/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=BIGGEST --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_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:54:29,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:54:29,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:54:29,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:54:29,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:54:29,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:54:29,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:54:29,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:54:29,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:54:29,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:54:29,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:54:29,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:54:29,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:54:29,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:54:29,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:54:29,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:54:29,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:54:29,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:54:29,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:54:29,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:54:29,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:54:29,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:54:29,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:54:29,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:54:29,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:54:29,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:54:29,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:54:29,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:54:29,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:54:29,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:54:29,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:54:29,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:54:29,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:54:29,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:54:29,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:54:29,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:54:29,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:54:29,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:54:29,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:54:29,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:54:29,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:54:29,427 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 [2020-10-12 18:54:29,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:54:29,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:54:29,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:54:29,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:54:29,468 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:54:29,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:54:29,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:54:29,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:54:29,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:54:29,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:54:29,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:54:29,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:54:29,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:54:29,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:54:29,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:54:29,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:54:29,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:54:29,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:54:29,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:54:29,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:54:29,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:54:29,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:54:29,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:54:29,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:54:29,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:54:29,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:54:29,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:54:29,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:54:29,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:54:29,474 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:54:29,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:54:29,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:54:29,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:54:29,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:54:29,822 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:54:29,823 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2020-10-12 18:54:29,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f0481725/de083f94bb0e4a1bab4aac52d32c50e1/FLAG664b96de4 [2020-10-12 18:54:30,369 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:54:30,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2020-10-12 18:54:30,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f0481725/de083f94bb0e4a1bab4aac52d32c50e1/FLAG664b96de4 [2020-10-12 18:54:30,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f0481725/de083f94bb0e4a1bab4aac52d32c50e1 [2020-10-12 18:54:30,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:54:30,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:54:30,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:54:30,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:54:30,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:54:30,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:54:30" (1/1) ... [2020-10-12 18:54:30,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3741856d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:30, skipping insertion in model container [2020-10-12 18:54:30,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:54:30" (1/1) ... [2020-10-12 18:54:30,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:54:30,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:54:31,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:54:31,196 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:54:31,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:54:31,282 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:54:31,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31 WrapperNode [2020-10-12 18:54:31,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:54:31,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:54:31,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:54:31,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:54:31,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (1/1) ... [2020-10-12 18:54:31,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:54:31,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:54:31,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:54:31,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:54:31,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (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 [2020-10-12 18:54:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:54:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:54:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:54:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:54:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:54:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:54:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:54:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:54:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:54:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:54:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:54:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:54:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:54:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:54:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:54:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:54:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:54:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:54:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:54:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:54:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:54:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:54:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:54:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:54:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:54:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:54:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:54:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:54:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:54:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:54:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:54:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:54:32,237 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:54:32,237 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:54:32,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:54:32 BoogieIcfgContainer [2020-10-12 18:54:32,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:54:32,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:54:32,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:54:32,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:54:32,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:54:30" (1/3) ... [2020-10-12 18:54:32,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61294add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:54:32, skipping insertion in model container [2020-10-12 18:54:32,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:31" (2/3) ... [2020-10-12 18:54:32,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61294add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:54:32, skipping insertion in model container [2020-10-12 18:54:32,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:54:32" (3/3) ... [2020-10-12 18:54:32,252 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2020-10-12 18:54:32,263 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:54:32,271 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:54:32,286 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:54:32,313 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:54:32,313 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:54:32,313 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:54:32,313 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:54:32,314 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:54:32,314 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:54:32,314 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:54:32,314 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:54:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2020-10-12 18:54:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-12 18:54:32,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:32,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:32,353 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:32,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:32,359 INFO L82 PathProgramCache]: Analyzing trace with hash 878002609, now seen corresponding path program 1 times [2020-10-12 18:54:32,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:32,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634965188] [2020-10-12 18:54:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:54:33,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-12 18:54:33,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:54:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:54:33,272 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:54:33,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:33,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:54:33,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:33,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:33,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:33,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:54:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:33,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:33,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:54:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:33,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:54:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:33,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:54:33,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:33,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:54:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:33,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:33,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:33,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:54:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:33,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:33,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:33,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:54:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:33,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:33,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:33,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:54:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:33,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:33,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:33,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:54:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:33,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:33,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:54:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:33,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:33,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:33,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:33,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:33,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:33,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:54:33,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634965188] [2020-10-12 18:54:33,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:33,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:54:33,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002390923] [2020-10-12 18:54:33,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:54:33,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:33,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:54:33,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:54:33,624 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 9 states. [2020-10-12 18:54:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:35,252 INFO L93 Difference]: Finished difference Result 320 states and 481 transitions. [2020-10-12 18:54:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:54:35,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-12 18:54:35,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:35,268 INFO L225 Difference]: With dead ends: 320 [2020-10-12 18:54:35,268 INFO L226 Difference]: Without dead ends: 186 [2020-10-12 18:54:35,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:54:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-12 18:54:35,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 180. [2020-10-12 18:54:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-12 18:54:35,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 278 transitions. [2020-10-12 18:54:35,336 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 278 transitions. Word has length 74 [2020-10-12 18:54:35,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:35,337 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 278 transitions. [2020-10-12 18:54:35,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:54:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 278 transitions. [2020-10-12 18:54:35,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-12 18:54:35,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:35,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:35,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:54:35,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:35,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1438702387, now seen corresponding path program 1 times [2020-10-12 18:54:35,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:35,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081852170] [2020-10-12 18:54:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:54:36,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-12 18:54:36,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:54:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:54:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:54:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,281 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:54:36,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:36,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:54:36,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:54:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:36,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:36,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:54:36,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:36,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:54:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:54:36,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:54:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:36,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:54:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:36,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:36,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:54:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:36,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:54:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:36,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:36,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:54:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:36,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:36,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:54:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:36,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:36,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:36,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:36,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:54:36,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081852170] [2020-10-12 18:54:36,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:36,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:54:36,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624832967] [2020-10-12 18:54:36,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:54:36,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:36,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:54:36,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:54:36,670 INFO L87 Difference]: Start difference. First operand 180 states and 278 transitions. Second operand 15 states. [2020-10-12 18:54:36,891 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:54:37,080 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:54:37,369 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:54:37,542 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:54:39,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:39,694 INFO L93 Difference]: Finished difference Result 325 states and 489 transitions. [2020-10-12 18:54:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:54:39,695 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-12 18:54:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:39,699 INFO L225 Difference]: With dead ends: 325 [2020-10-12 18:54:39,699 INFO L226 Difference]: Without dead ends: 198 [2020-10-12 18:54:39,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:54:39,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-12 18:54:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 180. [2020-10-12 18:54:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-12 18:54:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 237 transitions. [2020-10-12 18:54:39,747 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 237 transitions. Word has length 74 [2020-10-12 18:54:39,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:39,751 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 237 transitions. [2020-10-12 18:54:39,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:54:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 237 transitions. [2020-10-12 18:54:39,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-12 18:54:39,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:39,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:54:39,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:54:39,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:39,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:39,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1255610153, now seen corresponding path program 1 times [2020-10-12 18:54:39,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:39,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313024275] [2020-10-12 18:54:39,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:40,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:40,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:44,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:44,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-12 18:54:44,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:54:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-12 18:54:44,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:44,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 18:54:44,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:54:44,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:54:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:45,074 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:54:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:45,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:54:45,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:54:45,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 18:54:45,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:54:45,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:54:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:54:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:45,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:45,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:54:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:45,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:54:45,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:45,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:54:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:45,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:54:45,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:54:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:45,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:54:45,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:54:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:45,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:54:45,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:54:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:45,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:54:45,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:45,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:45,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:54:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:45,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:54:45,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:45,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:45,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:45,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:54:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:45,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:45,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:45,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:45,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:45,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:54:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:54:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:54:45,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313024275] [2020-10-12 18:54:45,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:45,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:54:45,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396379808] [2020-10-12 18:54:45,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:54:45,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:45,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:54:45,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:54:45,828 INFO L87 Difference]: Start difference. First operand 180 states and 237 transitions. Second operand 22 states. [2020-10-12 18:54:46,118 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:54:46,343 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:54:46,532 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:54:46,739 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:54:46,952 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:54:47,192 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:54:54,432 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:54:54,630 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:54:54,834 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:54:55,044 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:54:55,251 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:54:55,459 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:55:09,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:09,002 INFO L93 Difference]: Finished difference Result 1888 states and 2742 transitions. [2020-10-12 18:55:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2020-10-12 18:55:09,005 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 114 [2020-10-12 18:55:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:09,020 INFO L225 Difference]: With dead ends: 1888 [2020-10-12 18:55:09,020 INFO L226 Difference]: Without dead ends: 1767 [2020-10-12 18:55:09,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7389 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=3530, Invalid=17350, Unknown=0, NotChecked=0, Total=20880 [2020-10-12 18:55:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-10-12 18:55:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1665. [2020-10-12 18:55:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1665 states. [2020-10-12 18:55:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2459 transitions. [2020-10-12 18:55:09,167 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2459 transitions. Word has length 114 [2020-10-12 18:55:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:09,168 INFO L479 AbstractCegarLoop]: Abstraction has 1665 states and 2459 transitions. [2020-10-12 18:55:09,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:55:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2459 transitions. [2020-10-12 18:55:09,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:55:09,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:09,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:55:09,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:55:09,173 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:09,174 INFO L82 PathProgramCache]: Analyzing trace with hash 20157737, now seen corresponding path program 1 times [2020-10-12 18:55:09,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:09,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338218109] [2020-10-12 18:55:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:09,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:09,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:09,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:09,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:09,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:55:14,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:55:14,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:55:14,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:55:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 18:55:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:55:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,463 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:14,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:14,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:55:14,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:14,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:55:14,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:14,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:14,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:14,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:55:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:14,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:55:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:14,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:55:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:14,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:55:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:14,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:55:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:14,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:14,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:55:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:14,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:14,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:14,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:14,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:55:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:55:14,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338218109] [2020-10-12 18:55:14,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:14,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:55:14,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750715082] [2020-10-12 18:55:14,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:55:14,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:14,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:55:14,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:55:14,760 INFO L87 Difference]: Start difference. First operand 1665 states and 2459 transitions. Second operand 15 states. [2020-10-12 18:55:16,746 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:55:16,930 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:55:17,161 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:55:17,358 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:55:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:17,605 INFO L93 Difference]: Finished difference Result 1898 states and 2802 transitions. [2020-10-12 18:55:17,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:55:17,606 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 115 [2020-10-12 18:55:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:17,633 INFO L225 Difference]: With dead ends: 1898 [2020-10-12 18:55:17,634 INFO L226 Difference]: Without dead ends: 1896 [2020-10-12 18:55:17,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-12 18:55:17,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2020-10-12 18:55:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1728. [2020-10-12 18:55:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-10-12 18:55:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2522 transitions. [2020-10-12 18:55:17,831 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2522 transitions. Word has length 115 [2020-10-12 18:55:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:17,832 INFO L479 AbstractCegarLoop]: Abstraction has 1728 states and 2522 transitions. [2020-10-12 18:55:17,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:55:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2522 transitions. [2020-10-12 18:55:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 18:55:17,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:17,838 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] [2020-10-12 18:55:17,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:55:17,838 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:17,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1955823873, now seen corresponding path program 1 times [2020-10-12 18:55:17,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:17,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932205041] [2020-10-12 18:55:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:18,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 18:55:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:55:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:55:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:55:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:55:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:23,220 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:23,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:23,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:55:23,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:23,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:55:23,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:55:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:23,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:23,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:23,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:23,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:23,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:55:23,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:23,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:55:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:23,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:23,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:23,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:55:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:23,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:23,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:55:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:23,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:23,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:23,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:23,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:55:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:23,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:23,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:23,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:55:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:23,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:23,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:23,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:55:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:23,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:23,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:23,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:55:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:55:23,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932205041] [2020-10-12 18:55:23,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:23,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:55:23,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575110423] [2020-10-12 18:55:23,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:55:23,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:23,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:55:23,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:55:23,621 INFO L87 Difference]: Start difference. First operand 1728 states and 2522 transitions. Second operand 14 states. [2020-10-12 18:55:23,814 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:55:24,503 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:55:27,786 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:55:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:29,139 INFO L93 Difference]: Finished difference Result 8141 states and 11923 transitions. [2020-10-12 18:55:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 18:55:29,140 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 116 [2020-10-12 18:55:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:29,175 INFO L225 Difference]: With dead ends: 8141 [2020-10-12 18:55:29,175 INFO L226 Difference]: Without dead ends: 6472 [2020-10-12 18:55:29,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=417, Invalid=1389, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 18:55:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2020-10-12 18:55:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 6166. [2020-10-12 18:55:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6166 states. [2020-10-12 18:55:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6166 states to 6166 states and 9106 transitions. [2020-10-12 18:55:29,623 INFO L78 Accepts]: Start accepts. Automaton has 6166 states and 9106 transitions. Word has length 116 [2020-10-12 18:55:29,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:29,624 INFO L479 AbstractCegarLoop]: Abstraction has 6166 states and 9106 transitions. [2020-10-12 18:55:29,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:55:29,625 INFO L276 IsEmpty]: Start isEmpty. Operand 6166 states and 9106 transitions. [2020-10-12 18:55:29,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:55:29,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:29,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:55:29,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:55:29,630 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:29,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:29,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1396023369, now seen corresponding path program 1 times [2020-10-12 18:55:29,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:29,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585816581] [2020-10-12 18:55:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:31,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:31,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:34,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:55:34,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:55:34,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:55:34,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:34,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:55:34,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:55:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:55:34,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:34,899 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:34,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:34,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:34,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:34,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:34,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:55:34,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:55:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:34,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:34,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:55:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:55:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:55:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:34,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:34,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:34,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:34,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:34,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:34,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:35,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:35,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:55:35,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:55:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:35,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:55:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:35,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:35,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:35,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:55:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:35,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:35,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:35,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:35,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:55:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:35,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:35,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:35,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:35,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:55:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:35,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:35,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:35,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:55:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:35,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:35,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:35,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:35,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:55:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:35,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:35,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:35,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:35,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:35,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:55:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:55:35,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585816581] [2020-10-12 18:55:35,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:35,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:55:35,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249612491] [2020-10-12 18:55:35,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:55:35,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:35,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:55:35,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:55:35,327 INFO L87 Difference]: Start difference. First operand 6166 states and 9106 transitions. Second operand 16 states. [2020-10-12 18:55:35,588 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:55:35,837 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:55:36,390 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:55:36,582 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:55:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:39,582 INFO L93 Difference]: Finished difference Result 14113 states and 20765 transitions. [2020-10-12 18:55:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:55:39,583 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 117 [2020-10-12 18:55:39,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:39,629 INFO L225 Difference]: With dead ends: 14113 [2020-10-12 18:55:39,629 INFO L226 Difference]: Without dead ends: 9366 [2020-10-12 18:55:39,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=359, Invalid=973, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 18:55:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9366 states. [2020-10-12 18:55:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9366 to 6453. [2020-10-12 18:55:40,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2020-10-12 18:55:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9534 transitions. [2020-10-12 18:55:40,057 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9534 transitions. Word has length 117 [2020-10-12 18:55:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:40,057 INFO L479 AbstractCegarLoop]: Abstraction has 6453 states and 9534 transitions. [2020-10-12 18:55:40,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:55:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9534 transitions. [2020-10-12 18:55:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:55:40,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:40,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:55:40,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:55:40,062 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1005079957, now seen corresponding path program 1 times [2020-10-12 18:55:40,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:40,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182097639] [2020-10-12 18:55:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:40,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:40,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:40,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:40,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:40,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:55:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-12 18:55:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,367 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:45,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:45,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:55:45,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:45,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:45,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:45,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 18:55:45,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:55:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:55:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:45,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:45,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:45,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:55:45,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:55:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:55:45,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:55:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:55:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:55:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:45,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:55:45,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:45,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:55:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:55:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:55:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:45,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:45,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:45,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:55:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:45,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:45,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:55:45,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:45,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:45,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:55:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:55:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:55:46,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182097639] [2020-10-12 18:55:46,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:46,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:55:46,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509762782] [2020-10-12 18:55:46,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:55:46,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:46,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:55:46,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:55:46,027 INFO L87 Difference]: Start difference. First operand 6453 states and 9534 transitions. Second operand 22 states. [2020-10-12 18:55:46,522 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 168 [2020-10-12 18:55:46,742 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:55:46,949 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:55:47,150 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:55:47,368 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:55:47,581 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:55:47,970 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:55:48,228 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:55:48,541 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:55:48,974 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:55:49,697 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:55:50,708 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:55:52,308 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:55:52,508 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:55:52,721 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:55:52,939 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:55:53,156 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:55:55,748 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:55:56,185 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-12 18:55:56,596 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:56:00,853 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-12 18:56:05,552 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 18:56:08,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:08,587 INFO L93 Difference]: Finished difference Result 18832 states and 28204 transitions. [2020-10-12 18:56:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2020-10-12 18:56:08,588 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 117 [2020-10-12 18:56:08,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:08,686 INFO L225 Difference]: With dead ends: 18832 [2020-10-12 18:56:08,687 INFO L226 Difference]: Without dead ends: 13192 [2020-10-12 18:56:08,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7185 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=3484, Invalid=15976, Unknown=0, NotChecked=0, Total=19460 [2020-10-12 18:56:08,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13192 states. [2020-10-12 18:56:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13192 to 10368. [2020-10-12 18:56:09,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10368 states. [2020-10-12 18:56:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10368 states to 10368 states and 15296 transitions. [2020-10-12 18:56:09,798 INFO L78 Accepts]: Start accepts. Automaton has 10368 states and 15296 transitions. Word has length 117 [2020-10-12 18:56:09,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:09,799 INFO L479 AbstractCegarLoop]: Abstraction has 10368 states and 15296 transitions. [2020-10-12 18:56:09,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:56:09,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10368 states and 15296 transitions. [2020-10-12 18:56:09,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:56:09,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:09,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:09,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:56:09,808 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:09,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1502646505, now seen corresponding path program 1 times [2020-10-12 18:56:09,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:09,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222948383] [2020-10-12 18:56:09,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:09,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:09,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:10,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:11,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:14,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:14,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:56:14,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:56:14,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:56:14,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:56:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:56:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 18:56:14,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,101 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:15,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:15,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:56:15,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:15,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:56:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:56:15,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:56:15,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:15,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:15,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:56:15,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:56:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:15,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:15,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:15,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:15,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:56:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:56:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:56:15,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:56:15,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:56:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:56:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:56:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:56:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:56:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:56:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:15,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:15,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:15,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:15,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222948383] [2020-10-12 18:56:15,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:15,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:56:15,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753861251] [2020-10-12 18:56:15,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:56:15,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:15,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:56:15,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:56:15,454 INFO L87 Difference]: Start difference. First operand 10368 states and 15296 transitions. Second operand 16 states. [2020-10-12 18:56:15,833 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2020-10-12 18:56:16,094 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:16,767 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 164 [2020-10-12 18:56:16,926 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-12 18:56:17,173 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:17,459 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:17,682 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:56:17,860 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:56:18,086 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:18,382 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:18,684 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:19,118 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-10-12 18:56:19,385 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:19,691 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-12 18:56:19,933 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:20,235 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:20,538 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:21,075 INFO L93 Difference]: Finished difference Result 18648 states and 27226 transitions. [2020-10-12 18:56:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:56:21,075 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 117 [2020-10-12 18:56:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:21,150 INFO L225 Difference]: With dead ends: 18648 [2020-10-12 18:56:21,150 INFO L226 Difference]: Without dead ends: 15795 [2020-10-12 18:56:21,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 18:56:21,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15795 states. [2020-10-12 18:56:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15795 to 10308. [2020-10-12 18:56:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10308 states. [2020-10-12 18:56:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10308 states to 10308 states and 15200 transitions. [2020-10-12 18:56:21,945 INFO L78 Accepts]: Start accepts. Automaton has 10308 states and 15200 transitions. Word has length 117 [2020-10-12 18:56:21,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:21,945 INFO L479 AbstractCegarLoop]: Abstraction has 10308 states and 15200 transitions. [2020-10-12 18:56:21,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:56:21,945 INFO L276 IsEmpty]: Start isEmpty. Operand 10308 states and 15200 transitions. [2020-10-12 18:56:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:56:21,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:21,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:21,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:56:21,949 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:21,950 INFO L82 PathProgramCache]: Analyzing trace with hash 649074473, now seen corresponding path program 1 times [2020-10-12 18:56:21,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:21,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573738371] [2020-10-12 18:56:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:22,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:22,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:22,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:22,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:56:27,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:56:27,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 18:56:27,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:56:27,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:56:27,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 18:56:27,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,291 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:27,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:56:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:56:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:56:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:27,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:56:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:56:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:27,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:27,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:27,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:27,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:27,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:56:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:56:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:56:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:27,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:27,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:27,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:27,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:27,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:56:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:27,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:27,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:56:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:27,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:27,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:27,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:27,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:27,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573738371] [2020-10-12 18:56:27,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:27,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:56:27,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632418736] [2020-10-12 18:56:27,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:56:27,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:27,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:56:27,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:56:27,631 INFO L87 Difference]: Start difference. First operand 10308 states and 15200 transitions. Second operand 16 states. [2020-10-12 18:56:28,052 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 163 [2020-10-12 18:56:28,279 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:56:29,016 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:56:29,194 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-12 18:56:29,465 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:29,783 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:30,314 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:56:30,522 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-12 18:56:30,777 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:31,095 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:31,553 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-12 18:56:31,851 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:32,136 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:32,450 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:56:32,754 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-12 18:56:32,963 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-12 18:56:33,229 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:33,552 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:34,072 INFO L93 Difference]: Finished difference Result 24567 states and 35830 transitions. [2020-10-12 18:56:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:56:34,072 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 117 [2020-10-12 18:56:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:34,118 INFO L225 Difference]: With dead ends: 24567 [2020-10-12 18:56:34,119 INFO L226 Difference]: Without dead ends: 14449 [2020-10-12 18:56:34,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 18:56:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14449 states. [2020-10-12 18:56:34,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14449 to 10262. [2020-10-12 18:56:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10262 states. [2020-10-12 18:56:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10262 states to 10262 states and 15126 transitions. [2020-10-12 18:56:34,706 INFO L78 Accepts]: Start accepts. Automaton has 10262 states and 15126 transitions. Word has length 117 [2020-10-12 18:56:34,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:34,706 INFO L479 AbstractCegarLoop]: Abstraction has 10262 states and 15126 transitions. [2020-10-12 18:56:34,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:56:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 10262 states and 15126 transitions. [2020-10-12 18:56:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:56:34,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:34,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:34,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:56:34,709 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:34,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1245726730, now seen corresponding path program 1 times [2020-10-12 18:56:34,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:34,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994453229] [2020-10-12 18:56:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:34,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:34,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:34,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:34,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:35,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:56:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:56:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 18:56:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:39,973 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:39,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:39,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:39,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:39,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:56:39,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:56:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:56:40,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:56:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:56:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:56:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:40,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:40,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:40,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:40,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:56:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:56:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:40,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:40,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:40,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:56:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:40,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:40,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:40,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:56:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:40,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:56:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:56:40,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:56:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:56:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:56:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:40,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:40,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:40,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:40,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994453229] [2020-10-12 18:56:40,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:40,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:56:40,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765986694] [2020-10-12 18:56:40,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:56:40,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:40,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:56:40,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:56:40,317 INFO L87 Difference]: Start difference. First operand 10262 states and 15126 transitions. Second operand 16 states. [2020-10-12 18:56:40,697 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2020-10-12 18:56:40,901 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:41,598 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 164 [2020-10-12 18:56:41,758 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-12 18:56:42,007 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:42,291 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:42,574 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:42,836 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-12 18:56:43,123 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:43,354 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:56:43,528 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-12 18:56:43,879 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-10-12 18:56:44,131 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:44,380 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:44,630 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:44,914 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-12 18:56:45,216 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-12 18:56:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:45,665 INFO L93 Difference]: Finished difference Result 20076 states and 29245 transitions. [2020-10-12 18:56:45,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:56:45,667 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 117 [2020-10-12 18:56:45,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:45,700 INFO L225 Difference]: With dead ends: 20076 [2020-10-12 18:56:45,700 INFO L226 Difference]: Without dead ends: 11111 [2020-10-12 18:56:45,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 18:56:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11111 states. [2020-10-12 18:56:46,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11111 to 10352. [2020-10-12 18:56:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10352 states. [2020-10-12 18:56:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10352 states to 10352 states and 15252 transitions. [2020-10-12 18:56:46,464 INFO L78 Accepts]: Start accepts. Automaton has 10352 states and 15252 transitions. Word has length 117 [2020-10-12 18:56:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:46,465 INFO L479 AbstractCegarLoop]: Abstraction has 10352 states and 15252 transitions. [2020-10-12 18:56:46,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:56:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 10352 states and 15252 transitions. [2020-10-12 18:56:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:56:46,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:46,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:46,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:56:46,468 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1186063615, now seen corresponding path program 1 times [2020-10-12 18:56:46,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:46,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317233175] [2020-10-12 18:56:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:46,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:46,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:46,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:50,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 18:56:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,747 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:51,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:51,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:56:51,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:56:51,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:56:51,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:56:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:56:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:51,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:51,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:51,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:51,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:56:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:56:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:51,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:56:51,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:56:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:51,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:51,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:56:51,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:56:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:56:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:51,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:56:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:56:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:52,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:56:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:52,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:52,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:52,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:52,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:52,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:52,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:56:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:52,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:52,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:52,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:52,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:52,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:56:52,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:52,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317233175] [2020-10-12 18:56:52,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:52,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:56:52,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794286109] [2020-10-12 18:56:52,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:56:52,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:52,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:56:52,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:56:52,086 INFO L87 Difference]: Start difference. First operand 10352 states and 15252 transitions. Second operand 16 states. [2020-10-12 18:56:52,479 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 163 [2020-10-12 18:56:52,693 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:56:53,420 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:56:53,604 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-12 18:56:53,872 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:54,176 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:54,470 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:54,940 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:56:55,153 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-12 18:56:55,379 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:56:55,782 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-12 18:56:56,049 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:56,363 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:56,615 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:56,908 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 18:56:57,126 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-12 18:56:57,339 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-12 18:56:57,556 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:56:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:58,082 INFO L93 Difference]: Finished difference Result 22950 states and 33388 transitions. [2020-10-12 18:56:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:56:58,083 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 117 [2020-10-12 18:56:58,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:58,126 INFO L225 Difference]: With dead ends: 22950 [2020-10-12 18:56:58,126 INFO L226 Difference]: Without dead ends: 12882 [2020-10-12 18:56:58,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 18:56:58,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12882 states. [2020-10-12 18:56:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12882 to 10367. [2020-10-12 18:56:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10367 states. [2020-10-12 18:56:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10367 states to 10367 states and 15271 transitions. [2020-10-12 18:56:58,841 INFO L78 Accepts]: Start accepts. Automaton has 10367 states and 15271 transitions. Word has length 117 [2020-10-12 18:56:58,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:58,842 INFO L479 AbstractCegarLoop]: Abstraction has 10367 states and 15271 transitions. [2020-10-12 18:56:58,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:56:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10367 states and 15271 transitions. [2020-10-12 18:56:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-12 18:56:58,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:58,850 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:58,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:56:58,850 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:58,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1564256675, now seen corresponding path program 1 times [2020-10-12 18:56:58,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:58,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264545614] [2020-10-12 18:56:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:58,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:58,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:59,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:59,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:03,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:03,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:57:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,103 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:04,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:04,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 18:57:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:57:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:57:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:04,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:57:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:04,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:04,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:57:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:04,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:57:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:04,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:57:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:04,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:57:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:57:04,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:57:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:57:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 18:57:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 18:57:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-12 18:57:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:04,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:57:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:04,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 18:57:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 18:57:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:04,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:04,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 18:57:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:04,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-12 18:57:04,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264545614] [2020-10-12 18:57:04,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:57:04,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:57:04,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271264844] [2020-10-12 18:57:04,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:57:04,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:57:04,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:57:04,453 INFO L87 Difference]: Start difference. First operand 10367 states and 15271 transitions. Second operand 12 states. [2020-10-12 18:57:04,664 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:08,301 INFO L93 Difference]: Finished difference Result 30104 states and 44078 transitions. [2020-10-12 18:57:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:57:08,301 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 174 [2020-10-12 18:57:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:08,361 INFO L225 Difference]: With dead ends: 30104 [2020-10-12 18:57:08,361 INFO L226 Difference]: Without dead ends: 20077 [2020-10-12 18:57:08,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:57:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20077 states. [2020-10-12 18:57:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20077 to 19029. [2020-10-12 18:57:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19029 states. [2020-10-12 18:57:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19029 states to 19029 states and 27897 transitions. [2020-10-12 18:57:09,517 INFO L78 Accepts]: Start accepts. Automaton has 19029 states and 27897 transitions. Word has length 174 [2020-10-12 18:57:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:09,517 INFO L479 AbstractCegarLoop]: Abstraction has 19029 states and 27897 transitions. [2020-10-12 18:57:09,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:57:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 19029 states and 27897 transitions. [2020-10-12 18:57:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 18:57:09,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:09,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:09,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:57:09,526 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:09,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1552739104, now seen corresponding path program 1 times [2020-10-12 18:57:09,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:09,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733721821] [2020-10-12 18:57:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:09,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-12 18:57:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:57:14,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,750 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:14,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:14,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:14,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:14,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:14,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:57:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:57:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:57:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:57:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:57:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:57:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:14,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:57:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:14,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:57:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:57:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:57:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:14,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:14,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:57:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:14,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:57:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:14,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-12 18:57:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:14,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:14,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:14,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:57:14,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:14,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:57:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:14,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:15,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:15,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:15,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:57:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:15,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:15,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:15,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:15,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:15,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:15,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:15,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:15,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 18:57:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:15,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:15,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:15,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:15,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:15,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:15,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:15,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:15,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:15,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 18:57:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:15,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:15,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:15,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:15,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-12 18:57:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:15,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:15,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:15,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:15,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:57:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 18:57:15,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733721821] [2020-10-12 18:57:15,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:57:15,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:57:15,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048653468] [2020-10-12 18:57:15,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:57:15,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:15,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:57:15,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:57:15,057 INFO L87 Difference]: Start difference. First operand 19029 states and 27897 transitions. Second operand 12 states. [2020-10-12 18:57:15,242 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:19,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:19,702 INFO L93 Difference]: Finished difference Result 56780 states and 82667 transitions. [2020-10-12 18:57:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:57:19,703 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-10-12 18:57:19,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:19,824 INFO L225 Difference]: With dead ends: 56780 [2020-10-12 18:57:19,824 INFO L226 Difference]: Without dead ends: 38095 [2020-10-12 18:57:19,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:57:19,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38095 states. [2020-10-12 18:57:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38095 to 35230. [2020-10-12 18:57:23,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35230 states. [2020-10-12 18:57:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35230 states to 35230 states and 51281 transitions. [2020-10-12 18:57:23,131 INFO L78 Accepts]: Start accepts. Automaton has 35230 states and 51281 transitions. Word has length 175 [2020-10-12 18:57:23,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:23,131 INFO L479 AbstractCegarLoop]: Abstraction has 35230 states and 51281 transitions. [2020-10-12 18:57:23,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:57:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 35230 states and 51281 transitions. [2020-10-12 18:57:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-12 18:57:23,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:23,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:23,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:57:23,147 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:23,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:23,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1887170390, now seen corresponding path program 1 times [2020-10-12 18:57:23,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:23,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137672399] [2020-10-12 18:57:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:23,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:57:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,384 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:28,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:57:28,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:28,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:57:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:57:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:57:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:57:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:57:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:28,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:57:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 18:57:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:57:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:28,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:57:28,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:57:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:57:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:28,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:28,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:57:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:57:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-12 18:57:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:57:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:28,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 18:57:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-12 18:57:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 18:57:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 18:57:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:28,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:28,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:28,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:28,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:28,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:28,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:57:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:28,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 18:57:28,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137672399] [2020-10-12 18:57:28,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:57:28,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:57:28,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707587678] [2020-10-12 18:57:28,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:57:28,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:28,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:57:28,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:57:28,704 INFO L87 Difference]: Start difference. First operand 35230 states and 51281 transitions. Second operand 12 states. [2020-10-12 18:57:28,906 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:35,138 INFO L93 Difference]: Finished difference Result 103929 states and 149980 transitions. [2020-10-12 18:57:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:57:35,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2020-10-12 18:57:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:35,335 INFO L225 Difference]: With dead ends: 103929 [2020-10-12 18:57:35,336 INFO L226 Difference]: Without dead ends: 68879 [2020-10-12 18:57:35,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:57:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68879 states. [2020-10-12 18:57:40,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68879 to 65994. [2020-10-12 18:57:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65994 states. [2020-10-12 18:57:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65994 states to 65994 states and 95082 transitions. [2020-10-12 18:57:41,042 INFO L78 Accepts]: Start accepts. Automaton has 65994 states and 95082 transitions. Word has length 176 [2020-10-12 18:57:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:41,043 INFO L479 AbstractCegarLoop]: Abstraction has 65994 states and 95082 transitions. [2020-10-12 18:57:41,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:57:41,043 INFO L276 IsEmpty]: Start isEmpty. Operand 65994 states and 95082 transitions. [2020-10-12 18:57:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-12 18:57:41,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:41,058 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:41,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:57:41,058 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:41,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:41,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1963130578, now seen corresponding path program 1 times [2020-10-12 18:57:41,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:41,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628083661] [2020-10-12 18:57:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:41,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:41,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:41,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:41,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:41,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-12 18:57:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:57:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,286 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:46,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:46,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:46,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:57:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:46,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:57:46,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:57:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:57:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:46,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:57:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:46,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:46,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:57:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:46,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:57:46,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:57:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:46,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:46,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:57:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:46,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:46,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:57:46,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:57:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:46,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:46,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:57:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:46,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:46,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 18:57:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:46,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:57:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:57:46,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 18:57:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 18:57:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 18:57:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:46,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 18:57:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:46,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 18:57:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:46,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:46,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 18:57:46,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628083661] [2020-10-12 18:57:46,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:57:46,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:57:46,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583756325] [2020-10-12 18:57:46,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:57:46,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:46,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:57:46,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:57:46,606 INFO L87 Difference]: Start difference. First operand 65994 states and 95082 transitions. Second operand 12 states. [2020-10-12 18:57:46,815 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:47,321 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-12 18:57:56,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:56,685 INFO L93 Difference]: Finished difference Result 199285 states and 285245 transitions. [2020-10-12 18:57:56,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:57:56,686 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 177 [2020-10-12 18:57:56,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:56,987 INFO L225 Difference]: With dead ends: 199285 [2020-10-12 18:57:56,987 INFO L226 Difference]: Without dead ends: 133723 [2020-10-12 18:57:57,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:57:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133723 states.