/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-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:38:03,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:38:03,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:38:03,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:38:03,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:38:03,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:38:03,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:38:03,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:38:03,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:38:03,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:38:03,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:38:03,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:38:03,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:38:03,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:38:03,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:38:03,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:38:03,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:38:03,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:38:03,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:38:03,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:38:03,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:38:03,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:38:03,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:38:03,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:38:03,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:38:03,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:38:03,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:38:03,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:38:03,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:38:03,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:38:03,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:38:03,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:38:03,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:38:03,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:38:03,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:38:03,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:38:03,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:38:03,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:38:03,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:38:03,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:38:03,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:38:03,926 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 03:38:03,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:38:03,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:38:03,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:38:03,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:38:03,965 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:38:03,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:38:03,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:38:03,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:38:03,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:38:03,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:38:03,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:38:03,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:38:03,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:38:03,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:38:03,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:38:03,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:38:03,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:38:03,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:38:03,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:38:03,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:38:03,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:38:03,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:38:03,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:38:03,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:38:03,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:38:03,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:38:03,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:38:03,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:38:03,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:38:03,971 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 03:38:04,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:38:04,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:38:04,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:38:04,300 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:38:04,300 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:38:04,301 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 03:38:04,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cfb30a94/ea1504e3a8a548d6a7b5c821b24ef5ec/FLAG415500a02 [2020-10-15 03:38:05,000 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:38:05,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 03:38:05,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cfb30a94/ea1504e3a8a548d6a7b5c821b24ef5ec/FLAG415500a02 [2020-10-15 03:38:05,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cfb30a94/ea1504e3a8a548d6a7b5c821b24ef5ec [2020-10-15 03:38:05,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:38:05,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:38:05,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:38:05,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:38:05,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:38:05,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:38:05" (1/1) ... [2020-10-15 03:38:05,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8831ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:05, skipping insertion in model container [2020-10-15 03:38:05,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:38:05" (1/1) ... [2020-10-15 03:38:05,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:38:05,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:38:05,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:38:05,988 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:38:06,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:38:06,274 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:38:06,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06 WrapperNode [2020-10-15 03:38:06,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:38:06,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:38:06,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:38:06,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:38:06,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (1/1) ... [2020-10-15 03:38:06,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:38:06,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:38:06,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:38:06,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:38:06,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (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 03:38:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:38:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:38:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:38:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:38:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:38:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:38:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:38:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:38:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:38:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:38:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:38:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:38:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:38:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:38:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:38:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:38:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:38:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:38:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:38:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:38:08,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:38:08,511 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:38:08,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:38:08 BoogieIcfgContainer [2020-10-15 03:38:08,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:38:08,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:38:08,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:38:08,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:38:08,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:38:05" (1/3) ... [2020-10-15 03:38:08,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a8b72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:38:08, skipping insertion in model container [2020-10-15 03:38:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:38:06" (2/3) ... [2020-10-15 03:38:08,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a8b72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:38:08, skipping insertion in model container [2020-10-15 03:38:08,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:38:08" (3/3) ... [2020-10-15 03:38:08,528 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 03:38:08,541 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:38:08,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-15 03:38:08,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 03:38:08,590 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:38:08,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:38:08,591 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:38:08,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:38:08,591 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:38:08,591 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:38:08,591 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:38:08,591 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:38:08,620 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states. [2020-10-15 03:38:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 03:38:08,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:38:08,638 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] [2020-10-15 03:38:08,638 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:38:08,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:38:08,644 INFO L82 PathProgramCache]: Analyzing trace with hash -327179082, now seen corresponding path program 1 times [2020-10-15 03:38:08,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:38:08,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845424812] [2020-10-15 03:38:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:38:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:09,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:09,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:09,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:09,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:10,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:10,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:11,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:11,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:14,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 03:38:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:38:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:38:14,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:14,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:38:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:38:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 03:38:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:38:14,830 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:38:14,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:38:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:14,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:14,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:14,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:38:14,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:38:14,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 03:38:14,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:14,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:38:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:38:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:38:14,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:38:14,954 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 03:38:14,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845424812] [2020-10-15 03:38:14,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:38:14,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:38:14,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735662954] [2020-10-15 03:38:14,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:38:14,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:38:14,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:38:14,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:38:14,982 INFO L87 Difference]: Start difference. First operand 462 states. Second operand 8 states. [2020-10-15 03:38:15,543 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2020-10-15 03:38:19,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:38:19,831 INFO L93 Difference]: Finished difference Result 976 states and 1643 transitions. [2020-10-15 03:38:19,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:38:19,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 03:38:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:38:19,866 INFO L225 Difference]: With dead ends: 976 [2020-10-15 03:38:19,866 INFO L226 Difference]: Without dead ends: 836 [2020-10-15 03:38:19,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:38:19,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-15 03:38:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 469. [2020-10-15 03:38:20,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-10-15 03:38:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 605 transitions. [2020-10-15 03:38:20,030 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 605 transitions. Word has length 55 [2020-10-15 03:38:20,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:38:20,031 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 605 transitions. [2020-10-15 03:38:20,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:38:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 605 transitions. [2020-10-15 03:38:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 03:38:20,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:38:20,037 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] [2020-10-15 03:38:20,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:38:20,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:38:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:38:20,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1869485033, now seen corresponding path program 1 times [2020-10-15 03:38:20,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:38:20,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779606186] [2020-10-15 03:38:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:38:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:20,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:22,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:23,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:23,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:25,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:25,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 03:38:25,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:38:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:38:25,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:25,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:38:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:38:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:38:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-15 03:38:25,714 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:38:25,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:38:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:25,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:25,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:25,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:38:25,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:38:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 03:38:25,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:25,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:38:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:38:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:38:25,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:38:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:38:25,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779606186] [2020-10-15 03:38:25,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:38:25,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:38:25,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586894353] [2020-10-15 03:38:25,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:38:25,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:38:25,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:38:25,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:38:25,793 INFO L87 Difference]: Start difference. First operand 469 states and 605 transitions. Second operand 8 states. [2020-10-15 03:38:26,287 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-15 03:38:29,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:38:29,704 INFO L93 Difference]: Finished difference Result 880 states and 1217 transitions. [2020-10-15 03:38:29,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:38:29,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 03:38:29,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:38:29,710 INFO L225 Difference]: With dead ends: 880 [2020-10-15 03:38:29,711 INFO L226 Difference]: Without dead ends: 784 [2020-10-15 03:38:29,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:38:29,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-15 03:38:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 492. [2020-10-15 03:38:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2020-10-15 03:38:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 638 transitions. [2020-10-15 03:38:29,741 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 638 transitions. Word has length 55 [2020-10-15 03:38:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:38:29,741 INFO L479 AbstractCegarLoop]: Abstraction has 492 states and 638 transitions. [2020-10-15 03:38:29,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:38:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 638 transitions. [2020-10-15 03:38:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 03:38:29,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:38:29,744 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] [2020-10-15 03:38:29,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:38:29,745 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:38:29,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:38:29,745 INFO L82 PathProgramCache]: Analyzing trace with hash 815424449, now seen corresponding path program 1 times [2020-10-15 03:38:29,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:38:29,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336286944] [2020-10-15 03:38:29,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:38:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:29,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:29,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:30,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:31,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:31,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:31,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:31,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:33,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:34,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:34,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 03:38:34,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:38:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:38:34,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:34,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:38:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:38:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 03:38:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:38:35,314 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:38:35,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:38:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:35,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:35,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:35,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:38:35,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:38:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 03:38:35,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:35,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:38:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:38:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:38:35,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:38:35,415 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 03:38:35,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336286944] [2020-10-15 03:38:35,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:38:35,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:38:35,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719804920] [2020-10-15 03:38:35,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:38:35,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:38:35,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:38:35,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:38:35,419 INFO L87 Difference]: Start difference. First operand 492 states and 638 transitions. Second operand 8 states. [2020-10-15 03:38:35,846 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-15 03:38:38,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:38:38,715 INFO L93 Difference]: Finished difference Result 934 states and 1270 transitions. [2020-10-15 03:38:38,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:38:38,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 03:38:38,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:38:38,722 INFO L225 Difference]: With dead ends: 934 [2020-10-15 03:38:38,722 INFO L226 Difference]: Without dead ends: 756 [2020-10-15 03:38:38,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:38:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-15 03:38:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 500. [2020-10-15 03:38:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2020-10-15 03:38:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 644 transitions. [2020-10-15 03:38:38,757 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 644 transitions. Word has length 55 [2020-10-15 03:38:38,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:38:38,757 INFO L479 AbstractCegarLoop]: Abstraction has 500 states and 644 transitions. [2020-10-15 03:38:38,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:38:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 644 transitions. [2020-10-15 03:38:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 03:38:38,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:38:38,760 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] [2020-10-15 03:38:38,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:38:38,761 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:38:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:38:38,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1355442055, now seen corresponding path program 1 times [2020-10-15 03:38:38,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:38:38,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166144245] [2020-10-15 03:38:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:38:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:38,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:38,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:39,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:39,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:39,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:40,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:41,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:41,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:41,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:41,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:42,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:43,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:43,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-15 03:38:43,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:38:43,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:38:43,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:43,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:38:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:38:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 03:38:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:38:44,428 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:38:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:38:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:44,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:44,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:38:44,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:38:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:38:44,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:44,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:38:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:38:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:38:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:38:44,476 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 03:38:44,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166144245] [2020-10-15 03:38:44,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:38:44,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:38:44,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893569927] [2020-10-15 03:38:44,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:38:44,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:38:44,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:38:44,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:38:44,481 INFO L87 Difference]: Start difference. First operand 500 states and 644 transitions. Second operand 8 states. [2020-10-15 03:38:44,950 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-15 03:38:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:38:48,611 INFO L93 Difference]: Finished difference Result 1450 states and 2001 transitions. [2020-10-15 03:38:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:38:48,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-15 03:38:48,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:38:48,640 INFO L225 Difference]: With dead ends: 1450 [2020-10-15 03:38:48,640 INFO L226 Difference]: Without dead ends: 1328 [2020-10-15 03:38:48,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:38:48,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2020-10-15 03:38:48,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 504. [2020-10-15 03:38:48,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-15 03:38:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 648 transitions. [2020-10-15 03:38:48,681 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 648 transitions. Word has length 56 [2020-10-15 03:38:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:38:48,681 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 648 transitions. [2020-10-15 03:38:48,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:38:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 648 transitions. [2020-10-15 03:38:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 03:38:48,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:38:48,685 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] [2020-10-15 03:38:48,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:38:48,685 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:38:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:38:48,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1307963583, now seen corresponding path program 1 times [2020-10-15 03:38:48,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:38:48,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420629747] [2020-10-15 03:38:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:38:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:48,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:48,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:49,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:49,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:49,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:49,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:49,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:50,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:50,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:50,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:51,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:51,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:53,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:53,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:38:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:38:54,548 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:38:54,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:38:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:54,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:54,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:38:54,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:38:54,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:38:54,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 03:38:54,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:38:54,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:38:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:38:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:38:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:38:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:38:54,630 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 03:38:54,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420629747] [2020-10-15 03:38:54,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:38:54,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:38:54,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162764395] [2020-10-15 03:38:54,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:38:54,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:38:54,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:38:54,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:38:54,634 INFO L87 Difference]: Start difference. First operand 504 states and 648 transitions. Second operand 7 states. [2020-10-15 03:38:55,071 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2020-10-15 03:38:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:38:58,199 INFO L93 Difference]: Finished difference Result 901 states and 1210 transitions. [2020-10-15 03:38:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:38:58,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-15 03:38:58,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:38:58,205 INFO L225 Difference]: With dead ends: 901 [2020-10-15 03:38:58,205 INFO L226 Difference]: Without dead ends: 805 [2020-10-15 03:38:58,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:38:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-10-15 03:38:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 517. [2020-10-15 03:38:58,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-10-15 03:38:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 665 transitions. [2020-10-15 03:38:58,235 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 665 transitions. Word has length 57 [2020-10-15 03:38:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:38:58,236 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 665 transitions. [2020-10-15 03:38:58,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:38:58,236 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 665 transitions. [2020-10-15 03:38:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 03:38:58,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:38:58,238 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] [2020-10-15 03:38:58,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:38:58,239 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:38:58,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:38:58,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1806735883, now seen corresponding path program 1 times [2020-10-15 03:38:58,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:38:58,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339540988] [2020-10-15 03:38:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:38:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:38:58,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:58,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:58,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:59,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:59,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:59,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:38:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:00,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:00,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:00,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:01,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:02,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:03,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-15 03:39:03,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:39:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 03:39:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:03,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:39:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:39:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:03,824 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:03,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:03,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:03,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:03,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:39:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:03,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:39:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:39:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:39:03,870 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 03:39:03,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339540988] [2020-10-15 03:39:03,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:03,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:39:03,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555435743] [2020-10-15 03:39:03,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:39:03,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:03,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:39:03,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:39:03,872 INFO L87 Difference]: Start difference. First operand 517 states and 665 transitions. Second operand 9 states. [2020-10-15 03:39:04,360 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-15 03:39:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:07,175 INFO L93 Difference]: Finished difference Result 1112 states and 1510 transitions. [2020-10-15 03:39:07,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:39:07,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-10-15 03:39:07,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:07,182 INFO L225 Difference]: With dead ends: 1112 [2020-10-15 03:39:07,182 INFO L226 Difference]: Without dead ends: 862 [2020-10-15 03:39:07,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:39:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2020-10-15 03:39:07,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 553. [2020-10-15 03:39:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-15 03:39:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 728 transitions. [2020-10-15 03:39:07,252 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 728 transitions. Word has length 57 [2020-10-15 03:39:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:07,254 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 728 transitions. [2020-10-15 03:39:07,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:39:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 728 transitions. [2020-10-15 03:39:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 03:39:07,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:07,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:39:07,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:39:07,257 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:07,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:07,257 INFO L82 PathProgramCache]: Analyzing trace with hash -338076184, now seen corresponding path program 1 times [2020-10-15 03:39:07,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:07,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863812738] [2020-10-15 03:39:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:07,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:07,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:07,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:08,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:08,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:09,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:10,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:10,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:10,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:10,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:12,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:12,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 03:39:12,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:39:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:39:12,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:12,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:39:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:39:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 03:39:12,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:13,069 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:13,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:13,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:13,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:13,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:13,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:13,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:39:13,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:13,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:13,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:39:13,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:39:13,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:39:13,119 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 03:39:13,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863812738] [2020-10-15 03:39:13,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:13,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:39:13,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828419548] [2020-10-15 03:39:13,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:39:13,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:13,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:39:13,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:39:13,122 INFO L87 Difference]: Start difference. First operand 553 states and 728 transitions. Second operand 9 states. [2020-10-15 03:39:13,576 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 293 [2020-10-15 03:39:16,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:16,209 INFO L93 Difference]: Finished difference Result 1200 states and 1669 transitions. [2020-10-15 03:39:16,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:39:16,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-10-15 03:39:16,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:16,216 INFO L225 Difference]: With dead ends: 1200 [2020-10-15 03:39:16,216 INFO L226 Difference]: Without dead ends: 1066 [2020-10-15 03:39:16,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:39:16,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-15 03:39:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 541. [2020-10-15 03:39:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-10-15 03:39:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 711 transitions. [2020-10-15 03:39:16,266 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 711 transitions. Word has length 58 [2020-10-15 03:39:16,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:16,266 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 711 transitions. [2020-10-15 03:39:16,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:39:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 711 transitions. [2020-10-15 03:39:16,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 03:39:16,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:16,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:39:16,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:39:16,268 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:16,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:16,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1013274076, now seen corresponding path program 1 times [2020-10-15 03:39:16,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:16,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046021020] [2020-10-15 03:39:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:16,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:16,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:16,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:17,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:17,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:17,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:17,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:17,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:17,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:18,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:18,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:18,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:19,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:20,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:21,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:21,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 03:39:21,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:39:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:39:21,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:21,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:39:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:39:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 03:39:21,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:39:22,008 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:22,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:22,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:22,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:22,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:22,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:22,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:39:22,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:22,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:22,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:39:22,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:22,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:39:22,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:39:22,071 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 03:39:22,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046021020] [2020-10-15 03:39:22,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:22,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:39:22,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191779406] [2020-10-15 03:39:22,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:39:22,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:39:22,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:39:22,074 INFO L87 Difference]: Start difference. First operand 541 states and 711 transitions. Second operand 9 states. [2020-10-15 03:39:22,598 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-15 03:39:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:25,618 INFO L93 Difference]: Finished difference Result 1119 states and 1545 transitions. [2020-10-15 03:39:25,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:39:25,618 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-10-15 03:39:25,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:25,625 INFO L225 Difference]: With dead ends: 1119 [2020-10-15 03:39:25,625 INFO L226 Difference]: Without dead ends: 1115 [2020-10-15 03:39:25,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:39:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-10-15 03:39:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 537. [2020-10-15 03:39:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-15 03:39:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 707 transitions. [2020-10-15 03:39:25,678 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 707 transitions. Word has length 58 [2020-10-15 03:39:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:25,678 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 707 transitions. [2020-10-15 03:39:25,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:39:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 707 transitions. [2020-10-15 03:39:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 03:39:25,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:25,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:39:25,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:39:25,681 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:25,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1014619629, now seen corresponding path program 1 times [2020-10-15 03:39:25,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:25,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368229359] [2020-10-15 03:39:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:25,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:25,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:25,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:25,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:26,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:26,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:26,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:29,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:29,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 03:39:29,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:39:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3823 [2020-10-15 03:39:29,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:29,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:39:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:39:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:39:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:29,979 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:29,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:29,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:29,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:29,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:29,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:29,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:39:29,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:29,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:30,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:39:30,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:30,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:39:30,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:39:30,021 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 03:39:30,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368229359] [2020-10-15 03:39:30,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:30,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:39:30,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412966745] [2020-10-15 03:39:30,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:39:30,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:30,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:39:30,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:39:30,024 INFO L87 Difference]: Start difference. First operand 537 states and 707 transitions. Second operand 6 states. [2020-10-15 03:39:30,463 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-15 03:39:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:32,120 INFO L93 Difference]: Finished difference Result 1125 states and 1576 transitions. [2020-10-15 03:39:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:39:32,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-10-15 03:39:32,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:32,125 INFO L225 Difference]: With dead ends: 1125 [2020-10-15 03:39:32,125 INFO L226 Difference]: Without dead ends: 1003 [2020-10-15 03:39:32,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:39:32,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-10-15 03:39:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 697. [2020-10-15 03:39:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-10-15 03:39:32,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 941 transitions. [2020-10-15 03:39:32,198 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 941 transitions. Word has length 71 [2020-10-15 03:39:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:32,198 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 941 transitions. [2020-10-15 03:39:32,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:39:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 941 transitions. [2020-10-15 03:39:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 03:39:32,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:32,201 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] [2020-10-15 03:39:32,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:39:32,201 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:32,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1333241208, now seen corresponding path program 1 times [2020-10-15 03:39:32,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:32,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143197481] [2020-10-15 03:39:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:32,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:32,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:32,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:34,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:34,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2352 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 03:39:34,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:35,044 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:35,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:35,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:35,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:35,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:35,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:35,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:39:35,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:35,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:39:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:39:35,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:39:35,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143197481] [2020-10-15 03:39:35,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:35,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:39:35,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319718657] [2020-10-15 03:39:35,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:39:35,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:35,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:39:35,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:39:35,095 INFO L87 Difference]: Start difference. First operand 697 states and 941 transitions. Second operand 6 states. [2020-10-15 03:39:35,984 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2020-10-15 03:39:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:37,568 INFO L93 Difference]: Finished difference Result 1461 states and 2037 transitions. [2020-10-15 03:39:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:39:37,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-10-15 03:39:37,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:37,572 INFO L225 Difference]: With dead ends: 1461 [2020-10-15 03:39:37,572 INFO L226 Difference]: Without dead ends: 982 [2020-10-15 03:39:37,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:39:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-10-15 03:39:37,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 980. [2020-10-15 03:39:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2020-10-15 03:39:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1363 transitions. [2020-10-15 03:39:37,728 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1363 transitions. Word has length 72 [2020-10-15 03:39:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:37,728 INFO L479 AbstractCegarLoop]: Abstraction has 980 states and 1363 transitions. [2020-10-15 03:39:37,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:39:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1363 transitions. [2020-10-15 03:39:37,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 03:39:37,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:37,732 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] [2020-10-15 03:39:37,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:39:37,733 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:37,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:37,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2090924500, now seen corresponding path program 1 times [2020-10-15 03:39:37,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:37,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486135995] [2020-10-15 03:39:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:37,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:37,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:37,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:40,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 03:39:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:43,202 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:43,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:43,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:43,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:43,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:43,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 03:39:43,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:43,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:39:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:39:43,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:43,257 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 03:39:43,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486135995] [2020-10-15 03:39:43,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:43,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:39:43,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623245742] [2020-10-15 03:39:43,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:39:43,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:43,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:39:43,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:39:43,259 INFO L87 Difference]: Start difference. First operand 980 states and 1363 transitions. Second operand 6 states. [2020-10-15 03:39:43,703 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-15 03:39:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:45,121 INFO L93 Difference]: Finished difference Result 1951 states and 2771 transitions. [2020-10-15 03:39:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:39:45,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-10-15 03:39:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:45,131 INFO L225 Difference]: With dead ends: 1951 [2020-10-15 03:39:45,131 INFO L226 Difference]: Without dead ends: 1162 [2020-10-15 03:39:45,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:39:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2020-10-15 03:39:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1160. [2020-10-15 03:39:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2020-10-15 03:39:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1637 transitions. [2020-10-15 03:39:45,303 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1637 transitions. Word has length 73 [2020-10-15 03:39:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:45,303 INFO L479 AbstractCegarLoop]: Abstraction has 1160 states and 1637 transitions. [2020-10-15 03:39:45,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:39:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1637 transitions. [2020-10-15 03:39:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 03:39:45,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:45,306 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] [2020-10-15 03:39:45,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:39:45,306 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:45,307 INFO L82 PathProgramCache]: Analyzing trace with hash 354736013, now seen corresponding path program 1 times [2020-10-15 03:39:45,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:45,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649205382] [2020-10-15 03:39:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:45,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:45,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:45,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:45,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:45,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:47,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:47,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-15 03:39:47,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:39:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2275 [2020-10-15 03:39:47,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:47,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:39:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:39:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 03:39:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:48,054 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:48,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:48,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:48,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:48,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:48,095 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 03:39:48,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649205382] [2020-10-15 03:39:48,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:48,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:39:48,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773802587] [2020-10-15 03:39:48,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:39:48,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:48,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:39:48,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:39:48,097 INFO L87 Difference]: Start difference. First operand 1160 states and 1637 transitions. Second operand 6 states. [2020-10-15 03:39:48,575 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-15 03:39:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:50,010 INFO L93 Difference]: Finished difference Result 3034 states and 4350 transitions. [2020-10-15 03:39:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:39:50,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-10-15 03:39:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:50,018 INFO L225 Difference]: With dead ends: 3034 [2020-10-15 03:39:50,018 INFO L226 Difference]: Without dead ends: 1970 [2020-10-15 03:39:50,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:39:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2020-10-15 03:39:50,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1968. [2020-10-15 03:39:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1968 states. [2020-10-15 03:39:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2796 transitions. [2020-10-15 03:39:50,284 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2796 transitions. Word has length 73 [2020-10-15 03:39:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:50,285 INFO L479 AbstractCegarLoop]: Abstraction has 1968 states and 2796 transitions. [2020-10-15 03:39:50,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:39:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2796 transitions. [2020-10-15 03:39:50,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 03:39:50,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:50,289 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] [2020-10-15 03:39:50,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:39:50,289 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1004206986, now seen corresponding path program 1 times [2020-10-15 03:39:50,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:50,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827767608] [2020-10-15 03:39:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:50,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:50,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:50,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:50,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:50,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2407 [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:39:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 03:39:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 03:39:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:53,173 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:39:53,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:39:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:53,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:53,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:39:53,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:39:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:39:53,209 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 03:39:53,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827767608] [2020-10-15 03:39:53,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:39:53,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:39:53,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131462030] [2020-10-15 03:39:53,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:39:53,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:39:53,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:39:53,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:39:53,212 INFO L87 Difference]: Start difference. First operand 1968 states and 2796 transitions. Second operand 6 states. [2020-10-15 03:39:55,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:39:55,964 INFO L93 Difference]: Finished difference Result 6300 states and 9085 transitions. [2020-10-15 03:39:55,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 03:39:55,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-10-15 03:39:55,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:39:55,980 INFO L225 Difference]: With dead ends: 6300 [2020-10-15 03:39:55,981 INFO L226 Difference]: Without dead ends: 4491 [2020-10-15 03:39:55,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:39:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4491 states. [2020-10-15 03:39:56,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4491 to 4487. [2020-10-15 03:39:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4487 states. [2020-10-15 03:39:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 6429 transitions. [2020-10-15 03:39:56,594 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 6429 transitions. Word has length 73 [2020-10-15 03:39:56,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:39:56,594 INFO L479 AbstractCegarLoop]: Abstraction has 4487 states and 6429 transitions. [2020-10-15 03:39:56,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:39:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 6429 transitions. [2020-10-15 03:39:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 03:39:56,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:39:56,600 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] [2020-10-15 03:39:56,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:39:56,600 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:39:56,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:39:56,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1143076069, now seen corresponding path program 1 times [2020-10-15 03:39:56,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:39:56,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668882101] [2020-10-15 03:39:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:39:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:39:56,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:56,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:39:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:00,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:00,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 03:40:00,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:40:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3660 [2020-10-15 03:40:00,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:00,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:40:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:40:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 03:40:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:00,766 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:40:00,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:40:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:00,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:40:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:40:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:40:00,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:00,795 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 03:40:00,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668882101] [2020-10-15 03:40:00,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:40:00,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:40:00,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575444849] [2020-10-15 03:40:00,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:40:00,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:40:00,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:40:00,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:40:00,796 INFO L87 Difference]: Start difference. First operand 4487 states and 6429 transitions. Second operand 8 states. [2020-10-15 03:40:01,290 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-15 03:40:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:40:04,864 INFO L93 Difference]: Finished difference Result 15959 states and 23090 transitions. [2020-10-15 03:40:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:40:04,864 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-10-15 03:40:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:40:04,906 INFO L225 Difference]: With dead ends: 15959 [2020-10-15 03:40:04,906 INFO L226 Difference]: Without dead ends: 12293 [2020-10-15 03:40:04,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:40:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12293 states. [2020-10-15 03:40:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12293 to 4403. [2020-10-15 03:40:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4403 states. [2020-10-15 03:40:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 6306 transitions. [2020-10-15 03:40:05,604 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 6306 transitions. Word has length 74 [2020-10-15 03:40:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:40:05,605 INFO L479 AbstractCegarLoop]: Abstraction has 4403 states and 6306 transitions. [2020-10-15 03:40:05,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:40:05,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 6306 transitions. [2020-10-15 03:40:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 03:40:05,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:40:05,609 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] [2020-10-15 03:40:05,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:40:05,610 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:40:05,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:40:05,610 INFO L82 PathProgramCache]: Analyzing trace with hash -298954303, now seen corresponding path program 1 times [2020-10-15 03:40:05,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:40:05,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188663342] [2020-10-15 03:40:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:40:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:05,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:05,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:05,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:05,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:06,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:06,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:09,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:09,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 03:40:09,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:40:09,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4008 [2020-10-15 03:40:09,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:09,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:40:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:40:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 03:40:09,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:10,096 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:40:10,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:40:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:10,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:10,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:40:10,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:10,124 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 03:40:10,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188663342] [2020-10-15 03:40:10,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:40:10,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:40:10,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344092402] [2020-10-15 03:40:10,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:40:10,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:40:10,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:40:10,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:40:10,126 INFO L87 Difference]: Start difference. First operand 4403 states and 6306 transitions. Second operand 8 states. [2020-10-15 03:40:10,614 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-15 03:40:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:40:14,359 INFO L93 Difference]: Finished difference Result 13969 states and 20239 transitions. [2020-10-15 03:40:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:40:14,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-10-15 03:40:14,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:40:14,383 INFO L225 Difference]: With dead ends: 13969 [2020-10-15 03:40:14,384 INFO L226 Difference]: Without dead ends: 11399 [2020-10-15 03:40:14,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:40:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11399 states. [2020-10-15 03:40:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11399 to 4443. [2020-10-15 03:40:15,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4443 states. [2020-10-15 03:40:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6346 transitions. [2020-10-15 03:40:15,135 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6346 transitions. Word has length 74 [2020-10-15 03:40:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:40:15,135 INFO L479 AbstractCegarLoop]: Abstraction has 4443 states and 6346 transitions. [2020-10-15 03:40:15,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:40:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6346 transitions. [2020-10-15 03:40:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 03:40:15,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:40:15,139 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] [2020-10-15 03:40:15,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:40:15,140 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:40:15,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:40:15,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1248913492, now seen corresponding path program 1 times [2020-10-15 03:40:15,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:40:15,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272296113] [2020-10-15 03:40:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:40:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:15,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:15,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:15,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:16,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:18,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:18,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 03:40:18,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3567 [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 03:40:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:19,198 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:40:19,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:40:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:19,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:40:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:40:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:40:19,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:19,233 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 03:40:19,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272296113] [2020-10-15 03:40:19,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:40:19,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:40:19,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68655787] [2020-10-15 03:40:19,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:40:19,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:40:19,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:40:19,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:40:19,235 INFO L87 Difference]: Start difference. First operand 4443 states and 6346 transitions. Second operand 7 states. [2020-10-15 03:40:19,711 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-15 03:40:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:40:23,656 INFO L93 Difference]: Finished difference Result 14344 states and 20689 transitions. [2020-10-15 03:40:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:40:23,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-15 03:40:23,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:40:23,681 INFO L225 Difference]: With dead ends: 14344 [2020-10-15 03:40:23,681 INFO L226 Difference]: Without dead ends: 13582 [2020-10-15 03:40:23,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:40:23,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13582 states. [2020-10-15 03:40:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13582 to 4443. [2020-10-15 03:40:24,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4443 states. [2020-10-15 03:40:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6342 transitions. [2020-10-15 03:40:24,536 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6342 transitions. Word has length 74 [2020-10-15 03:40:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:40:24,536 INFO L479 AbstractCegarLoop]: Abstraction has 4443 states and 6342 transitions. [2020-10-15 03:40:24,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:40:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6342 transitions. [2020-10-15 03:40:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-15 03:40:24,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:40:24,540 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] [2020-10-15 03:40:24,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:40:24,540 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:40:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:40:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1098466720, now seen corresponding path program 1 times [2020-10-15 03:40:24,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:40:24,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588165556] [2020-10-15 03:40:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:40:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:24,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:24,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:24,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:24,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:25,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:25,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 03:40:25,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 03:40:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:25,689 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:40:25,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:40:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:25,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:25,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:40:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:40:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:40:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:25,717 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 03:40:25,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588165556] [2020-10-15 03:40:25,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:40:25,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:40:25,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359051342] [2020-10-15 03:40:25,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:40:25,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:40:25,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:40:25,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:40:25,719 INFO L87 Difference]: Start difference. First operand 4443 states and 6342 transitions. Second operand 4 states. [2020-10-15 03:40:26,166 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-15 03:40:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:40:28,666 INFO L93 Difference]: Finished difference Result 10879 states and 15688 transitions. [2020-10-15 03:40:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:40:28,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-10-15 03:40:28,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:40:28,680 INFO L225 Difference]: With dead ends: 10879 [2020-10-15 03:40:28,680 INFO L226 Difference]: Without dead ends: 7505 [2020-10-15 03:40:28,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:40:28,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2020-10-15 03:40:29,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7071. [2020-10-15 03:40:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7071 states. [2020-10-15 03:40:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7071 states to 7071 states and 10098 transitions. [2020-10-15 03:40:29,859 INFO L78 Accepts]: Start accepts. Automaton has 7071 states and 10098 transitions. Word has length 75 [2020-10-15 03:40:29,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:40:29,859 INFO L479 AbstractCegarLoop]: Abstraction has 7071 states and 10098 transitions. [2020-10-15 03:40:29,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:40:29,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7071 states and 10098 transitions. [2020-10-15 03:40:29,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:40:29,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:40:29,863 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 03:40:29,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:40:29,863 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:40:29,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:40:29,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1172463621, now seen corresponding path program 1 times [2020-10-15 03:40:29,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:40:29,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732400786] [2020-10-15 03:40:29,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:40:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:29,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:29,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:29,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:32,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2434 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:40:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:40:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:32,814 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:40:32,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:40:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:32,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:32,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:40:32,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:32,849 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 03:40:32,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732400786] [2020-10-15 03:40:32,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:40:32,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 03:40:32,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070340237] [2020-10-15 03:40:32,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 03:40:32,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:40:32,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 03:40:32,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:40:32,850 INFO L87 Difference]: Start difference. First operand 7071 states and 10098 transitions. Second operand 10 states. [2020-10-15 03:40:33,293 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-15 03:40:39,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:40:39,090 INFO L93 Difference]: Finished difference Result 32347 states and 46685 transitions. [2020-10-15 03:40:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:40:39,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-15 03:40:39,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:40:39,130 INFO L225 Difference]: With dead ends: 32347 [2020-10-15 03:40:39,130 INFO L226 Difference]: Without dead ends: 25673 [2020-10-15 03:40:39,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2020-10-15 03:40:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25673 states. [2020-10-15 03:40:41,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25673 to 14610. [2020-10-15 03:40:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14610 states. [2020-10-15 03:40:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14610 states to 14610 states and 20885 transitions. [2020-10-15 03:40:41,724 INFO L78 Accepts]: Start accepts. Automaton has 14610 states and 20885 transitions. Word has length 76 [2020-10-15 03:40:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:40:41,724 INFO L479 AbstractCegarLoop]: Abstraction has 14610 states and 20885 transitions. [2020-10-15 03:40:41,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 03:40:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 14610 states and 20885 transitions. [2020-10-15 03:40:41,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:40:41,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:40:41,729 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 03:40:41,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:40:41,729 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:40:41,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:40:41,729 INFO L82 PathProgramCache]: Analyzing trace with hash -262681527, now seen corresponding path program 1 times [2020-10-15 03:40:41,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:40:41,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939005703] [2020-10-15 03:40:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:40:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:41,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:41,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:41,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:42,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:42,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:42,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:40:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:40:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:40:46,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:47,179 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:40:47,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:40:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:47,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:40:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:40:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:40:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:40:47,212 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 03:40:47,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939005703] [2020-10-15 03:40:47,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:40:47,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:40:47,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883310606] [2020-10-15 03:40:47,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:40:47,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:40:47,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:40:47,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:40:47,215 INFO L87 Difference]: Start difference. First operand 14610 states and 20885 transitions. Second operand 6 states. [2020-10-15 03:40:47,654 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-15 03:40:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:40:54,098 INFO L93 Difference]: Finished difference Result 40314 states and 58150 transitions. [2020-10-15 03:40:54,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:40:54,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:40:54,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:40:54,132 INFO L225 Difference]: With dead ends: 40314 [2020-10-15 03:40:54,133 INFO L226 Difference]: Without dead ends: 33637 [2020-10-15 03:40:54,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:40:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33637 states. [2020-10-15 03:40:58,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33637 to 23657. [2020-10-15 03:40:58,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23657 states. [2020-10-15 03:40:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23657 states to 23657 states and 33675 transitions. [2020-10-15 03:40:58,303 INFO L78 Accepts]: Start accepts. Automaton has 23657 states and 33675 transitions. Word has length 76 [2020-10-15 03:40:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:40:58,304 INFO L479 AbstractCegarLoop]: Abstraction has 23657 states and 33675 transitions. [2020-10-15 03:40:58,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:40:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 23657 states and 33675 transitions. [2020-10-15 03:40:58,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:40:58,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:40:58,309 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 03:40:58,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:40:58,309 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:40:58,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:40:58,310 INFO L82 PathProgramCache]: Analyzing trace with hash -465024327, now seen corresponding path program 1 times [2020-10-15 03:40:58,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:40:58,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077536104] [2020-10-15 03:40:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:40:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:40:58,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:58,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:58,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:58,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:40:59,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:40:59,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:40:59,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:40:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1531 [2020-10-15 03:40:59,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:40:59,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:40:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:40:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 03:40:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:40:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:41:00,310 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:41:00,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:41:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:41:00,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:00,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:41:00,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:41:00,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:41:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:41:00,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:41:00,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:41:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:41:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:41:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:41:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:41:00,344 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 03:41:00,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077536104] [2020-10-15 03:41:00,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:41:00,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:41:00,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700809282] [2020-10-15 03:41:00,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:41:00,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:41:00,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:41:00,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:41:00,345 INFO L87 Difference]: Start difference. First operand 23657 states and 33675 transitions. Second operand 6 states. [2020-10-15 03:41:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:41:08,405 INFO L93 Difference]: Finished difference Result 43493 states and 61686 transitions. [2020-10-15 03:41:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 03:41:08,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:41:08,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:41:08,440 INFO L225 Difference]: With dead ends: 43493 [2020-10-15 03:41:08,440 INFO L226 Difference]: Without dead ends: 32965 [2020-10-15 03:41:08,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:41:08,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32965 states. [2020-10-15 03:41:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32965 to 22443. [2020-10-15 03:41:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22443 states. [2020-10-15 03:41:12,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22443 states to 22443 states and 31566 transitions. [2020-10-15 03:41:12,459 INFO L78 Accepts]: Start accepts. Automaton has 22443 states and 31566 transitions. Word has length 76 [2020-10-15 03:41:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:41:12,459 INFO L479 AbstractCegarLoop]: Abstraction has 22443 states and 31566 transitions. [2020-10-15 03:41:12,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:41:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 22443 states and 31566 transitions. [2020-10-15 03:41:12,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:41:12,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:41:12,465 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 03:41:12,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:41:12,465 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:41:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:41:12,466 INFO L82 PathProgramCache]: Analyzing trace with hash 431568496, now seen corresponding path program 1 times [2020-10-15 03:41:12,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:41:12,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219120340] [2020-10-15 03:41:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:41:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:41:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:12,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:12,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:12,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:41:12,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:41:12,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 03:41:12,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-15 03:41:12,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:41:12,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:41:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:41:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-15 03:41:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 03:41:12,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:41:13,336 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:41:13,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:41:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:41:13,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:13,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:41:13,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:41:13,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:41:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:41:13,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:41:13,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:41:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:41:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:41:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:41:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:41:13,366 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 03:41:13,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219120340] [2020-10-15 03:41:13,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:41:13,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:41:13,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543619400] [2020-10-15 03:41:13,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:41:13,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:41:13,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:41:13,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:41:13,368 INFO L87 Difference]: Start difference. First operand 22443 states and 31566 transitions. Second operand 4 states. [2020-10-15 03:41:13,834 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-15 03:41:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:41:22,326 INFO L93 Difference]: Finished difference Result 61051 states and 85714 transitions. [2020-10-15 03:41:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:41:22,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-10-15 03:41:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:41:22,537 INFO L225 Difference]: With dead ends: 61051 [2020-10-15 03:41:22,537 INFO L226 Difference]: Without dead ends: 40250 [2020-10-15 03:41:22,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:41:22,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40250 states. [2020-10-15 03:41:29,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40250 to 37455. [2020-10-15 03:41:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37455 states. [2020-10-15 03:41:29,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37455 states to 37455 states and 52270 transitions. [2020-10-15 03:41:29,543 INFO L78 Accepts]: Start accepts. Automaton has 37455 states and 52270 transitions. Word has length 76 [2020-10-15 03:41:29,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:41:29,543 INFO L479 AbstractCegarLoop]: Abstraction has 37455 states and 52270 transitions. [2020-10-15 03:41:29,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:41:29,544 INFO L276 IsEmpty]: Start isEmpty. Operand 37455 states and 52270 transitions. [2020-10-15 03:41:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:41:29,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:41:29,550 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 03:41:29,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:41:29,551 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:41:29,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:41:29,551 INFO L82 PathProgramCache]: Analyzing trace with hash 430564796, now seen corresponding path program 1 times [2020-10-15 03:41:29,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:41:29,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622813023] [2020-10-15 03:41:29,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:41:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:41:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:29,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:29,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:29,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:29,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:30,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:34,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:41:34,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4551 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:41:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:41:34,625 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2020-10-15 03:41:34,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:41:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:41:34,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:41:34,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:41:34,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:41:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:41:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:41:34,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:41:34,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:41:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:41:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:41:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:41:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:41:34,655 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 03:41:34,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622813023] [2020-10-15 03:41:34,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:41:34,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:41:34,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523981371] [2020-10-15 03:41:34,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:41:34,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:41:34,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:41:34,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:41:34,658 INFO L87 Difference]: Start difference. First operand 37455 states and 52270 transitions. Second operand 9 states. [2020-10-15 03:41:35,166 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-15 03:41:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:41:51,369 INFO L93 Difference]: Finished difference Result 111891 states and 156620 transitions. [2020-10-15 03:41:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 03:41:51,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-15 03:41:51,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:41:51,455 INFO L225 Difference]: With dead ends: 111891 [2020-10-15 03:41:51,455 INFO L226 Difference]: Without dead ends: 76078 [2020-10-15 03:41:51,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2020-10-15 03:41:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76078 states.