15 03:25:13,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:25:13,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:13,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:25:13,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:13,548 INFO L87 Difference]: Start difference. First operand 2105 states and 2964 transitions. Second operand 9 states. [2020-10-15 03:25:14,292 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 03:25:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:17,868 INFO L93 Difference]: Finished difference Result 5113 states and 7440 transitions. [2020-10-15 03:25:17,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:25:17,869 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 03:25:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:17,872 INFO L225 Difference]: With dead ends: 5113 [2020-10-15 03:25:17,872 INFO L226 Difference]: Without dead ends: 3487 [2020-10-15 03:25:17,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2020-10-15 03:25:18,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 1985. [2020-10-15 03:25:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1985 states. [2020-10-15 03:25:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 2791 transitions. [2020-10-15 03:25:18,193 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 2791 transitions. Word has length 84 [2020-10-15 03:25:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:18,193 INFO L479 AbstractCegarLoop]: Abstraction has 1985 states and 2791 transitions. [2020-10-15 03:25:18,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:25:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 2791 transitions. [2020-10-15 03:25:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 03:25:18,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:18,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:18,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:25:18,199 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:18,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:18,199 INFO L82 PathProgramCache]: Analyzing trace with hash -427155230, now seen corresponding path program 1 times [2020-10-15 03:25:18,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:18,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809974477] [2020-10-15 03:25:18,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:20,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:23,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 03:25:23,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:25:23,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:25:23,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:23,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:23,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:23,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:23,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:25:23,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:24,313 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:25:24,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:24,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:24,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:25:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:24,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:24,383 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 03:25:24,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809974477] [2020-10-15 03:25:24,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:24,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:24,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664480727] [2020-10-15 03:25:24,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:24,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:24,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:24,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:24,385 INFO L87 Difference]: Start difference. First operand 1985 states and 2791 transitions. Second operand 8 states. [2020-10-15 03:25:25,146 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 03:25:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:27,089 INFO L93 Difference]: Finished difference Result 5269 states and 7577 transitions. [2020-10-15 03:25:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:25:27,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2020-10-15 03:25:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:27,093 INFO L225 Difference]: With dead ends: 5269 [2020-10-15 03:25:27,093 INFO L226 Difference]: Without dead ends: 3715 [2020-10-15 03:25:27,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3715 states. [2020-10-15 03:25:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3715 to 1985. [2020-10-15 03:25:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1985 states. [2020-10-15 03:25:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 2783 transitions. [2020-10-15 03:25:27,426 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 2783 transitions. Word has length 112 [2020-10-15 03:25:27,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:27,426 INFO L479 AbstractCegarLoop]: Abstraction has 1985 states and 2783 transitions. [2020-10-15 03:25:27,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 2783 transitions. [2020-10-15 03:25:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 03:25:27,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:27,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:27,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:25:27,432 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:27,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1041659619, now seen corresponding path program 1 times [2020-10-15 03:25:27,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:27,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167873044] [2020-10-15 03:25:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:28,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:28,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:28,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:25:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:25:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 03:25:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:33,179 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:25:33,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:33,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:33,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:25:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:33,231 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 03:25:33,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167873044] [2020-10-15 03:25:33,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:33,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:25:33,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613203171] [2020-10-15 03:25:33,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:25:33,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:33,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:25:33,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:25:33,233 INFO L87 Difference]: Start difference. First operand 1985 states and 2783 transitions. Second operand 6 states. [2020-10-15 03:25:33,965 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-15 03:25:35,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:35,586 INFO L93 Difference]: Finished difference Result 5189 states and 7493 transitions. [2020-10-15 03:25:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:25:35,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-10-15 03:25:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:35,590 INFO L225 Difference]: With dead ends: 5189 [2020-10-15 03:25:35,590 INFO L226 Difference]: Without dead ends: 3405 [2020-10-15 03:25:35,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:25:35,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2020-10-15 03:25:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3403. [2020-10-15 03:25:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3403 states. [2020-10-15 03:25:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3403 states to 3403 states and 4909 transitions. [2020-10-15 03:25:36,240 INFO L78 Accepts]: Start accepts. Automaton has 3403 states and 4909 transitions. Word has length 114 [2020-10-15 03:25:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:36,240 INFO L479 AbstractCegarLoop]: Abstraction has 3403 states and 4909 transitions. [2020-10-15 03:25:36,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:25:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3403 states and 4909 transitions. [2020-10-15 03:25:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 03:25:36,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:36,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:36,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:25:36,246 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:36,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash -602449767, now seen corresponding path program 1 times [2020-10-15 03:25:36,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:36,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470868967] [2020-10-15 03:25:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:36,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:36,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:37,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:37,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:41,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:41,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 03:25:41,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:25:41,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:25:41,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:41,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:25:41,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:42,209 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:25:42,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:42,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:42,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:42,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:42,250 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 03:25:42,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470868967] [2020-10-15 03:25:42,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:42,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:42,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790851612] [2020-10-15 03:25:42,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:42,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:42,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:42,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:42,252 INFO L87 Difference]: Start difference. First operand 3403 states and 4909 transitions. Second operand 8 states. [2020-10-15 03:25:43,001 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 03:25:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:45,018 INFO L93 Difference]: Finished difference Result 8051 states and 11735 transitions. [2020-10-15 03:25:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:25:45,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-10-15 03:25:45,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:45,023 INFO L225 Difference]: With dead ends: 8051 [2020-10-15 03:25:45,023 INFO L226 Difference]: Without dead ends: 4877 [2020-10-15 03:25:45,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:25:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4877 states. [2020-10-15 03:25:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4877 to 3403. [2020-10-15 03:25:45,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3403 states. [2020-10-15 03:25:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3403 states to 3403 states and 4897 transitions. [2020-10-15 03:25:45,642 INFO L78 Accepts]: Start accepts. Automaton has 3403 states and 4897 transitions. Word has length 115 [2020-10-15 03:25:45,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:45,643 INFO L479 AbstractCegarLoop]: Abstraction has 3403 states and 4897 transitions. [2020-10-15 03:25:45,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3403 states and 4897 transitions. [2020-10-15 03:25:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-15 03:25:45,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:45,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:25:45,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:25:45,647 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:45,647 INFO L82 PathProgramCache]: Analyzing trace with hash 688324559, now seen corresponding path program 1 times [2020-10-15 03:25:45,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:45,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509158399] [2020-10-15 03:25:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:45,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:47,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:50,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:50,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 03:25:50,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:25:50,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:25:50,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:50,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:50,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:50,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 03:25:50,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-15 03:25:50,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:51,414 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:25:51,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:51,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:51,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:51,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:25:51,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:51,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:51,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:51,466 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 03:25:51,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509158399] [2020-10-15 03:25:51,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:51,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:51,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129322019] [2020-10-15 03:25:51,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:51,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:51,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:51,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:51,468 INFO L87 Difference]: Start difference. First operand 3403 states and 4897 transitions. Second operand 8 states. [2020-10-15 03:25:52,234 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-15 03:25:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:59,301 INFO L93 Difference]: Finished difference Result 32863 states and 48907 transitions. [2020-10-15 03:25:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:25:59,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-10-15 03:25:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:59,334 INFO L225 Difference]: With dead ends: 32863 [2020-10-15 03:25:59,334 INFO L226 Difference]: Without dead ends: 29917 [2020-10-15 03:25:59,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:59,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29917 states. [2020-10-15 03:26:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29917 to 6347. [2020-10-15 03:26:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6347 states. [2020-10-15 03:26:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6347 states to 6347 states and 9233 transitions. [2020-10-15 03:26:00,889 INFO L78 Accepts]: Start accepts. Automaton has 6347 states and 9233 transitions. Word has length 117 [2020-10-15 03:26:00,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:00,889 INFO L479 AbstractCegarLoop]: Abstraction has 6347 states and 9233 transitions. [2020-10-15 03:26:00,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:00,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6347 states and 9233 transitions. [2020-10-15 03:26:00,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-15 03:26:00,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:00,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:00,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:26:00,896 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:00,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:00,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1731609374, now seen corresponding path program 1 times [2020-10-15 03:26:00,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:00,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154973635] [2020-10-15 03:26:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:00,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:02,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:03,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:03,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:05,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:05,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:05,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:26:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 03:26:05,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:06,653 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 03:26:06,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:06,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:06,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:06,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:06,697 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 03:26:06,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154973635] [2020-10-15 03:26:06,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:06,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:06,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770190655] [2020-10-15 03:26:06,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:06,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:06,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:06,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:06,698 INFO L87 Difference]: Start difference. First operand 6347 states and 9233 transitions. Second operand 8 states.