/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:42:55,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:42:55,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:42:55,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:42:55,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:42:55,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:42:55,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:42:55,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:42:55,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:42:55,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:42:55,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:42:55,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:42:55,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:42:55,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:42:55,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:42:55,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:42:55,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:42:55,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:42:55,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:42:55,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:42:55,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:42:55,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:42:55,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:42:55,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:42:55,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:42:55,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:42:55,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:42:55,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:42:55,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:42:55,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:42:55,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:42:55,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:42:55,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:42:55,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:42:55,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:42:55,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:42:55,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:42:55,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:42:55,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:42:55,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:42:55,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:42:55,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:42:55,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:42:55,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:42:55,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:42:55,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:42:55,252 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:42:55,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:42:55,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:42:55,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:42:55,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:42:55,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:42:55,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:42:55,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:42:55,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:42:55,256 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:42:55,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:42:55,256 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:42:55,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:42:55,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:42:55,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:42:55,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:42:55,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:42:55,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:42:55,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:42:55,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:42:55,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:42:55,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:42:55,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:42:55,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:42:55,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:42:55,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:42:55,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:42:55,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:42:55,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:42:55,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:42:55,589 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:42:55,590 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:42:55,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce7d1c830/40834c91422446ceb6938d4da247e0bf/FLAGfbbf5d9e2 [2020-10-15 02:42:56,117 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:42:56,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:42:56,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce7d1c830/40834c91422446ceb6938d4da247e0bf/FLAGfbbf5d9e2 [2020-10-15 02:42:56,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce7d1c830/40834c91422446ceb6938d4da247e0bf [2020-10-15 02:42:56,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:42:56,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:42:56,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:42:56,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:42:56,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:42:56,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:42:56" (1/1) ... [2020-10-15 02:42:56,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e399bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:56, skipping insertion in model container [2020-10-15 02:42:56,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:42:56" (1/1) ... [2020-10-15 02:42:56,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:42:56,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:42:56,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:42:56,976 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:42:57,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:42:57,058 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:42:57,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57 WrapperNode [2020-10-15 02:42:57,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:42:57,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:42:57,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:42:57,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:42:57,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... [2020-10-15 02:42:57,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:42:57,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:42:57,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:42:57,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:42:57,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:42:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:42:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:42:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:42:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:42:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:42:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:42:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:42:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:42:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:42:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:42:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:42:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:42:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:42:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:42:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:42:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:42:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:42:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:42:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:42:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:42:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:42:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:42:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:42:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:42:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:42:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:42:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:42:57,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:42:57,939 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:42:57,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:42:57 BoogieIcfgContainer [2020-10-15 02:42:57,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:42:57,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:42:57,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:42:57,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:42:57,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:42:56" (1/3) ... [2020-10-15 02:42:57,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7151a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:42:57, skipping insertion in model container [2020-10-15 02:42:57,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:42:57" (2/3) ... [2020-10-15 02:42:57,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7151a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:42:57, skipping insertion in model container [2020-10-15 02:42:57,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:42:57" (3/3) ... [2020-10-15 02:42:57,953 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:42:57,963 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:42:57,971 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:42:57,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:42:58,008 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:42:58,008 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:42:58,009 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:42:58,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:42:58,009 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:42:58,009 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:42:58,009 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:42:58,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:42:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-10-15 02:42:58,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:42:58,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:42:58,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:42:58,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:42:58,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:42:58,055 INFO L82 PathProgramCache]: Analyzing trace with hash 440389987, now seen corresponding path program 1 times [2020-10-15 02:42:58,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:42:58,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828881801] [2020-10-15 02:42:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:42:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:58,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:58,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:42:58,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-15 02:42:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:58,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:42:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:42:59,056 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:59,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:59,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:42:59,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:42:59,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:42:59,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:42:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:59,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:59,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:42:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:42:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:42:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:42:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:42:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:59,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:42:59,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:42:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:42:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:42:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:42:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:59,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:59,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:59,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:59,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:42:59,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:59,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:42:59,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828881801] [2020-10-15 02:42:59,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:59,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:42:59,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231945692] [2020-10-15 02:42:59,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:42:59,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:59,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:42:59,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:42:59,356 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 6 states. [2020-10-15 02:43:00,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:00,457 INFO L93 Difference]: Finished difference Result 287 states and 459 transitions. [2020-10-15 02:43:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:43:00,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-15 02:43:00,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:00,471 INFO L225 Difference]: With dead ends: 287 [2020-10-15 02:43:00,471 INFO L226 Difference]: Without dead ends: 183 [2020-10-15 02:43:00,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:00,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-15 02:43:00,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 168. [2020-10-15 02:43:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-15 02:43:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 270 transitions. [2020-10-15 02:43:00,535 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 270 transitions. Word has length 65 [2020-10-15 02:43:00,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:00,535 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 270 transitions. [2020-10-15 02:43:00,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:43:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 270 transitions. [2020-10-15 02:43:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:43:00,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:00,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:00,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:43:00,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:00,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:00,540 INFO L82 PathProgramCache]: Analyzing trace with hash -588969311, now seen corresponding path program 1 times [2020-10-15 02:43:00,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:00,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849452766] [2020-10-15 02:43:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:00,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:43:01,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-10-15 02:43:01,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:43:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:43:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:43:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,348 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:01,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:01,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:43:01,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:01,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:43:01,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-15 02:43:01,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:43:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:43:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:01,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:43:01,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:43:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:01,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:43:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:01,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:43:01,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:01,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:43:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:01,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:43:01,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:01,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:01,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:43:01,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:43:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:01,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:43:01,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:01,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:01,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:01,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:01,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:01,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:01,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:01,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:43:01,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:01,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:01,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:01,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849452766] [2020-10-15 02:43:01,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:01,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:43:01,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185042676] [2020-10-15 02:43:01,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:43:01,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:01,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:43:01,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:43:01,803 INFO L87 Difference]: Start difference. First operand 168 states and 270 transitions. Second operand 12 states. [2020-10-15 02:43:02,323 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:02,539 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-15 02:43:02,803 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:02,984 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:04,594 INFO L93 Difference]: Finished difference Result 285 states and 451 transitions. [2020-10-15 02:43:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:43:04,594 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-15 02:43:04,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:04,598 INFO L225 Difference]: With dead ends: 285 [2020-10-15 02:43:04,599 INFO L226 Difference]: Without dead ends: 183 [2020-10-15 02:43:04,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:43:04,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-15 02:43:04,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 168. [2020-10-15 02:43:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-15 02:43:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 240 transitions. [2020-10-15 02:43:04,625 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 240 transitions. Word has length 65 [2020-10-15 02:43:04,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:04,625 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 240 transitions. [2020-10-15 02:43:04,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:43:04,626 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 240 transitions. [2020-10-15 02:43:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:43:04,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:04,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:04,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:43:04,630 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:04,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:04,630 INFO L82 PathProgramCache]: Analyzing trace with hash -732684485, now seen corresponding path program 1 times [2020-10-15 02:43:04,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:04,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342997479] [2020-10-15 02:43:04,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:04,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:04,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:04,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:05,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:09,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:09,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:43:09,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:43:09,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 02:43:09,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:09,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:43:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 02:43:09,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:09,896 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:09,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:09,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:09,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:09,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:09,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:09,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:43:09,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:09,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:09,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:09,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:09,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:10,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 02:43:10,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:10,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:43:10,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:10,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:43:10,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:10,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:43:10,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:10,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:43:10,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:10,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:10,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:10,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:10,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:43:10,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:10,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:10,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:10,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:43:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:43:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:43:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:43:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:10,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:43:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:10,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:43:10,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:10,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:10,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342997479] [2020-10-15 02:43:10,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:10,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:10,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031019531] [2020-10-15 02:43:10,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:10,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:10,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:10,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:10,392 INFO L87 Difference]: Start difference. First operand 168 states and 240 transitions. Second operand 9 states. [2020-10-15 02:43:10,574 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:12,537 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:43:12,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:12,731 INFO L93 Difference]: Finished difference Result 387 states and 581 transitions. [2020-10-15 02:43:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:43:12,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-15 02:43:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:12,740 INFO L225 Difference]: With dead ends: 387 [2020-10-15 02:43:12,740 INFO L226 Difference]: Without dead ends: 291 [2020-10-15 02:43:12,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:43:12,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-15 02:43:12,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 256. [2020-10-15 02:43:12,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-15 02:43:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 377 transitions. [2020-10-15 02:43:12,813 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 377 transitions. Word has length 94 [2020-10-15 02:43:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:12,814 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 377 transitions. [2020-10-15 02:43:12,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 377 transitions. [2020-10-15 02:43:12,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:43:12,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:12,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:12,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:43:12,827 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:12,827 INFO L82 PathProgramCache]: Analyzing trace with hash -191182832, now seen corresponding path program 1 times [2020-10-15 02:43:12,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:12,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227741436] [2020-10-15 02:43:12,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:12,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:12,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:17,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:17,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 02:43:17,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:43:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 02:43:17,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:17,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:17,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-15 02:43:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:18,132 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:18,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:18,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:43:18,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-15 02:43:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:43:18,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:43:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:18,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:18,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:18,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:18,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:18,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:18,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:18,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:18,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:18,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:18,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:43:18,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:18,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:43:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:43:18,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:43:18,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:43:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:43:18,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:18,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:43:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:18,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:18,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:18,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:18,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:18,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:18,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:18,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:18,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:18,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:18,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:18,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227741436] [2020-10-15 02:43:18,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:18,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:18,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621778656] [2020-10-15 02:43:18,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:18,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:18,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:18,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:18,545 INFO L87 Difference]: Start difference. First operand 256 states and 377 transitions. Second operand 9 states. [2020-10-15 02:43:18,720 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:18,920 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-15 02:43:19,148 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-15 02:43:19,495 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-15 02:43:20,418 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:23,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:23,084 INFO L93 Difference]: Finished difference Result 999 states and 1494 transitions. [2020-10-15 02:43:23,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:43:23,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-15 02:43:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:23,091 INFO L225 Difference]: With dead ends: 999 [2020-10-15 02:43:23,091 INFO L226 Difference]: Without dead ends: 769 [2020-10-15 02:43:23,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:43:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-15 02:43:23,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 689. [2020-10-15 02:43:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-15 02:43:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1015 transitions. [2020-10-15 02:43:23,150 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1015 transitions. Word has length 96 [2020-10-15 02:43:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:23,151 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1015 transitions. [2020-10-15 02:43:23,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:23,151 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1015 transitions. [2020-10-15 02:43:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:43:23,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:23,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:23,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:43:23,154 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:23,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1289117976, now seen corresponding path program 1 times [2020-10-15 02:43:23,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:23,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106097453] [2020-10-15 02:43:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:23,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:23,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:23,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:24,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:43:28,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:43:28,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:43:28,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:28,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:43:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,385 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:28,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:28,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:28,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:28,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:28,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:28,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:43:28,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:43:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:28,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:28,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:28,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:28,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:28,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:28,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:28,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:28,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:28,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:28,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:43:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:43:28,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:28,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:28,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:43:28,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:43:28,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:43:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:28,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:28,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:28,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:28,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:43:28,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:28,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:28,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106097453] [2020-10-15 02:43:28,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:28,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:28,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777442033] [2020-10-15 02:43:28,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:28,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:28,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:28,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:28,726 INFO L87 Difference]: Start difference. First operand 689 states and 1015 transitions. Second operand 9 states. [2020-10-15 02:43:28,943 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:29,140 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-15 02:43:29,569 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-15 02:43:29,770 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-15 02:43:30,552 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:33,314 INFO L93 Difference]: Finished difference Result 2683 states and 3989 transitions. [2020-10-15 02:43:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:43:33,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-15 02:43:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:33,329 INFO L225 Difference]: With dead ends: 2683 [2020-10-15 02:43:33,329 INFO L226 Difference]: Without dead ends: 2051 [2020-10-15 02:43:33,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:43:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2020-10-15 02:43:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1849. [2020-10-15 02:43:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1849 states. [2020-10-15 02:43:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2695 transitions. [2020-10-15 02:43:33,469 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2695 transitions. Word has length 97 [2020-10-15 02:43:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:33,470 INFO L479 AbstractCegarLoop]: Abstraction has 1849 states and 2695 transitions. [2020-10-15 02:43:33,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2695 transitions. [2020-10-15 02:43:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:43:33,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:33,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:33,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:43:33,481 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash -26648904, now seen corresponding path program 1 times [2020-10-15 02:43:33,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:33,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057271886] [2020-10-15 02:43:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:33,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:33,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:33,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:34,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:38,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:38,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:43:38,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:43:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:43:38,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:38,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:38,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:38,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:38,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:43:38,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:38,765 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:38,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:38,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:38,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:38,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:38,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:38,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:38,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:38,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:38,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:38,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:38,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:38,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:38,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:38,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:38,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:38,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:43:38,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:38,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:38,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:38,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:38,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:43:38,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:38,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:38,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:38,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:38,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:43:38,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:38,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:38,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:38,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:38,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:38,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:38,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:38,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:38,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:38,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:38,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:38,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:39,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:39,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:39,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:39,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:39,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:39,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:43:39,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:39,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:39,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:43:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:39,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:39,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:39,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:43:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:43:39,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:39,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:43:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:43:39,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:39,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:43:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:39,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:39,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:39,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:39,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:39,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:39,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:39,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057271886] [2020-10-15 02:43:39,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:39,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:39,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129498437] [2020-10-15 02:43:39,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:39,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:39,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:39,213 INFO L87 Difference]: Start difference. First operand 1849 states and 2695 transitions. Second operand 9 states. [2020-10-15 02:43:39,417 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:39,628 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-15 02:43:39,885 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-15 02:43:40,230 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-15 02:43:41,080 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:43,789 INFO L93 Difference]: Finished difference Result 6460 states and 9551 transitions. [2020-10-15 02:43:43,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:43:43,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-15 02:43:43,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:43,817 INFO L225 Difference]: With dead ends: 6460 [2020-10-15 02:43:43,817 INFO L226 Difference]: Without dead ends: 4655 [2020-10-15 02:43:43,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:43:43,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2020-10-15 02:43:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4256. [2020-10-15 02:43:44,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4256 states. [2020-10-15 02:43:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 6173 transitions. [2020-10-15 02:43:44,096 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 6173 transitions. Word has length 97 [2020-10-15 02:43:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:44,097 INFO L479 AbstractCegarLoop]: Abstraction has 4256 states and 6173 transitions. [2020-10-15 02:43:44,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 6173 transitions. [2020-10-15 02:43:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:43:44,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:44,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:44,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:43:44,108 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:44,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:44,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2129487381, now seen corresponding path program 1 times [2020-10-15 02:43:44,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:44,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802752134] [2020-10-15 02:43:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:44,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:45,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:48,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:48,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:43:48,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:43:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4735 [2020-10-15 02:43:48,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:48,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:43:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:43:48,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:49,131 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:49,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:49,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:43:49,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:49,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:49,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 02:43:49,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:49,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:43:49,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:49,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:49,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:49,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:49,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:49,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:49,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:49,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:43:49,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:49,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:43:49,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:43:49,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:49,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:43:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:43:49,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:43:49,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:43:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:49,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:49,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:43:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:49,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:49,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:49,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:49,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:49,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:49,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:49,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:49,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802752134] [2020-10-15 02:43:49,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:49,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:49,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954768281] [2020-10-15 02:43:49,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:49,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:49,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:49,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:49,511 INFO L87 Difference]: Start difference. First operand 4256 states and 6173 transitions. Second operand 9 states. [2020-10-15 02:43:49,692 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:51,864 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:43:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:52,153 INFO L93 Difference]: Finished difference Result 9260 states and 13770 transitions. [2020-10-15 02:43:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:43:52,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-15 02:43:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:52,185 INFO L225 Difference]: With dead ends: 9260 [2020-10-15 02:43:52,185 INFO L226 Difference]: Without dead ends: 6600 [2020-10-15 02:43:52,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:43:52,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2020-10-15 02:43:52,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 5952. [2020-10-15 02:43:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5952 states. [2020-10-15 02:43:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5952 states to 5952 states and 8667 transitions. [2020-10-15 02:43:52,570 INFO L78 Accepts]: Start accepts. Automaton has 5952 states and 8667 transitions. Word has length 98 [2020-10-15 02:43:52,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:52,571 INFO L479 AbstractCegarLoop]: Abstraction has 5952 states and 8667 transitions. [2020-10-15 02:43:52,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:52,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5952 states and 8667 transitions. [2020-10-15 02:43:52,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:43:52,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:52,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:52,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:43:52,586 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:52,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:52,586 INFO L82 PathProgramCache]: Analyzing trace with hash 320840081, now seen corresponding path program 1 times [2020-10-15 02:43:52,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:52,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704694221] [2020-10-15 02:43:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:52,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:52,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:52,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:53,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:55,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:57,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:43:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:57,806 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:57,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:57,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:57,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:43:57,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:57,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:57,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:57,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:57,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:57,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:57,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 02:43:57,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:43:57,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 02:43:57,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:57,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:43:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:43:57,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:43:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:43:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:58,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:58,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:58,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:58,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:58,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:43:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:58,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:58,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:58,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:58,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:58,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:43:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:58,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:58,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:43:58,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:58,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:58,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:58,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:43:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:58,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:43:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:58,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:58,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:58,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:43:58,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:58,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:58,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:58,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:43:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:58,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:58,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:43:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:58,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:58,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:58,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:58,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:58,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:43:58,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:58,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:58,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:58,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:58,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704694221] [2020-10-15 02:43:58,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:58,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:43:58,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145157290] [2020-10-15 02:43:58,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:43:58,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:58,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:43:58,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:43:58,218 INFO L87 Difference]: Start difference. First operand 5952 states and 8667 transitions. Second operand 10 states. [2020-10-15 02:43:58,407 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:58,719 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:58,911 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:43:59,128 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:59,412 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-15 02:43:59,605 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:44:03,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:03,792 INFO L93 Difference]: Finished difference Result 20269 states and 29989 transitions. [2020-10-15 02:44:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:44:03,792 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2020-10-15 02:44:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:03,861 INFO L225 Difference]: With dead ends: 20269 [2020-10-15 02:44:03,861 INFO L226 Difference]: Without dead ends: 14198 [2020-10-15 02:44:03,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:44:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14198 states. [2020-10-15 02:44:04,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14198 to 12960. [2020-10-15 02:44:04,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12960 states. [2020-10-15 02:44:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12960 states to 12960 states and 18887 transitions. [2020-10-15 02:44:04,674 INFO L78 Accepts]: Start accepts. Automaton has 12960 states and 18887 transitions. Word has length 100 [2020-10-15 02:44:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:04,675 INFO L479 AbstractCegarLoop]: Abstraction has 12960 states and 18887 transitions. [2020-10-15 02:44:04,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:44:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 12960 states and 18887 transitions. [2020-10-15 02:44:04,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:44:04,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:04,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:44:04,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:44:04,702 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:04,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:04,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1640522659, now seen corresponding path program 1 times [2020-10-15 02:44:04,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:04,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98902950] [2020-10-15 02:44:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:04,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:04,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:09,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:09,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:44:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:09,900 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:09,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:09,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:09,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:09,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:09,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:09,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:44:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:09,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:44:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:09,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:09,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:09,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:09,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:09,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:09,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:44:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:10,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:10,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:10,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:10,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:10,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:44:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:10,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:44:10,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:44:10,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:10,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:44:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:44:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:44:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:10,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:10,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:10,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:10,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:10,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:10,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:44:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:10,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:44:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:10,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:10,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:10,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:10,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:10,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:10,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:10,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:10,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:10,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:10,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:10,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98902950] [2020-10-15 02:44:10,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:10,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:44:10,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175916315] [2020-10-15 02:44:10,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:44:10,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:10,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:44:10,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:44:10,147 INFO L87 Difference]: Start difference. First operand 12960 states and 18887 transitions. Second operand 9 states. [2020-10-15 02:44:10,330 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:10,543 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:44:10,757 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:44:10,934 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:11,505 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:13,852 INFO L93 Difference]: Finished difference Result 25570 states and 37338 transitions. [2020-10-15 02:44:13,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:44:13,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-15 02:44:13,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:13,913 INFO L225 Difference]: With dead ends: 25570 [2020-10-15 02:44:13,914 INFO L226 Difference]: Without dead ends: 12684 [2020-10-15 02:44:13,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:44:13,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12684 states. [2020-10-15 02:44:14,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12684 to 11452. [2020-10-15 02:44:14,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11452 states. [2020-10-15 02:44:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11452 states to 11452 states and 16508 transitions. [2020-10-15 02:44:14,622 INFO L78 Accepts]: Start accepts. Automaton has 11452 states and 16508 transitions. Word has length 101 [2020-10-15 02:44:14,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:14,622 INFO L479 AbstractCegarLoop]: Abstraction has 11452 states and 16508 transitions. [2020-10-15 02:44:14,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:44:14,622 INFO L276 IsEmpty]: Start isEmpty. Operand 11452 states and 16508 transitions. [2020-10-15 02:44:14,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:44:14,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:14,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:44:14,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:44:14,641 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:14,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:14,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1761054071, now seen corresponding path program 1 times [2020-10-15 02:44:14,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:14,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417537463] [2020-10-15 02:44:14,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:15,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:15,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:19,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:19,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:44:19,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:44:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:44:19,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:19,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:44:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:19,834 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:19,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:19,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:19,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:19,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:19,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:19,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:44:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:44:19,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:44:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:19,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:19,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:19,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:19,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:19,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:19,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:19,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:19,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:20,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:44:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:20,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:20,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:20,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:20,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:44:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:20,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:20,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:44:20,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:20,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:20,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:20,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:44:20,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:20,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:44:20,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:20,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:20,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:20,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:44:20,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:20,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:20,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:44:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:20,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:20,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:20,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:20,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:20,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417537463] [2020-10-15 02:44:20,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:20,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:44:20,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789047780] [2020-10-15 02:44:20,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:44:20,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:20,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:44:20,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:44:20,142 INFO L87 Difference]: Start difference. First operand 11452 states and 16508 transitions. Second operand 10 states. [2020-10-15 02:44:20,328 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:20,689 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:20,872 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:21,050 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-15 02:44:21,356 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:44:21,554 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:44:25,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:25,247 INFO L93 Difference]: Finished difference Result 25917 states and 37660 transitions. [2020-10-15 02:44:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:44:25,248 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-15 02:44:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:25,313 INFO L225 Difference]: With dead ends: 25917 [2020-10-15 02:44:25,314 INFO L226 Difference]: Without dead ends: 14522 [2020-10-15 02:44:25,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:44:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14522 states. [2020-10-15 02:44:26,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14522 to 13345. [2020-10-15 02:44:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13345 states. [2020-10-15 02:44:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13345 states to 13345 states and 19098 transitions. [2020-10-15 02:44:26,315 INFO L78 Accepts]: Start accepts. Automaton has 13345 states and 19098 transitions. Word has length 101 [2020-10-15 02:44:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:26,316 INFO L479 AbstractCegarLoop]: Abstraction has 13345 states and 19098 transitions. [2020-10-15 02:44:26,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:44:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 13345 states and 19098 transitions. [2020-10-15 02:44:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 02:44:26,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:26,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:44:26,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:44:26,331 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:26,332 INFO L82 PathProgramCache]: Analyzing trace with hash 487915131, now seen corresponding path program 1 times [2020-10-15 02:44:26,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:26,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702233269] [2020-10-15 02:44:26,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:26,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:27,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-15 02:44:31,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:44:31,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:44:31,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:44:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:44:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 02:44:31,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,535 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:31,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:31,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:44:31,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:44:31,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:44:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:44:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:44:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:31,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:44:31,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:44:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:44:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:31,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:44:31,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:44:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:31,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:44:31,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:44:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:31,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:44:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:31,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:31,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:31,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:31,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:31,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:31,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:31,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:44:31,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:44:31,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:31,870 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 02:44:31,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702233269] [2020-10-15 02:44:31,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:31,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:44:31,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688448190] [2020-10-15 02:44:31,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:44:31,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:31,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:44:31,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:44:31,872 INFO L87 Difference]: Start difference. First operand 13345 states and 19098 transitions. Second operand 13 states. [2020-10-15 02:44:32,059 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:32,478 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:44:32,643 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:34,817 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:34,994 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:44:35,994 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:40,613 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-15 02:44:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:42,108 INFO L93 Difference]: Finished difference Result 66879 states and 98963 transitions. [2020-10-15 02:44:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-15 02:44:42,109 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-15 02:44:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:42,309 INFO L225 Difference]: With dead ends: 66879 [2020-10-15 02:44:42,310 INFO L226 Difference]: Without dead ends: 56321 [2020-10-15 02:44:42,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=630, Invalid=2126, Unknown=0, NotChecked=0, Total=2756 [2020-10-15 02:44:42,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56321 states. [2020-10-15 02:44:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56321 to 50099. [2020-10-15 02:44:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50099 states. [2020-10-15 02:44:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50099 states to 50099 states and 72356 transitions. [2020-10-15 02:44:44,948 INFO L78 Accepts]: Start accepts. Automaton has 50099 states and 72356 transitions. Word has length 102 [2020-10-15 02:44:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:44,949 INFO L479 AbstractCegarLoop]: Abstraction has 50099 states and 72356 transitions. [2020-10-15 02:44:44,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:44:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 50099 states and 72356 transitions. [2020-10-15 02:44:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:44:44,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:44,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:44:44,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:44:44,977 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:44,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:44,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1953346200, now seen corresponding path program 1 times [2020-10-15 02:44:44,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:44,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567521587] [2020-10-15 02:44:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:45,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:45,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:45,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:45,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:49,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:44:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:44:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:44:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,206 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:50,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:50,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:44:50,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:44:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:50,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:50,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:44:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:44:50,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:44:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:44:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:50,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:50,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:44:50,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:44:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:50,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:44:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:44:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:50,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567521587] [2020-10-15 02:44:50,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:50,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:44:50,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957090076] [2020-10-15 02:44:50,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:44:50,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:50,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:44:50,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:44:50,426 INFO L87 Difference]: Start difference. First operand 50099 states and 72356 transitions. Second operand 10 states. [2020-10-15 02:44:50,602 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:51,021 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:44:53,065 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:53,237 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:44:54,987 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-15 02:45:00,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:00,486 INFO L93 Difference]: Finished difference Result 155964 states and 224408 transitions. [2020-10-15 02:45:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:45:00,486 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-10-15 02:45:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:00,778 INFO L225 Difference]: With dead ends: 155964 [2020-10-15 02:45:00,778 INFO L226 Difference]: Without dead ends: 108941 [2020-10-15 02:45:00,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:45:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108941 states. [2020-10-15 02:45:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108941 to 98371. [2020-10-15 02:45:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98371 states. [2020-10-15 02:45:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98371 states to 98371 states and 140483 transitions. [2020-10-15 02:45:05,061 INFO L78 Accepts]: Start accepts. Automaton has 98371 states and 140483 transitions. Word has length 103 [2020-10-15 02:45:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:05,061 INFO L479 AbstractCegarLoop]: Abstraction has 98371 states and 140483 transitions. [2020-10-15 02:45:05,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:45:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 98371 states and 140483 transitions. [2020-10-15 02:45:05,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:45:05,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:05,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:45:05,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:45:05,089 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:05,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:05,089 INFO L82 PathProgramCache]: Analyzing trace with hash -141708687, now seen corresponding path program 1 times [2020-10-15 02:45:05,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:05,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102994507] [2020-10-15 02:45:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:06,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:07,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:07,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:07,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:45:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:45:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6477 [2020-10-15 02:45:11,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:45:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 02:45:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,756 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:45:11,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:45:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:45:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:11,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:45:11,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:11,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:45:11,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:11,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:45:11,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:45:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:45:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:45:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:45:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-15 02:45:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:11,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:11,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:11,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:11,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:11,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:11,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:11,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:11,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:11,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:11,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102994507] [2020-10-15 02:45:11,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:11,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:45:11,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451116317] [2020-10-15 02:45:11,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:45:11,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:11,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:45:11,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:45:11,996 INFO L87 Difference]: Start difference. First operand 98371 states and 140483 transitions. Second operand 9 states. [2020-10-15 02:45:12,183 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:45:12,351 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:45:12,537 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:45:12,711 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:45:13,371 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:45:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:20,977 INFO L93 Difference]: Finished difference Result 268054 states and 387602 transitions. [2020-10-15 02:45:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:45:20,979 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-15 02:45:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:21,426 INFO L225 Difference]: With dead ends: 268054 [2020-10-15 02:45:21,426 INFO L226 Difference]: Without dead ends: 169704 [2020-10-15 02:45:21,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:45:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169704 states. [2020-10-15 02:45:30,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169704 to 155029. [2020-10-15 02:45:30,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155029 states. [2020-10-15 02:45:30,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155029 states to 155029 states and 217400 transitions. [2020-10-15 02:45:30,554 INFO L78 Accepts]: Start accepts. Automaton has 155029 states and 217400 transitions. Word has length 103 [2020-10-15 02:45:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:30,554 INFO L479 AbstractCegarLoop]: Abstraction has 155029 states and 217400 transitions. [2020-10-15 02:45:30,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:45:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 155029 states and 217400 transitions. [2020-10-15 02:45:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:45:30,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:30,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:45:30,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:45:30,580 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:30,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:30,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1091507016, now seen corresponding path program 1 times [2020-10-15 02:45:30,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:30,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806404499] [2020-10-15 02:45:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:30,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:31,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:31,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:31,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:45:35,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:45:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:45:35,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:45:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:45:35,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,772 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:45:35,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:45:35,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:45:35,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:35,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:45:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:45:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:35,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:35,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:35,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:35,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:45:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:45:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:45:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:45:35,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:35,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:45:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:35,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-15 02:45:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:36,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:36,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806404499] [2020-10-15 02:45:36,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:36,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:45:36,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713739316] [2020-10-15 02:45:36,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:45:36,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:36,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:45:36,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:45:36,020 INFO L87 Difference]: Start difference. First operand 155029 states and 217400 transitions. Second operand 9 states. [2020-10-15 02:45:36,207 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:45:36,415 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:45:36,620 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:45:37,276 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:45:45,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:45,841 INFO L93 Difference]: Finished difference Result 239568 states and 334383 transitions. [2020-10-15 02:45:45,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:45:45,842 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-15 02:45:45,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:46,330 INFO L225 Difference]: With dead ends: 239568 [2020-10-15 02:45:46,330 INFO L226 Difference]: Without dead ends: 187036 [2020-10-15 02:45:46,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:45:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187036 states. [2020-10-15 02:45:57,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187036 to 170821. [2020-10-15 02:45:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170821 states. [2020-10-15 02:45:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170821 states to 170821 states and 239348 transitions. [2020-10-15 02:45:58,163 INFO L78 Accepts]: Start accepts. Automaton has 170821 states and 239348 transitions. Word has length 103 [2020-10-15 02:45:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:58,164 INFO L479 AbstractCegarLoop]: Abstraction has 170821 states and 239348 transitions. [2020-10-15 02:45:58,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:45:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 170821 states and 239348 transitions. [2020-10-15 02:45:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:45:58,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:58,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:45:58,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:45:58,204 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:58,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:58,204 INFO L82 PathProgramCache]: Analyzing trace with hash -374721070, now seen corresponding path program 1 times [2020-10-15 02:45:58,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:58,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45659302] [2020-10-15 02:45:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:00,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 02:46:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:46:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,405 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:46:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:46:03,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:46:03,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:46:03,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:46:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:03,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:03,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:46:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:03,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:46:03,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:03,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:46:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:46:03,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:46:03,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:46:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:46:03,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:46:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:46:03,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:03,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:46:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:46:03,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:03,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45659302] [2020-10-15 02:46:03,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:03,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:03,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350760905] [2020-10-15 02:46:03,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:03,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:03,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:03,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:03,636 INFO L87 Difference]: Start difference. First operand 170821 states and 239348 transitions. Second operand 10 states. [2020-10-15 02:46:03,818 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:46:04,240 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:46:06,264 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:46:06,436 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:46:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:22,123 INFO L93 Difference]: Finished difference Result 552398 states and 770098 transitions. [2020-10-15 02:46:22,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:46:22,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-15 02:46:22,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:23,101 INFO L225 Difference]: With dead ends: 552398 [2020-10-15 02:46:23,101 INFO L226 Difference]: Without dead ends: 386728 [2020-10-15 02:46:23,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:46:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386728 states.