/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_opt-floodmax.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:40:35,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:40:35,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:40:35,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:40:35,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:40:35,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:40:35,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:40:35,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:40:35,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:40:35,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:40:35,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:40:35,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:40:35,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:40:35,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:40:35,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:40:35,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:40:35,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:40:35,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:40:35,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:40:35,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:40:35,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:40:35,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:40:35,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:40:35,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:40:35,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:40:35,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:40:35,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:40:35,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:40:35,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:40:35,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:40:35,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:40:35,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:40:35,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:40:35,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:40:35,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:40:35,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:40:35,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:40:35,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:40:35,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:40:35,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:40:35,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:40:35,311 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 13:40:35,350 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:40:35,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:40:35,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:40:35,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:40:35,353 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:40:35,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:40:35,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:40:35,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:40:35,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:40:35,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:40:35,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:40:35,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:40:35,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:40:35,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:40:35,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:40:35,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:40:35,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:40:35,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:40:35,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:40:35,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:40:35,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:40:35,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:40:35,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:40:35,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:40:35,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:40:35,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:40:35,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:40:35,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:40:35,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:40:35,358 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 13:40:35,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:40:35,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:40:35,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:40:35,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:40:35,675 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:40:35,675 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-13 13:40:35,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010a80d83/2e2b143c8241477dbee81767b9b9570a/FLAG8c9bb1db0 [2020-10-13 13:40:36,246 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:40:36,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-13 13:40:36,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010a80d83/2e2b143c8241477dbee81767b9b9570a/FLAG8c9bb1db0 [2020-10-13 13:40:36,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/010a80d83/2e2b143c8241477dbee81767b9b9570a [2020-10-13 13:40:36,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:40:36,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:40:36,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:40:36,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:40:36,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:40:36,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:40:36" (1/1) ... [2020-10-13 13:40:36,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e399bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:36, skipping insertion in model container [2020-10-13 13:40:36,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:40:36" (1/1) ... [2020-10-13 13:40:36,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:40:36,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:40:37,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:40:37,218 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:40:37,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:40:37,365 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:40:37,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37 WrapperNode [2020-10-13 13:40:37,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:40:37,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:40:37,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:40:37,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:40:37,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (1/1) ... [2020-10-13 13:40:37,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:40:37,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:40:37,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:40:37,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:40:37,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (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 13:40:37,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:40:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:40:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:40:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:40:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:40:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:40:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:40:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:40:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:40:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:40:37,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:40:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:40:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:40:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:40:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:40:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:40:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:40:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:40:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:40:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:40:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:40:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:40:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:40:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:40:37,577 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:40:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:40:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:40:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:40:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:40:38,905 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:40:38,906 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:40:38,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:40:38 BoogieIcfgContainer [2020-10-13 13:40:38,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:40:38,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:40:38,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:40:38,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:40:38,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:40:36" (1/3) ... [2020-10-13 13:40:38,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7b1b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:40:38, skipping insertion in model container [2020-10-13 13:40:38,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:37" (2/3) ... [2020-10-13 13:40:38,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7b1b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:40:38, skipping insertion in model container [2020-10-13 13:40:38,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:40:38" (3/3) ... [2020-10-13 13:40:38,921 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-13 13:40:38,931 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:40:38,939 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:40:38,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:40:38,980 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:40:38,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:40:38,981 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:40:38,981 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:40:38,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:40:38,981 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:40:38,982 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:40:38,982 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:40:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states. [2020-10-13 13:40:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 13:40:39,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:39,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:40:39,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:39,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2099975591, now seen corresponding path program 1 times [2020-10-13 13:40:39,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:39,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105673672] [2020-10-13 13:40:39,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:39,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:40:40,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-13 13:40:40,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 13:40:40,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:40:40,563 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:40,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:40,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:40:40,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:40,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:40:40,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 13:40:40,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:40:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:40,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:40,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:40:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:40,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:40:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:40,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:40:40,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:40,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:40:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:40,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:40,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:40,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:40:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:40,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:40:40,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:40,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:40:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:40,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:40,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:40,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:40:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:40,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:40:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:40,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:40:40,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:40,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:40:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:40:41,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105673672] [2020-10-13 13:40:41,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:41,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:40:41,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434838974] [2020-10-13 13:40:41,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:40:41,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:41,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:40:41,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:40:41,097 INFO L87 Difference]: Start difference. First operand 366 states. Second operand 7 states. [2020-10-13 13:40:43,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:43,692 INFO L93 Difference]: Finished difference Result 563 states and 949 transitions. [2020-10-13 13:40:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:40:43,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-13 13:40:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:43,716 INFO L225 Difference]: With dead ends: 563 [2020-10-13 13:40:43,716 INFO L226 Difference]: Without dead ends: 402 [2020-10-13 13:40:43,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:40:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-13 13:40:43,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 361. [2020-10-13 13:40:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-13 13:40:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 621 transitions. [2020-10-13 13:40:43,828 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 621 transitions. Word has length 108 [2020-10-13 13:40:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:43,829 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 621 transitions. [2020-10-13 13:40:43,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:40:43,829 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 621 transitions. [2020-10-13 13:40:43,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 13:40:43,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:43,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:40:43,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:40:43,834 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:43,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:43,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1301505367, now seen corresponding path program 1 times [2020-10-13 13:40:43,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:43,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806256017] [2020-10-13 13:40:43,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:44,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:40:45,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:45,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-13 13:40:45,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:40:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-13 13:40:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:40:45,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:45,554 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:45,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:45,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:40:45,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:45,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:40:45,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-13 13:40:45,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:40:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:45,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:40:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:45,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:45,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:45,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:40:45,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:40:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:45,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:45,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:40:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:45,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:45,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:45,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:45,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:46,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:40:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:40:46,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:40:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:46,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:46,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:46,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:40:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:46,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:40:46,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:46,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:46,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:46,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:40:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:40:46,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:40:46,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:40:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,253 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 13:40:46,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806256017] [2020-10-13 13:40:46,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:46,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:40:46,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839466416] [2020-10-13 13:40:46,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:40:46,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:46,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:40:46,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:40:46,257 INFO L87 Difference]: Start difference. First operand 361 states and 621 transitions. Second operand 13 states. [2020-10-13 13:40:48,516 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:40:48,910 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-13 13:40:49,438 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 13:40:49,822 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-13 13:40:53,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:53,078 INFO L93 Difference]: Finished difference Result 561 states and 941 transitions. [2020-10-13 13:40:53,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:40:53,079 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-13 13:40:53,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:53,084 INFO L225 Difference]: With dead ends: 561 [2020-10-13 13:40:53,084 INFO L226 Difference]: Without dead ends: 402 [2020-10-13 13:40:53,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:40:53,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-13 13:40:53,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 361. [2020-10-13 13:40:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-13 13:40:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 575 transitions. [2020-10-13 13:40:53,129 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 575 transitions. Word has length 108 [2020-10-13 13:40:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:53,130 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 575 transitions. [2020-10-13 13:40:53,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:40:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 575 transitions. [2020-10-13 13:40:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:40:53,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:53,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:53,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:40:53,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:53,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:53,134 INFO L82 PathProgramCache]: Analyzing trace with hash 580123563, now seen corresponding path program 1 times [2020-10-13 13:40:53,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:53,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155096475] [2020-10-13 13:40:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:53,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:58,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:58,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:40:58,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:40:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-13 13:40:58,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 13:40:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:40:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:58,644 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:58,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:58,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:40:58,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:58,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:58,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:58,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:40:58,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 13:40:58,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:40:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:58,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:40:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:58,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:58,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:58,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:58,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:58,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:40:58,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:58,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:40:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:58,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:58,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:40:58,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:40:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:59,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:40:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:59,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:59,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:59,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:59,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:59,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:59,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:40:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:59,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:59,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:59,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:59,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:59,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:40:59,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:59,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:40:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:59,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:59,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:59,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:40:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:59,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:59,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:40:59,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:40:59,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:40:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:59,191 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 13:40:59,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155096475] [2020-10-13 13:40:59,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:59,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:40:59,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561574843] [2020-10-13 13:40:59,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:40:59,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:59,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:40:59,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:40:59,194 INFO L87 Difference]: Start difference. First operand 361 states and 575 transitions. Second operand 10 states. [2020-10-13 13:40:59,611 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:01,601 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:01,962 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:02,661 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:03,403 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:04,713 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-13 13:41:05,101 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:05,231 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:41:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:05,569 INFO L93 Difference]: Finished difference Result 759 states and 1216 transitions. [2020-10-13 13:41:05,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:41:05,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-13 13:41:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:05,576 INFO L225 Difference]: With dead ends: 759 [2020-10-13 13:41:05,576 INFO L226 Difference]: Without dead ends: 606 [2020-10-13 13:41:05,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:41:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-13 13:41:05,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 515. [2020-10-13 13:41:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-13 13:41:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 817 transitions. [2020-10-13 13:41:05,628 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 817 transitions. Word has length 153 [2020-10-13 13:41:05,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:05,629 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 817 transitions. [2020-10-13 13:41:05,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:41:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 817 transitions. [2020-10-13 13:41:05,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-13 13:41:05,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:05,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:05,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:41:05,633 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:05,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1205349876, now seen corresponding path program 1 times [2020-10-13 13:41:05,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:05,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524147977] [2020-10-13 13:41:05,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:05,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:06,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:06,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:08,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:10,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:10,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 13:41:10,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:41:10,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:41:10,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:41:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 13:41:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,071 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:11,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:11,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:41:11,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:41:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 13:41:11,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:41:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:41:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:11,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:41:11,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:41:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:11,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:41:11,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:11,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:41:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:11,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:41:11,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:11,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:11,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:41:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:11,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:11,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:41:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:41:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:11,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:11,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:41:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:11,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-13 13:41:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:11,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:11,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:11,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:41:11,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:11,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:41:11,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:41:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:11,607 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 13:41:11,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524147977] [2020-10-13 13:41:11,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:11,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:41:11,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576502035] [2020-10-13 13:41:11,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:41:11,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:11,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:41:11,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:41:11,610 INFO L87 Difference]: Start difference. First operand 515 states and 817 transitions. Second operand 10 states. [2020-10-13 13:41:11,990 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:13,747 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:14,405 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:14,757 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:15,324 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:17,047 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:41:17,171 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:17,317 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:41:17,539 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:17,653 INFO L93 Difference]: Finished difference Result 1301 states and 2071 transitions. [2020-10-13 13:41:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:41:17,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-13 13:41:17,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:17,659 INFO L225 Difference]: With dead ends: 1301 [2020-10-13 13:41:17,660 INFO L226 Difference]: Without dead ends: 994 [2020-10-13 13:41:17,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:41:17,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2020-10-13 13:41:17,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 824. [2020-10-13 13:41:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-13 13:41:17,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1307 transitions. [2020-10-13 13:41:17,734 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1307 transitions. Word has length 156 [2020-10-13 13:41:17,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:17,735 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 1307 transitions. [2020-10-13 13:41:17,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:41:17,735 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1307 transitions. [2020-10-13 13:41:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-13 13:41:17,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:17,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:17,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:41:17,738 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:17,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:17,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1283149497, now seen corresponding path program 1 times [2020-10-13 13:41:17,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:17,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453354846] [2020-10-13 13:41:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:17,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:18,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:18,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:18,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:22,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 13:41:22,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:41:22,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:41:22,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:22,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:41:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:41:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:41:22,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:23,257 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:23,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:23,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:23,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:23,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:41:23,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:23,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:23,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:41:23,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:23,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-13 13:41:23,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:23,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:41:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 13:41:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:23,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:41:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:23,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:23,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:23,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:23,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:23,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:23,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:41:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:23,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:23,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:23,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:23,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:23,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:41:23,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:23,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:23,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:41:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:41:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:23,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:23,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:23,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:23,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:23,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:41:23,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:41:23,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:23,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:41:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:23,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:24,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:24,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:24,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:41:24,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:24,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:41:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:24,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:24,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:24,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:41:24,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:24,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:41:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:24,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:24,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:41:24,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:24,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:24,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:41:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:41:24,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:24,245 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 13:41:24,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453354846] [2020-10-13 13:41:24,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:24,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:41:24,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953746053] [2020-10-13 13:41:24,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:41:24,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:24,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:41:24,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:41:24,248 INFO L87 Difference]: Start difference. First operand 824 states and 1307 transitions. Second operand 16 states. [2020-10-13 13:41:24,628 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:41:26,611 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:41:26,952 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:27,305 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:27,621 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:28,181 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:29,024 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:29,595 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:30,027 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:30,185 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:30,849 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:41:31,132 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:31,660 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:41:31,920 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:32,690 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:41:33,081 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:33,829 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 13:41:34,323 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-13 13:41:34,468 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:35,663 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:41:35,819 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:35,996 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:36,555 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:36,833 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:36,995 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:37,231 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:37,664 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:37,985 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:38,419 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:39,253 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:39,534 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:41:39,700 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:39,925 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:40,309 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:40,508 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:41,058 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:41,704 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:41,969 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:41:42,149 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:42,307 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:41:42,501 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:41:42,689 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:43,858 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:41:44,252 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-10-13 13:41:44,426 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:44,759 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:41:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:46,875 INFO L93 Difference]: Finished difference Result 6451 states and 10497 transitions. [2020-10-13 13:41:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-13 13:41:46,876 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 159 [2020-10-13 13:41:46,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:46,909 INFO L225 Difference]: With dead ends: 6451 [2020-10-13 13:41:46,910 INFO L226 Difference]: Without dead ends: 5835 [2020-10-13 13:41:46,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1332, Invalid=5148, Unknown=0, NotChecked=0, Total=6480 [2020-10-13 13:41:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2020-10-13 13:41:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 4559. [2020-10-13 13:41:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4559 states. [2020-10-13 13:41:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4559 states to 4559 states and 7288 transitions. [2020-10-13 13:41:47,228 INFO L78 Accepts]: Start accepts. Automaton has 4559 states and 7288 transitions. Word has length 159 [2020-10-13 13:41:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:47,228 INFO L479 AbstractCegarLoop]: Abstraction has 4559 states and 7288 transitions. [2020-10-13 13:41:47,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:41:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 4559 states and 7288 transitions. [2020-10-13 13:41:47,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 13:41:47,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:47,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:47,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:41:47,234 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:47,234 INFO L82 PathProgramCache]: Analyzing trace with hash -737345465, now seen corresponding path program 1 times [2020-10-13 13:41:47,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:47,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760193211] [2020-10-13 13:41:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:47,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:47,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:47,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:47,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:48,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:48,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:48,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:52,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:41:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:52,742 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:52,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:52,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:52,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:52,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:41:52,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:52,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:52,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:52,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:52,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:52,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:41:52,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:52,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-13 13:41:52,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:41:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:52,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:41:52,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:52,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:41:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:52,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:52,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:52,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:52,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:41:52,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:52,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:53,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:41:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:53,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:53,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:41:53,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:53,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:41:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:53,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:53,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:41:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:53,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:53,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:53,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:53,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:53,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:41:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:41:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:53,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:53,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:53,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:41:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:53,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:41:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:53,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:41:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:41:53,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:53,236 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 13:41:53,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760193211] [2020-10-13 13:41:53,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:53,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:41:53,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448634944] [2020-10-13 13:41:53,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:41:53,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:53,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:41:53,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:41:53,239 INFO L87 Difference]: Start difference. First operand 4559 states and 7288 transitions. Second operand 11 states. [2020-10-13 13:41:53,620 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:55,807 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:41:56,284 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:56,790 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:57,084 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:57,999 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:58,823 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:59,464 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:42:00,526 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:42:00,869 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:42:01,705 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:42:01,875 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:42:02,033 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:42:02,169 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:42:02,971 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:03,132 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:03,279 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:03,983 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:04,694 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:05,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:05,543 INFO L93 Difference]: Finished difference Result 15732 states and 25331 transitions. [2020-10-13 13:42:05,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:42:05,544 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 160 [2020-10-13 13:42:05,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:05,593 INFO L225 Difference]: With dead ends: 15732 [2020-10-13 13:42:05,594 INFO L226 Difference]: Without dead ends: 11381 [2020-10-13 13:42:05,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:42:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11381 states. [2020-10-13 13:42:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11381 to 9073. [2020-10-13 13:42:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9073 states. [2020-10-13 13:42:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9073 states to 9073 states and 14581 transitions. [2020-10-13 13:42:06,124 INFO L78 Accepts]: Start accepts. Automaton has 9073 states and 14581 transitions. Word has length 160 [2020-10-13 13:42:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:06,125 INFO L479 AbstractCegarLoop]: Abstraction has 9073 states and 14581 transitions. [2020-10-13 13:42:06,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:42:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 9073 states and 14581 transitions. [2020-10-13 13:42:06,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 13:42:06,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:06,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:06,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:42:06,131 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:06,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:06,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1048974594, now seen corresponding path program 1 times [2020-10-13 13:42:06,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:06,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938227522] [2020-10-13 13:42:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:06,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 13:42:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:42:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,536 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:11,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:11,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:42:11,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:42:11,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 13:42:11,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:42:11,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:42:11,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:42:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:42:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:11,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:11,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:11,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:42:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:42:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:42:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:11,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:42:11,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:42:11,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:42:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:11,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:11,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:42:11,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:42:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:42:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:11,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:42:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:42:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,988 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 13:42:11,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938227522] [2020-10-13 13:42:11,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:11,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:42:11,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613663833] [2020-10-13 13:42:11,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:42:11,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:11,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:42:11,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:42:11,991 INFO L87 Difference]: Start difference. First operand 9073 states and 14581 transitions. Second operand 11 states. [2020-10-13 13:42:12,387 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:42:14,247 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:42:14,570 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:15,007 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:42:15,664 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:16,171 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:42:16,473 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:18,220 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:42:18,560 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:42:19,774 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:20,934 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:42:21,186 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:42:21,358 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:42:21,507 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:42:22,720 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:23,774 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:24,801 INFO L93 Difference]: Finished difference Result 33489 states and 54114 transitions. [2020-10-13 13:42:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:42:24,802 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 161 [2020-10-13 13:42:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:24,905 INFO L225 Difference]: With dead ends: 33489 [2020-10-13 13:42:24,905 INFO L226 Difference]: Without dead ends: 24624 [2020-10-13 13:42:24,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:42:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24624 states. [2020-10-13 13:42:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24624 to 19654. [2020-10-13 13:42:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19654 states. [2020-10-13 13:42:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19654 states to 19654 states and 31737 transitions. [2020-10-13 13:42:25,955 INFO L78 Accepts]: Start accepts. Automaton has 19654 states and 31737 transitions. Word has length 161 [2020-10-13 13:42:25,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:25,956 INFO L479 AbstractCegarLoop]: Abstraction has 19654 states and 31737 transitions. [2020-10-13 13:42:25,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:42:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19654 states and 31737 transitions. [2020-10-13 13:42:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 13:42:25,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:25,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:25,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:42:25,964 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:25,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:25,964 INFO L82 PathProgramCache]: Analyzing trace with hash 2123739358, now seen corresponding path program 1 times [2020-10-13 13:42:25,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:25,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557015348] [2020-10-13 13:42:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:26,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:26,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:26,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:26,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:27,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:42:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,382 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:31,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:42:31,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:31,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:31,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:31,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:42:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:42:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:31,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:42:31,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:31,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:42:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:31,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:31,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:42:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:31,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:42:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:42:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:31,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:42:31,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:31,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:42:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:31,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:42:31,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:42:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:42:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:42:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:42:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:31,810 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 13:42:31,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557015348] [2020-10-13 13:42:31,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:31,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:42:31,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499620510] [2020-10-13 13:42:31,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:42:31,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:31,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:42:31,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:42:31,811 INFO L87 Difference]: Start difference. First operand 19654 states and 31737 transitions. Second operand 11 states. [2020-10-13 13:42:32,176 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:42:33,886 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:42:34,177 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:34,595 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:35,012 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:35,401 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:35,671 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:36,174 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:36,307 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:42:37,226 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:42:37,572 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:42:40,473 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:40,609 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:41,532 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:42:41,970 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2020-10-13 13:42:42,308 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:42:42,585 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 127 [2020-10-13 13:42:43,801 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:45,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:45,427 INFO L93 Difference]: Finished difference Result 102055 states and 165265 transitions. [2020-10-13 13:42:45,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:42:45,427 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2020-10-13 13:42:45,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:45,713 INFO L225 Difference]: With dead ends: 102055 [2020-10-13 13:42:45,714 INFO L226 Difference]: Without dead ends: 82609 [2020-10-13 13:42:45,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:42:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82609 states. [2020-10-13 13:42:49,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82609 to 66529. [2020-10-13 13:42:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66529 states. [2020-10-13 13:42:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66529 states to 66529 states and 107288 transitions. [2020-10-13 13:42:49,753 INFO L78 Accepts]: Start accepts. Automaton has 66529 states and 107288 transitions. Word has length 162 [2020-10-13 13:42:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:49,754 INFO L479 AbstractCegarLoop]: Abstraction has 66529 states and 107288 transitions. [2020-10-13 13:42:49,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:42:49,754 INFO L276 IsEmpty]: Start isEmpty. Operand 66529 states and 107288 transitions. [2020-10-13 13:42:49,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 13:42:49,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:49,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:49,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:42:49,763 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:49,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:49,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1641939125, now seen corresponding path program 1 times [2020-10-13 13:42:49,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:49,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133518033] [2020-10-13 13:42:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:50,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:50,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:50,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:52,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:54,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:42:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,179 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:55,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:55,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:42:55,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:42:55,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 13:42:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:42:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:42:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:55,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:42:55,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:42:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:55,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:42:55,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:55,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:42:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:55,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:42:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:55,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:42:55,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:42:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:55,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:55,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:42:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:55,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:42:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:55,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:55,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:55,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:55,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:55,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:42:55,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:42:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:42:55,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133518033] [2020-10-13 13:42:55,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:55,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:42:55,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787048267] [2020-10-13 13:42:55,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:42:55,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:55,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:42:55,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:42:55,591 INFO L87 Difference]: Start difference. First operand 66529 states and 107288 transitions. Second operand 10 states. [2020-10-13 13:42:55,972 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:42:57,726 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:58,162 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:58,748 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:42:59,054 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:02,181 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:43:02,322 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:43:02,489 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:43:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:43:04,161 INFO L93 Difference]: Finished difference Result 173042 states and 279048 transitions. [2020-10-13 13:43:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:43:04,161 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-13 13:43:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:43:04,471 INFO L225 Difference]: With dead ends: 173042 [2020-10-13 13:43:04,471 INFO L226 Difference]: Without dead ends: 106721 [2020-10-13 13:43:04,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:43:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106721 states. [2020-10-13 13:43:09,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106721 to 83707. [2020-10-13 13:43:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83707 states. [2020-10-13 13:43:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83707 states to 83707 states and 135335 transitions. [2020-10-13 13:43:10,072 INFO L78 Accepts]: Start accepts. Automaton has 83707 states and 135335 transitions. Word has length 163 [2020-10-13 13:43:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:43:10,073 INFO L479 AbstractCegarLoop]: Abstraction has 83707 states and 135335 transitions. [2020-10-13 13:43:10,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:43:10,073 INFO L276 IsEmpty]: Start isEmpty. Operand 83707 states and 135335 transitions. [2020-10-13 13:43:10,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 13:43:10,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:43:10,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:10,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:43:10,083 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:43:10,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:43:10,083 INFO L82 PathProgramCache]: Analyzing trace with hash 700823971, now seen corresponding path program 1 times [2020-10-13 13:43:10,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:43:10,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789624776] [2020-10-13 13:43:10,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:43:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:10,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:10,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 13:43:15,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 13:43:15,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,498 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:43:15,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:43:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:43:15,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:43:15,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:43:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:43:15,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:43:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:43:15,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 13:43:15,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:43:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 13:43:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:43:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:43:15,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:43:15,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:43:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:43:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:15,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:43:15,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:15,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:43:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:43:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 13:43:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:43:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:43:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-13 13:43:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:15,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:43:15,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:43:15,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:15,897 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 13:43:15,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789624776] [2020-10-13 13:43:15,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:43:15,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:43:15,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283477355] [2020-10-13 13:43:15,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:43:15,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:43:15,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:43:15,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:43:15,899 INFO L87 Difference]: Start difference. First operand 83707 states and 135335 transitions. Second operand 11 states. [2020-10-13 13:43:16,292 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:43:18,183 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:43:18,475 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:18,905 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:19,343 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:19,785 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:43:21,012 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:43:21,362 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:43:23,154 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:43:23,332 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:23,471 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:24,906 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:43:25,491 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:26,927 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:43:27,723 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:27,860 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:28,727 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:43:29,151 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:43:29,669 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:43:29,822 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:43:31,132 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:43:38,841 INFO L93 Difference]: Finished difference Result 492001 states and 799900 transitions. [2020-10-13 13:43:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:43:38,841 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-10-13 13:43:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:43:39,687 INFO L225 Difference]: With dead ends: 492001 [2020-10-13 13:43:39,688 INFO L226 Difference]: Without dead ends: 408502 [2020-10-13 13:43:39,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:43:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408502 states. [2020-10-13 13:43:54,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408502 to 332598. [2020-10-13 13:43:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332598 states. [2020-10-13 13:43:54,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332598 states to 332598 states and 538609 transitions. [2020-10-13 13:43:54,685 INFO L78 Accepts]: Start accepts. Automaton has 332598 states and 538609 transitions. Word has length 166 [2020-10-13 13:43:54,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:43:54,686 INFO L479 AbstractCegarLoop]: Abstraction has 332598 states and 538609 transitions. [2020-10-13 13:43:54,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:43:54,686 INFO L276 IsEmpty]: Start isEmpty. Operand 332598 states and 538609 transitions. [2020-10-13 13:43:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 13:43:54,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:43:54,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:54,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:43:54,696 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:43:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:43:54,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1285841782, now seen corresponding path program 1 times [2020-10-13 13:43:54,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:43:54,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189808664] [2020-10-13 13:43:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:43:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:58,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:03,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:03,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-13 13:44:03,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:44:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:44:03,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:44:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 13:44:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 13:44:03,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,316 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:44:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:44:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:44:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:44:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:44:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:44:04,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 13:44:04,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:44:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:44:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 13:44:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:44:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:44:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:44:04,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:44:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:44:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:44:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:44:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:44:04,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:44:04,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:44:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:44:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:44:04,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:44:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:44:04,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:44:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:44:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:44:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:44:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:44:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:44:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:44:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:44:04,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-13 13:44:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:44:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:44:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-13 13:44:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:44:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:44:04,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:44:04,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:44:04,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:44:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:44:04,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:44:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:44:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:44:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:44:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:44:04,676 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 13:44:04,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189808664] [2020-10-13 13:44:04,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:44:04,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:44:04,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322202314] [2020-10-13 13:44:04,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:44:04,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:44:04,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:44:04,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:44:04,677 INFO L87 Difference]: Start difference. First operand 332598 states and 538609 transitions. Second operand 10 states. [2020-10-13 13:44:05,069 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:44:06,881 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122