/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:14:16,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:14:16,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:14:16,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:14:16,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:14:16,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:14:16,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:14:16,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:14:16,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:14:16,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:14:16,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:14:16,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:14:16,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:14:16,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:14:16,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:14:16,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:14:16,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:14:16,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:14:16,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:14:16,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:14:16,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:14:16,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:14:16,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:14:16,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:14:16,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:14:16,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:14:16,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:14:16,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:14:16,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:14:16,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:14:16,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:14:16,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:14:16,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:14:16,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:14:16,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:14:16,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:14:16,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:14:16,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:14:16,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:14:16,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:14:16,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:14:16,226 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 [2020-10-13 13:14:16,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:14:16,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:14:16,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:14:16,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:14:16,252 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:14:16,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:14:16,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:14:16,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:14:16,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:14:16,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:14:16,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:14:16,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:14:16,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:14:16,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:14:16,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:14:16,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:14:16,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:14:16,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:14:16,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:14:16,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:14:16,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:14:16,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:14:16,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:14:16,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:14:16,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:14:16,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:14:16,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:14:16,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:14:16,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:14:16,257 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:14:16,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:14:16,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:14:16,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:14:16,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:14:16,607 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:14:16,608 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-10-13 13:14:16,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f449830e0/7ae83b450ad8413081509bbed74ce1ad/FLAG456dd23fd [2020-10-13 13:14:17,225 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:14:17,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-10-13 13:14:17,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f449830e0/7ae83b450ad8413081509bbed74ce1ad/FLAG456dd23fd [2020-10-13 13:14:17,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f449830e0/7ae83b450ad8413081509bbed74ce1ad [2020-10-13 13:14:17,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:14:17,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:14:17,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:14:17,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:14:17,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:14:17,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:14:17" (1/1) ... [2020-10-13 13:14:17,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbadd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:17, skipping insertion in model container [2020-10-13 13:14:17,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:14:17" (1/1) ... [2020-10-13 13:14:17,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:14:17,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:14:17,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:14:17,940 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:14:18,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:14:18,157 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:14:18,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18 WrapperNode [2020-10-13 13:14:18,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:14:18,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:14:18,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:14:18,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:14:18,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (1/1) ... [2020-10-13 13:14:18,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:14:18,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:14:18,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:14:18,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:14:18,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (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 [2020-10-13 13:14:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:14:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:14:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:14:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:14:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:14:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:14:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:14:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:14:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:14:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:14:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:14:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:14:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:14:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:14:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:14:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:14:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:14:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:14:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:14:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:14:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:14:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:14:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:14:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:14:19,110 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:14:19,111 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:14:19,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:14:19 BoogieIcfgContainer [2020-10-13 13:14:19,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:14:19,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:14:19,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:14:19,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:14:19,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:14:17" (1/3) ... [2020-10-13 13:14:19,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fa9c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:14:19, skipping insertion in model container [2020-10-13 13:14:19,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:18" (2/3) ... [2020-10-13 13:14:19,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fa9c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:14:19, skipping insertion in model container [2020-10-13 13:14:19,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:14:19" (3/3) ... [2020-10-13 13:14:19,126 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-10-13 13:14:19,138 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:14:19,146 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:14:19,161 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:14:19,188 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:14:19,188 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:14:19,188 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:14:19,188 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:14:19,189 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:14:19,189 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:14:19,189 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:14:19,189 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:14:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-13 13:14:19,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 13:14:19,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:14:19,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:14:19,225 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:14:19,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:14:19,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1364421405, now seen corresponding path program 1 times [2020-10-13 13:14:19,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:14:19,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948932408] [2020-10-13 13:14:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:14:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:19,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 13:14:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:19,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-13 13:14:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 13:14:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:14:20,299 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:14:20,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:14:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:20,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:20,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:20,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:14:20,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:14:20,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:20,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:20,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:20,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:14:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:20,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:20,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:20,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:14:20,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:14:20,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:20,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:20,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 13:14:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:20,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:20,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:14:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:20,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:14:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:20,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:20,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:20,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:20,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:14:20,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:20,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 13:14:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:20,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:14:20,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:14:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:20,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:20,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:20,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:20,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:14:20,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:20,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:20,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:20,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:14:20,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948932408] [2020-10-13 13:14:20,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:14:20,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 13:14:20,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523918834] [2020-10-13 13:14:20,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 13:14:20,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:14:20,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 13:14:20,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:14:20,591 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 6 states. [2020-10-13 13:14:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:14:21,681 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2020-10-13 13:14:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 13:14:21,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-13 13:14:21,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:14:21,697 INFO L225 Difference]: With dead ends: 258 [2020-10-13 13:14:21,698 INFO L226 Difference]: Without dead ends: 162 [2020-10-13 13:14:21,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:14:21,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-13 13:14:21,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-10-13 13:14:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-13 13:14:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 243 transitions. [2020-10-13 13:14:21,781 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 243 transitions. Word has length 58 [2020-10-13 13:14:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:14:21,782 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 243 transitions. [2020-10-13 13:14:21,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 13:14:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2020-10-13 13:14:21,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 13:14:21,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:14:21,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:14:21,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:14:21,790 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:14:21,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:14:21,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1292034847, now seen corresponding path program 1 times [2020-10-13 13:14:21,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:14:21,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874941122] [2020-10-13 13:14:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:14:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:21,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 13:14:22,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-10-13 13:14:22,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:14:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:14:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:14:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,659 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:14:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:14:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:22,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:14:22,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:14:22,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:22,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:22,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:22,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:14:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:22,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:14:22,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:14:22,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:14:22,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 13:14:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:22,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:22,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:14:22,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:22,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:22,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:14:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:22,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:14:22,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:22,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 13:14:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:22,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:14:22,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 13:14:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:22,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:22,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:22,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:14:22,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:14:22,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874941122] [2020-10-13 13:14:22,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:14:22,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:14:22,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231058675] [2020-10-13 13:14:22,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:14:22,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:14:22,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:14:22,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:14:22,932 INFO L87 Difference]: Start difference. First operand 150 states and 243 transitions. Second operand 10 states. [2020-10-13 13:14:23,434 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:14:23,604 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:14:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:14:24,809 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2020-10-13 13:14:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 13:14:24,810 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-13 13:14:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:14:24,815 INFO L225 Difference]: With dead ends: 262 [2020-10-13 13:14:24,815 INFO L226 Difference]: Without dead ends: 171 [2020-10-13 13:14:24,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:14:24,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-13 13:14:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2020-10-13 13:14:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-13 13:14:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-10-13 13:14:24,842 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 58 [2020-10-13 13:14:24,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:14:24,843 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-10-13 13:14:24,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:14:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2020-10-13 13:14:24,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 13:14:24,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:14:24,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:14:24,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:14:24,847 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:14:24,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:14:24,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1402954698, now seen corresponding path program 1 times [2020-10-13 13:14:24,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:14:24,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071629175] [2020-10-13 13:14:24,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:14:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:24,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:24,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:25,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:26,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:29,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 13:14:29,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:14:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:14:29,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 13:14:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 13:14:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:14:30,078 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:14:30,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:14:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:30,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:30,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:14:30,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:14:30,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:14:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:30,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:30,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:30,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:14:30,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:30,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 13:14:30,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:14:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:14:30,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:30,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:14:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:30,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:30,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:30,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:30,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:30,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:14:30,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:30,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:30,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:30,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:14:30,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:30,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 13:14:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:30,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:30,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:30,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:14:30,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:14:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:30,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:30,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:30,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:30,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:30,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:14:30,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:30,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:14:30,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:14:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:30,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:30,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:30,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:30,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:14:30,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:30,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:30,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:30,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:30,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:14:30,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071629175] [2020-10-13 13:14:30,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:14:30,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:14:30,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028053627] [2020-10-13 13:14:30,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:14:30,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:14:30,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:14:30,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:14:30,392 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand 9 states. [2020-10-13 13:14:30,553 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:14:31,956 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:14:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:14:32,356 INFO L93 Difference]: Finished difference Result 346 states and 519 transitions. [2020-10-13 13:14:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:14:32,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-13 13:14:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:14:32,363 INFO L225 Difference]: With dead ends: 346 [2020-10-13 13:14:32,363 INFO L226 Difference]: Without dead ends: 261 [2020-10-13 13:14:32,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:14:32,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-13 13:14:32,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 229. [2020-10-13 13:14:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-13 13:14:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 332 transitions. [2020-10-13 13:14:32,396 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 332 transitions. Word has length 84 [2020-10-13 13:14:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:14:32,397 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 332 transitions. [2020-10-13 13:14:32,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:14:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 332 transitions. [2020-10-13 13:14:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 13:14:32,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:14:32,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:14:32,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:14:32,402 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:14:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:14:32,402 INFO L82 PathProgramCache]: Analyzing trace with hash 350295045, now seen corresponding path program 1 times [2020-10-13 13:14:32,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:14:32,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808381256] [2020-10-13 13:14:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:14:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:32,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:32,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:32,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:32,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:33,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 13:14:37,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:14:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 13:14:37,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 13:14:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 13:14:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:37,621 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:14:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:14:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:37,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:14:37,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:14:37,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:37,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:14:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:37,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:14:37,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:37,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:14:37,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:14:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:14:37,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:14:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:37,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:14:37,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:14:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:14:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:14:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:37,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:14:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:37,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:14:37,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:14:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:37,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:14:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:14:37,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:37,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:37,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:14:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:37,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:37,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:37,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:37,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:37,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:14:37,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:14:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:14:37,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808381256] [2020-10-13 13:14:37,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:14:37,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:14:37,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262358161] [2020-10-13 13:14:37,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:14:37,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:14:37,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:14:37,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:14:37,843 INFO L87 Difference]: Start difference. First operand 229 states and 332 transitions. Second operand 9 states. [2020-10-13 13:14:38,025 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:14:39,631 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:14:39,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:14:39,782 INFO L93 Difference]: Finished difference Result 601 states and 890 transitions. [2020-10-13 13:14:39,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:14:39,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-13 13:14:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:14:39,786 INFO L225 Difference]: With dead ends: 601 [2020-10-13 13:14:39,786 INFO L226 Difference]: Without dead ends: 437 [2020-10-13 13:14:39,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:14:39,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-13 13:14:39,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 381. [2020-10-13 13:14:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-13 13:14:39,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 558 transitions. [2020-10-13 13:14:39,840 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 558 transitions. Word has length 86 [2020-10-13 13:14:39,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:14:39,840 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 558 transitions. [2020-10-13 13:14:39,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:14:39,841 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 558 transitions. [2020-10-13 13:14:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 13:14:39,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:14:39,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:14:39,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:14:39,843 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:14:39,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:14:39,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1045085748, now seen corresponding path program 1 times [2020-10-13 13:14:39,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:14:39,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971634413] [2020-10-13 13:14:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:14:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:39,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:39,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:40,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:40,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:41,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:44,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:44,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 13:14:44,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:14:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:14:44,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:14:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 13:14:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:14:44,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,070 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:14:45,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:14:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:45,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:45,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:14:45,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:45,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:14:45,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:14:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:45,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:45,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:45,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:14:45,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:45,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:14:45,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 13:14:45,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:14:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:45,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:14:45,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:14:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:45,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:45,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:45,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:14:45,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:14:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:45,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:45,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:14:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:14:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:45,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:45,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:45,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:45,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:14:45,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:14:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:14:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:14:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:14:45,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971634413] [2020-10-13 13:14:45,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:14:45,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:14:45,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912845509] [2020-10-13 13:14:45,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:14:45,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:14:45,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:14:45,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:14:45,400 INFO L87 Difference]: Start difference. First operand 381 states and 558 transitions. Second operand 13 states. [2020-10-13 13:14:45,592 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:14:46,013 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:14:46,168 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:14:47,956 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:14:48,102 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:14:48,307 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:14:51,261 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-13 13:14:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:14:52,362 INFO L93 Difference]: Finished difference Result 2259 states and 3462 transitions. [2020-10-13 13:14:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-13 13:14:52,362 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 88 [2020-10-13 13:14:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:14:52,388 INFO L225 Difference]: With dead ends: 2259 [2020-10-13 13:14:52,389 INFO L226 Difference]: Without dead ends: 1943 [2020-10-13 13:14:52,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=630, Invalid=2126, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 13:14:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2020-10-13 13:14:52,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1603. [2020-10-13 13:14:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1603 states. [2020-10-13 13:14:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2413 transitions. [2020-10-13 13:14:52,581 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2413 transitions. Word has length 88 [2020-10-13 13:14:52,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:14:52,582 INFO L479 AbstractCegarLoop]: Abstraction has 1603 states and 2413 transitions. [2020-10-13 13:14:52,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:14:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2413 transitions. [2020-10-13 13:14:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 13:14:52,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:14:52,592 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] [2020-10-13 13:14:52,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:14:52,592 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:14:52,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:14:52,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1638095605, now seen corresponding path program 1 times [2020-10-13 13:14:52,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:14:52,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645078318] [2020-10-13 13:14:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:14:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:52,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:52,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:52,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:52,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:53,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:57,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 13:14:57,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:14:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 13:14:57,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:14:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 13:14:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:14:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:57,808 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:14:57,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:14:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:57,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:57,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:57,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:14:57,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:14:57,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:57,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:14:57,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:57,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:14:57,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:14:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:14:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:57,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:57,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:57,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:14:57,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:57,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:14:57,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:57,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:14:57,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 13:14:57,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:14:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:57,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:57,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:14:57,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:14:57,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:14:57,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:58,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:14:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:58,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:58,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:58,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:14:58,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:58,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:14:58,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:14:58,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:58,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:14:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:58,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:58,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:58,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:14:58,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:14:58,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:14:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:14:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:14:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:58,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:14:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:14:58,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:14:58,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:14:58,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:14:58,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:14:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:14:58,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:14:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:14:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:14:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:14:58,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:14:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:14:58,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645078318] [2020-10-13 13:14:58,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:14:58,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:14:58,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858228902] [2020-10-13 13:14:58,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:14:58,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:14:58,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:14:58,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:14:58,217 INFO L87 Difference]: Start difference. First operand 1603 states and 2413 transitions. Second operand 14 states. [2020-10-13 13:14:58,425 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 13:14:58,929 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:14:59,103 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:14:59,269 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:15:01,008 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:15:01,186 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:15:01,368 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:15:01,564 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 13:15:02,864 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-13 13:15:04,025 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-13 13:15:05,012 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:15:05,290 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:15:08,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:15:08,549 INFO L93 Difference]: Finished difference Result 7102 states and 11048 transitions. [2020-10-13 13:15:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-13 13:15:08,550 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2020-10-13 13:15:08,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:15:08,585 INFO L225 Difference]: With dead ends: 7102 [2020-10-13 13:15:08,585 INFO L226 Difference]: Without dead ends: 5564 [2020-10-13 13:15:08,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2027 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1202, Invalid=4804, Unknown=0, NotChecked=0, Total=6006 [2020-10-13 13:15:08,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2020-10-13 13:15:08,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 4145. [2020-10-13 13:15:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4145 states. [2020-10-13 13:15:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6376 transitions. [2020-10-13 13:15:08,902 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6376 transitions. Word has length 89 [2020-10-13 13:15:08,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:15:08,902 INFO L479 AbstractCegarLoop]: Abstraction has 4145 states and 6376 transitions. [2020-10-13 13:15:08,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:15:08,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6376 transitions. [2020-10-13 13:15:08,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 13:15:08,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:15:08,906 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] [2020-10-13 13:15:08,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:15:08,907 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:15:08,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:15:08,907 INFO L82 PathProgramCache]: Analyzing trace with hash 75152046, now seen corresponding path program 1 times [2020-10-13 13:15:08,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:15:08,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007872548] [2020-10-13 13:15:08,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:15:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:09,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:09,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:09,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:12,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:13,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:13,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 13:15:13,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:15:13,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:15:13,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:13,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:15:13,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 13:15:13,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:15:13,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:14,153 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:15:14,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:15:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:14,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:14,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:14,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:15:14,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:15:14,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:14,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:15:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:14,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:14,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:14,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:15:14,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:15:14,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 13:15:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:15:14,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:15:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:14,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:14,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:14,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:14,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:15:14,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:14,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:14,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:15:14,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:14,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:15:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:14,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:14,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:15:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:15:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:15:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:15:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:15:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:15:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:15:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:15:14,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:15:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:15:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:14,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:14,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:14,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:14,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:15:14,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:14,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:14,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:14,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:15:14,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007872548] [2020-10-13 13:15:14,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:15:14,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:15:14,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818874914] [2020-10-13 13:15:14,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:15:14,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:15:14,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:15:14,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:15:14,439 INFO L87 Difference]: Start difference. First operand 4145 states and 6376 transitions. Second operand 8 states. [2020-10-13 13:15:14,605 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:15:16,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:15:16,779 INFO L93 Difference]: Finished difference Result 9616 states and 14824 transitions. [2020-10-13 13:15:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:15:16,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 13:15:16,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:15:16,819 INFO L225 Difference]: With dead ends: 9616 [2020-10-13 13:15:16,820 INFO L226 Difference]: Without dead ends: 6978 [2020-10-13 13:15:16,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:15:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2020-10-13 13:15:17,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 6096. [2020-10-13 13:15:17,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6096 states. [2020-10-13 13:15:17,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6096 states to 6096 states and 9310 transitions. [2020-10-13 13:15:17,304 INFO L78 Accepts]: Start accepts. Automaton has 6096 states and 9310 transitions. Word has length 89 [2020-10-13 13:15:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:15:17,305 INFO L479 AbstractCegarLoop]: Abstraction has 6096 states and 9310 transitions. [2020-10-13 13:15:17,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:15:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6096 states and 9310 transitions. [2020-10-13 13:15:17,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 13:15:17,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:15:17,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:15:17,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:15:17,310 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:15:17,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:15:17,311 INFO L82 PathProgramCache]: Analyzing trace with hash 501964949, now seen corresponding path program 1 times [2020-10-13 13:15:17,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:15:17,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098017250] [2020-10-13 13:15:17,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:15:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:17,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:17,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:17,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:17,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:18,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 13:15:22,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:15:22,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:15:22,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:15:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:15:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:15:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:22,600 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:15:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:15:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:22,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:15:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:15:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:22,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:15:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:22,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:15:22,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:22,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 13:15:22,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:15:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:22,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:15:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:15:22,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:22,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:15:22,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:15:22,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:15:22,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:15:22,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:22,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:15:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:22,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:22,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:15:22,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:15:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:15:22,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:15:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:22,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:22,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:15:22,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:22,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:15:22,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:15:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:22,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:22,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:22,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:15:22,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:22,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:15:22,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098017250] [2020-10-13 13:15:22,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:15:22,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:15:22,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717863312] [2020-10-13 13:15:22,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:15:22,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:15:22,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:15:22,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:15:22,871 INFO L87 Difference]: Start difference. First operand 6096 states and 9310 transitions. Second operand 8 states. [2020-10-13 13:15:23,039 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:15:25,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:15:25,524 INFO L93 Difference]: Finished difference Result 15380 states and 23619 transitions. [2020-10-13 13:15:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:15:25,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 13:15:25,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:15:25,584 INFO L225 Difference]: With dead ends: 15380 [2020-10-13 13:15:25,584 INFO L226 Difference]: Without dead ends: 10628 [2020-10-13 13:15:25,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:15:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10628 states. [2020-10-13 13:15:26,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10628 to 9382. [2020-10-13 13:15:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9382 states. [2020-10-13 13:15:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9382 states to 9382 states and 14225 transitions. [2020-10-13 13:15:26,499 INFO L78 Accepts]: Start accepts. Automaton has 9382 states and 14225 transitions. Word has length 89 [2020-10-13 13:15:26,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:15:26,500 INFO L479 AbstractCegarLoop]: Abstraction has 9382 states and 14225 transitions. [2020-10-13 13:15:26,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:15:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 9382 states and 14225 transitions. [2020-10-13 13:15:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 13:15:26,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:15:26,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:15:26,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:15:26,502 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:15:26,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:15:26,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1505120245, now seen corresponding path program 1 times [2020-10-13 13:15:26,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:15:26,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119820671] [2020-10-13 13:15:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:15:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:26,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:26,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:26,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:26,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:29,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:15:31,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,754 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:15:31,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:15:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:31,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:15:31,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:15:31,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:15:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:31,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:15:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:15:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:31,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:15:31,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:31,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:15:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:15:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:15:31,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:15:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:31,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:31,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:15:31,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:15:31,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:15:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:31,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:31,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:31,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:31,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:15:31,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:15:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:15:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:15:31,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119820671] [2020-10-13 13:15:31,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:15:31,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:15:31,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345231961] [2020-10-13 13:15:31,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:15:31,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:15:31,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:15:31,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:15:31,963 INFO L87 Difference]: Start difference. First operand 9382 states and 14225 transitions. Second operand 10 states. [2020-10-13 13:15:32,120 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:15:32,534 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:15:33,839 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:15:33,993 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:15:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:15:37,056 INFO L93 Difference]: Finished difference Result 35030 states and 53354 transitions. [2020-10-13 13:15:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:15:37,056 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-10-13 13:15:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:15:37,171 INFO L225 Difference]: With dead ends: 35030 [2020-10-13 13:15:37,172 INFO L226 Difference]: Without dead ends: 25738 [2020-10-13 13:15:37,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:15:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25738 states. [2020-10-13 13:15:39,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25738 to 22678. [2020-10-13 13:15:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22678 states. [2020-10-13 13:15:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22678 states to 22678 states and 34279 transitions. [2020-10-13 13:15:39,595 INFO L78 Accepts]: Start accepts. Automaton has 22678 states and 34279 transitions. Word has length 90 [2020-10-13 13:15:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:15:39,596 INFO L479 AbstractCegarLoop]: Abstraction has 22678 states and 34279 transitions. [2020-10-13 13:15:39,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:15:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 22678 states and 34279 transitions. [2020-10-13 13:15:39,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 13:15:39,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:15:39,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:15:39,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:15:39,597 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:15:39,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:15:39,598 INFO L82 PathProgramCache]: Analyzing trace with hash -212248724, now seen corresponding path program 1 times [2020-10-13 13:15:39,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:15:39,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34799934] [2020-10-13 13:15:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:15:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:39,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:39,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:39,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:40,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:15:44,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,787 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:15:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:15:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:15:44,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:15:44,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:44,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:15:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:44,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:15:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 13:15:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:15:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:44,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:44,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:15:44,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:15:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:15:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:44,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:15:44,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:15:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:44,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:15:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:15:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:44,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:44,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:44,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:15:44,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:44,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:15:44,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:15:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:15:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:15:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:15:44,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34799934] [2020-10-13 13:15:44,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:15:44,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:15:44,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742052648] [2020-10-13 13:15:44,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:15:44,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:15:44,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:15:44,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:15:44,990 INFO L87 Difference]: Start difference. First operand 22678 states and 34279 transitions. Second operand 10 states. [2020-10-13 13:15:45,172 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:15:45,614 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:15:46,520 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:15:46,692 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:15:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:15:52,195 INFO L93 Difference]: Finished difference Result 115211 states and 174710 transitions. [2020-10-13 13:15:52,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:15:52,195 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-10-13 13:15:52,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:15:52,550 INFO L225 Difference]: With dead ends: 115211 [2020-10-13 13:15:52,550 INFO L226 Difference]: Without dead ends: 92623 [2020-10-13 13:15:52,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 13:15:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92623 states. [2020-10-13 13:15:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92623 to 81155. [2020-10-13 13:15:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81155 states. [2020-10-13 13:15:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81155 states to 81155 states and 122337 transitions. [2020-10-13 13:15:58,176 INFO L78 Accepts]: Start accepts. Automaton has 81155 states and 122337 transitions. Word has length 91 [2020-10-13 13:15:58,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:15:58,177 INFO L479 AbstractCegarLoop]: Abstraction has 81155 states and 122337 transitions. [2020-10-13 13:15:58,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:15:58,177 INFO L276 IsEmpty]: Start isEmpty. Operand 81155 states and 122337 transitions. [2020-10-13 13:15:58,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 13:15:58,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:15:58,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:15:58,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:15:58,178 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:15:58,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:15:58,178 INFO L82 PathProgramCache]: Analyzing trace with hash 2424660, now seen corresponding path program 1 times [2020-10-13 13:15:58,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:15:58,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683845486] [2020-10-13 13:15:58,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:15:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:16:03,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:16:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:16:03,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 13:16:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 13:16:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,369 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:16:03,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:03,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:03,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:16:03,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:16:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:16:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:16:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:03,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:03,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:16:03,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:16:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:16:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:16:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:16:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:16:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:16:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:03,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:03,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:03,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:03,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:03,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683845486] [2020-10-13 13:16:03,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:03,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:16:03,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351502473] [2020-10-13 13:16:03,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:16:03,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:03,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:16:03,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:16:03,557 INFO L87 Difference]: Start difference. First operand 81155 states and 122337 transitions. Second operand 8 states. [2020-10-13 13:16:03,731 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:16:13,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:13,673 INFO L93 Difference]: Finished difference Result 237241 states and 357503 transitions. [2020-10-13 13:16:13,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:16:13,674 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2020-10-13 13:16:13,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:14,340 INFO L225 Difference]: With dead ends: 237241 [2020-10-13 13:16:14,340 INFO L226 Difference]: Without dead ends: 156176 [2020-10-13 13:16:14,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:16:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156176 states. [2020-10-13 13:16:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156176 to 139806. [2020-10-13 13:16:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139806 states. [2020-10-13 13:16:24,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139806 states to 139806 states and 205329 transitions. [2020-10-13 13:16:24,915 INFO L78 Accepts]: Start accepts. Automaton has 139806 states and 205329 transitions. Word has length 91 [2020-10-13 13:16:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:24,916 INFO L479 AbstractCegarLoop]: Abstraction has 139806 states and 205329 transitions. [2020-10-13 13:16:24,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:16:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 139806 states and 205329 transitions. [2020-10-13 13:16:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 13:16:24,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:24,916 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] [2020-10-13 13:16:24,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:16:24,917 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:24,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:24,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1399561234, now seen corresponding path program 1 times [2020-10-13 13:16:24,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:24,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938512397] [2020-10-13 13:16:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:24,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:24,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:25,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:29,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:29,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:16:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,101 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:16:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:30,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:30,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:30,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:30,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:30,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:30,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:30,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:30,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:30,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:30,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:30,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:30,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:30,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:16:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:16:30,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:16:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:16:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:30,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:30,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:30,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:30,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:30,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:16:30,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:16:30,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:16:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:30,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:30,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:30,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:16:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:16:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:30,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:30,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:30,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:30,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:30,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:30,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:16:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:30,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:16:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:30,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:30,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:30,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:16:30,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:30,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:30,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:16:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:30,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:30,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938512397] [2020-10-13 13:16:30,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:30,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:16:30,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998974478] [2020-10-13 13:16:30,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:16:30,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:30,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:16:30,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:16:30,321 INFO L87 Difference]: Start difference. First operand 139806 states and 205329 transitions. Second operand 9 states. [2020-10-13 13:16:30,496 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:16:32,475 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:16:32,757 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-13 13:16:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:38,950 INFO L93 Difference]: Finished difference Result 312371 states and 459417 transitions. [2020-10-13 13:16:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:16:38,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-13 13:16:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:39,724 INFO L225 Difference]: With dead ends: 312371 [2020-10-13 13:16:39,725 INFO L226 Difference]: Without dead ends: 172655 [2020-10-13 13:16:39,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:16:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172655 states. [2020-10-13 13:16:53,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172655 to 150595. [2020-10-13 13:16:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150595 states. [2020-10-13 13:16:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150595 states to 150595 states and 221378 transitions. [2020-10-13 13:16:53,695 INFO L78 Accepts]: Start accepts. Automaton has 150595 states and 221378 transitions. Word has length 96 [2020-10-13 13:16:53,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:53,696 INFO L479 AbstractCegarLoop]: Abstraction has 150595 states and 221378 transitions. [2020-10-13 13:16:53,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:16:53,696 INFO L276 IsEmpty]: Start isEmpty. Operand 150595 states and 221378 transitions. [2020-10-13 13:16:53,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-13 13:16:53,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:53,697 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] [2020-10-13 13:16:53,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:16:53,697 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:53,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:53,697 INFO L82 PathProgramCache]: Analyzing trace with hash -195088067, now seen corresponding path program 1 times [2020-10-13 13:16:53,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:53,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960253297] [2020-10-13 13:16:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:53,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:53,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:53,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:53,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:53,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:58,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:58,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 13:16:58,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:16:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-13 13:16:58,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:16:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:16:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:16:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,006 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:16:59,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:59,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:59,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:59,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:59,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:59,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:59,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:59,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:59,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:59,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:59,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 13:16:59,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:16:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:16:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:16:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 13:16:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:59,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:59,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:59,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:59,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:59,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:16:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:16:59,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:16:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:59,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:16:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 13:16:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:16:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 13:16:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:59,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:59,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:59,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960253297] [2020-10-13 13:16:59,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:59,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:16:59,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618583318] [2020-10-13 13:16:59,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:16:59,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:59,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:16:59,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:16:59,208 INFO L87 Difference]: Start difference. First operand 150595 states and 221378 transitions. Second operand 9 states. [2020-10-13 13:16:59,385 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:16:59,549 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:16:59,728 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 13:16:59,899 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:17:00,563 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:17:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:20,836 INFO L93 Difference]: Finished difference Result 475113 states and 711590 transitions. [2020-10-13 13:17:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:17:20,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-13 13:17:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:21,933 INFO L225 Difference]: With dead ends: 475113 [2020-10-13 13:17:21,934 INFO L226 Difference]: Without dead ends: 324532 [2020-10-13 13:17:22,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:17:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324532 states.