/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:30:14,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:30:14,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:30:14,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:30:14,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:30:14,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:30:14,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:30:14,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:30:14,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:30:14,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:30:14,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:30:14,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:30:14,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:30:14,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:30:14,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:30:14,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:30:14,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:30:14,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:30:14,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:30:14,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:30:14,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:30:14,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:30:14,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:30:14,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:30:14,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:30:14,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:30:14,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:30:14,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:30:14,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:30:14,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:30:14,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:30:14,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:30:14,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:30:14,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:30:14,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:30:14,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:30:14,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:30:14,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:30:14,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:30:14,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:30:14,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:30:14,345 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:30:14,367 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:30:14,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:30:14,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:30:14,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:30:14,369 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:30:14,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:30:14,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:30:14,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:30:14,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:30:14,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:30:14,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:30:14,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:30:14,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:30:14,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:30:14,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:30:14,371 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:30:14,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:30:14,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:30:14,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:30:14,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:30:14,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:30:14,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:30:14,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:30:14,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:30:14,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:30:14,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:30:14,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:30:14,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:30:14,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:30:14,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:30:14,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:30:14,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:30:14,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:30:14,732 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:30:14,732 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:30:14,733 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:30:14,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e26915e52/2dab81c7c31c4b979e12ff6563f02605/FLAG466415227 [2020-10-15 02:30:15,344 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:30:15,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:30:15,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e26915e52/2dab81c7c31c4b979e12ff6563f02605/FLAG466415227 [2020-10-15 02:30:15,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e26915e52/2dab81c7c31c4b979e12ff6563f02605 [2020-10-15 02:30:15,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:30:15,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:30:15,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:30:15,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:30:15,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:30:15,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:30:15" (1/1) ... [2020-10-15 02:30:15,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29df31b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:15, skipping insertion in model container [2020-10-15 02:30:15,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:30:15" (1/1) ... [2020-10-15 02:30:15,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:30:15,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:30:16,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:30:16,091 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:30:16,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:30:16,197 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:30:16,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16 WrapperNode [2020-10-15 02:30:16,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:30:16,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:30:16,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:30:16,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:30:16,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... [2020-10-15 02:30:16,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:30:16,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:30:16,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:30:16,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:30:16,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:30:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:30:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:30:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:30:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:30:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:30:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:30:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:30:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:30:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:30:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:30:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:30:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:30:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:30:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:30:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:30:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:30:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:30:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:30:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:30:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:30:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:30:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:30:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:30:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:30:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:30:16,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:30:16,991 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:30:16,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:30:16 BoogieIcfgContainer [2020-10-15 02:30:16,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:30:16,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:30:16,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:30:17,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:30:17,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:30:15" (1/3) ... [2020-10-15 02:30:17,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afd508f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:30:17, skipping insertion in model container [2020-10-15 02:30:17,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:30:16" (2/3) ... [2020-10-15 02:30:17,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afd508f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:30:17, skipping insertion in model container [2020-10-15 02:30:17,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:30:16" (3/3) ... [2020-10-15 02:30:17,007 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:30:17,019 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:30:17,028 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:30:17,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:30:17,065 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:30:17,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:30:17,066 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:30:17,066 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:30:17,067 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:30:17,067 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:30:17,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:30:17,067 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:30:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-10-15 02:30:17,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:30:17,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:17,105 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] [2020-10-15 02:30:17,105 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:17,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:17,111 INFO L82 PathProgramCache]: Analyzing trace with hash 320154634, now seen corresponding path program 1 times [2020-10-15 02:30:17,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:17,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841552149] [2020-10-15 02:30:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:17,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:17,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:30:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-15 02:30:17,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:17,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:30:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:30:18,025 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:30:18,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:30:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:18,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:18,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:30:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:18,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:18,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:30:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:30:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:18,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:18,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:30:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:18,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:18,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:30:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:18,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:18,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:30:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:18,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:30:18,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:30:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:18,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:30:18,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:18,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:18,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:18,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:18,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:18,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:18,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:18,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:18,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:18,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841552149] [2020-10-15 02:30:18,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:18,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:30:18,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666981224] [2020-10-15 02:30:18,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:30:18,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:18,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:30:18,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:30:18,364 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 8 states. [2020-10-15 02:30:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:19,407 INFO L93 Difference]: Finished difference Result 207 states and 305 transitions. [2020-10-15 02:30:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:30:19,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 02:30:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:19,423 INFO L225 Difference]: With dead ends: 207 [2020-10-15 02:30:19,423 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 02:30:19,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:30:19,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 02:30:19,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-15 02:30:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-15 02:30:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 185 transitions. [2020-10-15 02:30:19,483 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 185 transitions. Word has length 67 [2020-10-15 02:30:19,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:19,483 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 185 transitions. [2020-10-15 02:30:19,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:30:19,484 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 185 transitions. [2020-10-15 02:30:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:30:19,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:19,487 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] [2020-10-15 02:30:19,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:30:19,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:19,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1858494664, now seen corresponding path program 1 times [2020-10-15 02:30:19,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:19,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021151633] [2020-10-15 02:30:19,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:19,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:30:20,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-15 02:30:20,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:30:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:30:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:20,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:20,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:30:20,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:20,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:30:20,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:30:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:20,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:20,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:30:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:30:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:20,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:30:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:20,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:30:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:20,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:30:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:20,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:30:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:20,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:20,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:20,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:20,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:20,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:20,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021151633] [2020-10-15 02:30:20,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:20,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:30:20,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199952100] [2020-10-15 02:30:20,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:30:20,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:20,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:30:20,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:30:20,605 INFO L87 Difference]: Start difference. First operand 124 states and 185 transitions. Second operand 14 states. [2020-10-15 02:30:20,798 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:30:20,973 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:30:21,319 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:30:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:22,536 INFO L93 Difference]: Finished difference Result 205 states and 297 transitions. [2020-10-15 02:30:22,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:22,537 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-15 02:30:22,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:22,540 INFO L225 Difference]: With dead ends: 205 [2020-10-15 02:30:22,540 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 02:30:22,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:30:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 02:30:22,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-15 02:30:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-15 02:30:22,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 154 transitions. [2020-10-15 02:30:22,563 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 154 transitions. Word has length 67 [2020-10-15 02:30:22,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:22,563 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 154 transitions. [2020-10-15 02:30:22,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:30:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 154 transitions. [2020-10-15 02:30:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:30:22,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:22,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:22,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:30:22,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:22,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:22,567 INFO L82 PathProgramCache]: Analyzing trace with hash 709741567, now seen corresponding path program 1 times [2020-10-15 02:30:22,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:22,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840817012] [2020-10-15 02:30:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:22,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:24,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:27,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:30:27,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:30:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-15 02:30:27,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:27,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:30:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 02:30:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:30:27,837 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:30:27,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:27,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:27,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:27,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:30:27,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:27,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:27,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:27,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:27,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:27,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:30:27,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:27,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:30:27,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:27,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:30:27,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:30:27,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:30:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:27,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:27,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:27,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:27,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:27,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:27,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:27,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:27,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:30:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:27,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:27,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:27,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:27,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:27,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:27,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:27,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:27,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:30:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:27,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:28,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:28,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:28,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:28,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:30:28,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:28,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:28,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:28,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:28,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:28,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:28,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:30:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:28,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:28,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:28,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:28,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:28,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:28,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:28,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:28,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:28,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:28,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:28,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:28,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:28,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:28,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:28,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:28,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:28,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:28,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:30:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:28,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:28,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:28,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:28,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:28,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:30:28,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:28,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:28,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:28,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:30:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:28,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:28,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:28,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:28,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:28,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:28,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:28,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:28,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:28,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840817012] [2020-10-15 02:30:28,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:28,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:30:28,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351939663] [2020-10-15 02:30:28,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:30:28,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:28,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:30:28,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:30:28,204 INFO L87 Difference]: Start difference. First operand 124 states and 154 transitions. Second operand 11 states. [2020-10-15 02:30:28,359 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:30:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:30,523 INFO L93 Difference]: Finished difference Result 268 states and 356 transitions. [2020-10-15 02:30:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:30:30,525 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-15 02:30:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:30,531 INFO L225 Difference]: With dead ends: 268 [2020-10-15 02:30:30,531 INFO L226 Difference]: Without dead ends: 193 [2020-10-15 02:30:30,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:30:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-15 02:30:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2020-10-15 02:30:30,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-15 02:30:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 248 transitions. [2020-10-15 02:30:30,596 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 248 transitions. Word has length 97 [2020-10-15 02:30:30,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:30,598 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 248 transitions. [2020-10-15 02:30:30,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:30:30,599 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 248 transitions. [2020-10-15 02:30:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:30:30,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:30,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:30,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:30:30,610 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:30,610 INFO L82 PathProgramCache]: Analyzing trace with hash -884543115, now seen corresponding path program 1 times [2020-10-15 02:30:30,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:30,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412580469] [2020-10-15 02:30:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:30:35,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:30:35,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:30:35,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 02:30:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:30:35,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:35,795 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:30:35,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:35,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:35,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:35,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:35,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:30:35,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:30:35,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:30:35,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:35,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:30:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:35,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:35,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:35,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:35,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:30:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:35,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:35,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:35,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:35,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:35,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:30:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:35,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:35,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:35,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:35,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:35,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:30:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:35,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:35,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:35,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:35,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:35,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:35,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:35,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:35,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:35,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:35,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:36,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:36,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:36,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:30:36,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:36,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:36,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:36,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:30:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:36,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:36,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:36,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:36,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:36,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:36,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:30:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:36,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:36,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:36,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:36,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:36,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:36,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:36,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412580469] [2020-10-15 02:30:36,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:36,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:30:36,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260309178] [2020-10-15 02:30:36,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:30:36,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:36,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:30:36,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:30:36,095 INFO L87 Difference]: Start difference. First operand 191 states and 248 transitions. Second operand 11 states. [2020-10-15 02:30:36,258 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:30:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:37,903 INFO L93 Difference]: Finished difference Result 463 states and 630 transitions. [2020-10-15 02:30:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:30:37,903 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-15 02:30:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:37,911 INFO L225 Difference]: With dead ends: 463 [2020-10-15 02:30:37,912 INFO L226 Difference]: Without dead ends: 321 [2020-10-15 02:30:37,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:30:37,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-15 02:30:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-10-15 02:30:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-15 02:30:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 426 transitions. [2020-10-15 02:30:37,985 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 426 transitions. Word has length 97 [2020-10-15 02:30:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:37,988 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 426 transitions. [2020-10-15 02:30:37,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:30:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 426 transitions. [2020-10-15 02:30:37,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:30:37,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:37,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:37,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:30:37,991 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:37,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:37,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1031068479, now seen corresponding path program 1 times [2020-10-15 02:30:37,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:37,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760515017] [2020-10-15 02:30:37,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:38,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:38,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:39,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:42,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:42,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:30:42,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:30:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4839 [2020-10-15 02:30:42,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:42,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:30:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:30:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:30:42,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:43,070 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:30:43,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:43,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:30:43,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:43,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:43,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:30:43,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:30:43,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:30:43,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:43,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:30:43,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:43,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:30:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:43,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:43,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:30:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:30:43,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:43,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:30:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:43,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:30:43,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:30:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:43,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:30:43,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:43,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:43,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:43,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:43,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:43,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:30:43,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:43,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:43,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:43,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:43,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:30:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:30:43,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:43,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:43,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:30:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:43,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:43,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:43,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:43,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:43,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:30:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:30:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:30:43,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760515017] [2020-10-15 02:30:43,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:43,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-15 02:30:43,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039057251] [2020-10-15 02:30:43,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 02:30:43,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:43,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 02:30:43,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:30:43,599 INFO L87 Difference]: Start difference. First operand 319 states and 426 transitions. Second operand 21 states. [2020-10-15 02:30:43,832 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:30:43,985 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:30:44,123 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:30:44,265 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:30:44,410 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:30:46,727 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:30:46,850 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:30:46,970 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:30:51,188 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:30:51,326 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:30:51,551 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:30:51,703 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:30:56,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:56,371 INFO L93 Difference]: Finished difference Result 3917 states and 5555 transitions. [2020-10-15 02:30:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-10-15 02:30:56,372 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97 [2020-10-15 02:30:56,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:56,409 INFO L225 Difference]: With dead ends: 3917 [2020-10-15 02:30:56,409 INFO L226 Difference]: Without dead ends: 3647 [2020-10-15 02:30:56,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5317 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=2535, Invalid=12471, Unknown=0, NotChecked=0, Total=15006 [2020-10-15 02:30:56,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2020-10-15 02:30:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3623. [2020-10-15 02:30:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3623 states. [2020-10-15 02:30:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 5082 transitions. [2020-10-15 02:30:56,770 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 5082 transitions. Word has length 97 [2020-10-15 02:30:56,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:56,771 INFO L479 AbstractCegarLoop]: Abstraction has 3623 states and 5082 transitions. [2020-10-15 02:30:56,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 02:30:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 5082 transitions. [2020-10-15 02:30:56,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:30:56,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:56,773 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] [2020-10-15 02:30:56,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:30:56,773 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:56,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:56,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1932576015, now seen corresponding path program 1 times [2020-10-15 02:30:56,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:56,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672266999] [2020-10-15 02:30:56,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:56,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:56,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:56,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:58,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:31:01,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:31:01,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 02:31:01,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:31:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:31:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:31:01,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,020 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:31:02,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:02,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:31:02,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:31:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:31:02,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:31:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:31:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:02,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:31:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:02,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:31:02,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:31:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:02,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:31:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:02,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:31:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:31:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:02,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:02,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:02,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:31:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:02,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:02,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:02,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:31:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:02,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:31:02,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:02,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:02,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:31:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:02,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:02,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:02,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:31:02,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:31:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:02,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:02,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:31:02,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:02,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:31:02,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672266999] [2020-10-15 02:31:02,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:02,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:31:02,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005497605] [2020-10-15 02:31:02,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:31:02,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:02,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:31:02,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:31:02,448 INFO L87 Difference]: Start difference. First operand 3623 states and 5082 transitions. Second operand 13 states. [2020-10-15 02:31:02,597 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:31:03,184 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:31:05,394 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:31:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:06,909 INFO L93 Difference]: Finished difference Result 16943 states and 23894 transitions. [2020-10-15 02:31:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-15 02:31:06,911 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 99 [2020-10-15 02:31:06,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:06,994 INFO L225 Difference]: With dead ends: 16943 [2020-10-15 02:31:06,994 INFO L226 Difference]: Without dead ends: 13369 [2020-10-15 02:31:07,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:31:07,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13369 states. [2020-10-15 02:31:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13369 to 13363. [2020-10-15 02:31:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13363 states. [2020-10-15 02:31:08,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 18542 transitions. [2020-10-15 02:31:08,039 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 18542 transitions. Word has length 99 [2020-10-15 02:31:08,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:08,040 INFO L479 AbstractCegarLoop]: Abstraction has 13363 states and 18542 transitions. [2020-10-15 02:31:08,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:31:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 18542 transitions. [2020-10-15 02:31:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:31:08,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:08,043 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] [2020-10-15 02:31:08,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:31:08,043 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 644873559, now seen corresponding path program 1 times [2020-10-15 02:31:08,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:08,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569775856] [2020-10-15 02:31:08,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:08,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:08,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:08,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:09,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:11,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3435 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:31:11,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:11,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:11,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:11,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:11,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:11,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:11,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:11,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:11,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:11,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:11,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:31:11,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:31:11,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:11,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:11,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:31:11,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:11,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:31:11,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:31:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:11,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:11,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:11,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:11,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:11,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:11,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:11,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:11,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:11,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:11,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:11,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:11,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:31:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:11,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:11,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:11,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:11,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:11,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:31:11,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:11,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:11,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:11,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:31:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:11,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:11,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:11,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:11,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:11,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:31:11,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:11,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:11,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:11,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:11,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:31:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:12,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:12,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:12,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:12,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:31:12,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:12,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:12,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:12,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:31:12,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:31:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:12,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:12,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:12,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:12,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:12,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:31:12,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:12,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:12,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:12,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:12,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:12,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:12,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:31:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:12,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:12,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:12,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:12,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:31:12,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:12,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:12,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:31:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:12,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:12,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:12,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:31:12,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:12,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:12,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:12,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:31:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:31:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:31:12,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569775856] [2020-10-15 02:31:12,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:12,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 02:31:12,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782909009] [2020-10-15 02:31:12,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:31:12,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:12,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:31:12,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:31:12,335 INFO L87 Difference]: Start difference. First operand 13363 states and 18542 transitions. Second operand 19 states. [2020-10-15 02:31:12,579 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:31:12,781 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:31:12,964 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:31:13,101 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:31:13,239 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:31:13,805 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:31:14,374 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:31:15,133 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:31:15,503 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-15 02:31:19,037 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-15 02:31:19,344 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-15 02:31:20,106 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-15 02:31:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:23,864 INFO L93 Difference]: Finished difference Result 31407 states and 43920 transitions. [2020-10-15 02:31:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-10-15 02:31:23,864 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 99 [2020-10-15 02:31:23,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:24,002 INFO L225 Difference]: With dead ends: 31407 [2020-10-15 02:31:24,002 INFO L226 Difference]: Without dead ends: 18093 [2020-10-15 02:31:24,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3633 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1958, Invalid=8344, Unknown=0, NotChecked=0, Total=10302 [2020-10-15 02:31:24,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18093 states. [2020-10-15 02:31:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18093 to 16827. [2020-10-15 02:31:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16827 states. [2020-10-15 02:31:26,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16827 states to 16827 states and 23438 transitions. [2020-10-15 02:31:26,285 INFO L78 Accepts]: Start accepts. Automaton has 16827 states and 23438 transitions. Word has length 99 [2020-10-15 02:31:26,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:26,286 INFO L479 AbstractCegarLoop]: Abstraction has 16827 states and 23438 transitions. [2020-10-15 02:31:26,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:31:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand 16827 states and 23438 transitions. [2020-10-15 02:31:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:31:26,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:26,288 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] [2020-10-15 02:31:26,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:31:26,289 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1224014839, now seen corresponding path program 1 times [2020-10-15 02:31:26,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:26,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228218505] [2020-10-15 02:31:26,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:26,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:26,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:26,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:31:31,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:31:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:31:31,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:31:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:31:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:31:31,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:31,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:31,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:31:31,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:31:31,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:31:31,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:31:31,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:31:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:31:31,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:31:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:31,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:31,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:31,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:31:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:31,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:31,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:31,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:31,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:31,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:31:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:31,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:31,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:31,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:31:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:31,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:31:31,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:31:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:31:31,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:31:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:31,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:31,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:31,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:31:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:31,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:31,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:31,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:31,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:31:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:31,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:31,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:31,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:31,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:31:31,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:31,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:31:31,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228218505] [2020-10-15 02:31:31,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:31,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:31:31,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634424103] [2020-10-15 02:31:31,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:31:31,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:31,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:31:31,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:31:31,917 INFO L87 Difference]: Start difference. First operand 16827 states and 23438 transitions. Second operand 15 states. [2020-10-15 02:31:32,251 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-15 02:31:32,393 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:31:32,891 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-15 02:31:33,212 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-15 02:31:33,532 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-15 02:31:33,691 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-15 02:31:33,866 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-15 02:31:34,037 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-15 02:31:34,336 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-15 02:31:34,551 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-15 02:31:34,739 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-15 02:31:34,883 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-15 02:31:35,014 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-15 02:31:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:36,571 INFO L93 Difference]: Finished difference Result 39540 states and 54512 transitions. [2020-10-15 02:31:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:31:36,572 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-10-15 02:31:36,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:36,662 INFO L225 Difference]: With dead ends: 39540 [2020-10-15 02:31:36,663 INFO L226 Difference]: Without dead ends: 22762 [2020-10-15 02:31:36,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:31:36,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22762 states. [2020-10-15 02:31:37,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22762 to 16940. [2020-10-15 02:31:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16940 states. [2020-10-15 02:31:37,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16940 states to 16940 states and 23589 transitions. [2020-10-15 02:31:37,936 INFO L78 Accepts]: Start accepts. Automaton has 16940 states and 23589 transitions. Word has length 99 [2020-10-15 02:31:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:37,936 INFO L479 AbstractCegarLoop]: Abstraction has 16940 states and 23589 transitions. [2020-10-15 02:31:37,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:31:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 16940 states and 23589 transitions. [2020-10-15 02:31:37,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:31:37,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:37,939 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] [2020-10-15 02:31:37,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:31:37,939 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:37,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:37,939 INFO L82 PathProgramCache]: Analyzing trace with hash -997313259, now seen corresponding path program 1 times [2020-10-15 02:31:37,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:37,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821467629] [2020-10-15 02:31:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:37,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:38,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:38,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:38,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:38,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:40,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:42,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:31:42,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:31:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:31:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:42,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:31:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:31:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:31:42,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:43,116 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:31:43,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:43,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:31:43,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:43,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:43,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:43,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:31:43,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:31:43,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:31:43,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:43,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:31:43,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:31:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:43,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:43,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:31:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:43,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:31:43,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:31:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:43,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:43,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:31:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:43,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:31:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:43,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:43,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:43,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:31:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:43,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:31:43,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:43,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:43,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:31:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:43,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-15 02:31:43,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:43,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:43,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:43,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:43,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:31:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:43,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:43,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:43,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:43,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:43,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:43,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:31:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:31:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:31:43,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821467629] [2020-10-15 02:31:43,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:43,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 02:31:43,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995028449] [2020-10-15 02:31:43,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:31:43,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:43,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:31:43,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:31:43,707 INFO L87 Difference]: Start difference. First operand 16940 states and 23589 transitions. Second operand 19 states. [2020-10-15 02:31:44,064 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-10-15 02:31:44,487 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:31:44,630 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:31:44,884 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:31:45,171 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 02:31:45,631 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:31:45,964 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 02:31:46,259 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:31:46,566 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:31:49,441 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:31:49,589 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-15 02:31:49,725 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:31:49,854 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:31:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:56,990 INFO L93 Difference]: Finished difference Result 45519 states and 65530 transitions. [2020-10-15 02:31:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-10-15 02:31:56,991 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 99 [2020-10-15 02:31:56,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:57,154 INFO L225 Difference]: With dead ends: 45519 [2020-10-15 02:31:57,154 INFO L226 Difference]: Without dead ends: 29913 [2020-10-15 02:31:57,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3507 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=2067, Invalid=8645, Unknown=0, NotChecked=0, Total=10712 [2020-10-15 02:31:57,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29913 states. [2020-10-15 02:31:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29913 to 25992. [2020-10-15 02:31:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25992 states. [2020-10-15 02:31:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25992 states to 25992 states and 36187 transitions. [2020-10-15 02:31:59,302 INFO L78 Accepts]: Start accepts. Automaton has 25992 states and 36187 transitions. Word has length 99 [2020-10-15 02:31:59,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:59,303 INFO L479 AbstractCegarLoop]: Abstraction has 25992 states and 36187 transitions. [2020-10-15 02:31:59,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:31:59,303 INFO L276 IsEmpty]: Start isEmpty. Operand 25992 states and 36187 transitions. [2020-10-15 02:31:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:31:59,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:59,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:31:59,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:31:59,306 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:59,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1238532471, now seen corresponding path program 1 times [2020-10-15 02:31:59,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:59,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166830749] [2020-10-15 02:31:59,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:59,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:59,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:59,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:03,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:32:04,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-15 02:32:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:04,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:32:04,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:32:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:32:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:32:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:04,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:04,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:32:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:32:04,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:04,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:32:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:32:04,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:32:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:04,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:32:04,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:04,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:32:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:04,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:32:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:04,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:32:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:04,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:32:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:04,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:32:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:04,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:32:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:04,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:04,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:32:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:32:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:04,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:32:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:32:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:32:04,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166830749] [2020-10-15 02:32:04,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:04,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 02:32:04,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917002305] [2020-10-15 02:32:04,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:32:04,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:04,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:32:04,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:32:04,876 INFO L87 Difference]: Start difference. First operand 25992 states and 36187 transitions. Second operand 19 states. [2020-10-15 02:32:05,284 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:32:05,416 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:32:05,562 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:32:06,812 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:32:09,480 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-15 02:32:09,622 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:32:09,890 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:32:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:32:15,632 INFO L93 Difference]: Finished difference Result 39829 states and 55709 transitions. [2020-10-15 02:32:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-15 02:32:15,633 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 99 [2020-10-15 02:32:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:32:15,770 INFO L225 Difference]: With dead ends: 39829 [2020-10-15 02:32:15,770 INFO L226 Difference]: Without dead ends: 37441 [2020-10-15 02:32:15,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2827 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1672, Invalid=6884, Unknown=0, NotChecked=0, Total=8556 [2020-10-15 02:32:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37441 states. [2020-10-15 02:32:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37441 to 34480. [2020-10-15 02:32:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34480 states. [2020-10-15 02:32:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34480 states to 34480 states and 48039 transitions. [2020-10-15 02:32:18,566 INFO L78 Accepts]: Start accepts. Automaton has 34480 states and 48039 transitions. Word has length 99 [2020-10-15 02:32:18,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:18,567 INFO L479 AbstractCegarLoop]: Abstraction has 34480 states and 48039 transitions. [2020-10-15 02:32:18,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:32:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 34480 states and 48039 transitions. [2020-10-15 02:32:18,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:32:18,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:18,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:32:18,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:32:18,571 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:18,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:18,571 INFO L82 PathProgramCache]: Analyzing trace with hash 42925883, now seen corresponding path program 1 times [2020-10-15 02:32:18,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:18,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605172924] [2020-10-15 02:32:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:18,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:18,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:18,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:32:23,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:32:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:32:23,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 02:32:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 02:32:23,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:32:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:32:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:32:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:23,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:23,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:23,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:32:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:23,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:32:23,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:32:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:32:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:23,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:23,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:32:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:32:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:23,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:32:23,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:23,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:23,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:32:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:23,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:23,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:23,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:32:23,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:23,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:23,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:32:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:32:23,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605172924] [2020-10-15 02:32:23,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:23,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:32:23,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489657463] [2020-10-15 02:32:23,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:32:23,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:23,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:32:23,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:32:23,984 INFO L87 Difference]: Start difference. First operand 34480 states and 48039 transitions. Second operand 11 states. [2020-10-15 02:32:24,136 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:32:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:32:28,854 INFO L93 Difference]: Finished difference Result 99184 states and 138678 transitions. [2020-10-15 02:32:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:32:28,855 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-15 02:32:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:32:29,263 INFO L225 Difference]: With dead ends: 99184 [2020-10-15 02:32:29,263 INFO L226 Difference]: Without dead ends: 64785 [2020-10-15 02:32:29,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:32:29,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64785 states. [2020-10-15 02:32:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64785 to 64756. [2020-10-15 02:32:33,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64756 states. [2020-10-15 02:32:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64756 states to 64756 states and 89224 transitions. [2020-10-15 02:32:33,565 INFO L78 Accepts]: Start accepts. Automaton has 64756 states and 89224 transitions. Word has length 100 [2020-10-15 02:32:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:33,565 INFO L479 AbstractCegarLoop]: Abstraction has 64756 states and 89224 transitions. [2020-10-15 02:32:33,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:32:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 64756 states and 89224 transitions. [2020-10-15 02:32:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:32:33,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:33,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:32:33,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:32:33,567 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:33,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:33,568 INFO L82 PathProgramCache]: Analyzing trace with hash 539526255, now seen corresponding path program 1 times [2020-10-15 02:32:33,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:33,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803691903] [2020-10-15 02:32:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:33,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:33,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:32:38,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:32:38,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:32:38,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:32:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:32:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:32:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:38,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:38,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:32:38,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:32:38,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:32:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:38,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:32:38,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:38,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:38,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:32:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:38,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:32:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:32:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:38,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:38,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:32:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:38,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:32:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:38,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:32:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:38,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:38,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:32:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:38,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:38,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:38,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:32:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:38,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:38,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:32:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:38,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:32:38,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803691903] [2020-10-15 02:32:38,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:38,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:32:38,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987530104] [2020-10-15 02:32:38,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:32:38,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:38,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:32:38,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:32:38,981 INFO L87 Difference]: Start difference. First operand 64756 states and 89224 transitions. Second operand 15 states. [2020-10-15 02:32:39,273 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-15 02:32:39,400 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:32:39,552 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:32:39,976 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2020-10-15 02:32:40,103 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-15 02:32:40,303 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:32:40,454 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:32:40,643 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:32:40,806 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:32:41,063 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 02:32:41,209 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-15 02:32:41,381 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:32:41,589 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:32:41,830 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:32:45,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:32:45,542 INFO L93 Difference]: Finished difference Result 130970 states and 180922 transitions. [2020-10-15 02:32:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:32:45,543 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-15 02:32:45,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:32:45,725 INFO L225 Difference]: With dead ends: 130970 [2020-10-15 02:32:45,726 INFO L226 Difference]: Without dead ends: 66292 [2020-10-15 02:32:45,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:32:45,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66292 states. [2020-10-15 02:32:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66292 to 64756. [2020-10-15 02:32:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64756 states. [2020-10-15 02:32:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64756 states to 64756 states and 88709 transitions. [2020-10-15 02:32:49,860 INFO L78 Accepts]: Start accepts. Automaton has 64756 states and 88709 transitions. Word has length 100 [2020-10-15 02:32:49,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:49,861 INFO L479 AbstractCegarLoop]: Abstraction has 64756 states and 88709 transitions. [2020-10-15 02:32:49,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:32:49,861 INFO L276 IsEmpty]: Start isEmpty. Operand 64756 states and 88709 transitions. [2020-10-15 02:32:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:32:49,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:49,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:32:49,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:32:49,862 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:49,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:49,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1911333553, now seen corresponding path program 1 times [2020-10-15 02:32:49,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:49,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738715781] [2020-10-15 02:32:49,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:49,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:49,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:53,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:53,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:32:53,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:32:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4093 [2020-10-15 02:32:53,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:53,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:32:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:32:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:54,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:32:54,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:32:54,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:32:54,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:54,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:54,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:32:54,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:32:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:54,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:32:54,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:54,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:32:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:54,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:32:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:54,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:32:54,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:32:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:54,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:32:54,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:54,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:32:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:54,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:32:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:32:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:54,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:32:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:32:54,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:54,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:32:54,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1738715781] [2020-10-15 02:32:54,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:54,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:32:54,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004219000] [2020-10-15 02:32:54,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:32:54,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:54,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:32:54,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:32:54,312 INFO L87 Difference]: Start difference. First operand 64756 states and 88709 transitions. Second operand 11 states. [2020-10-15 02:32:54,455 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:33:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:33:05,952 INFO L93 Difference]: Finished difference Result 187263 states and 257233 transitions. [2020-10-15 02:33:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:33:05,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-15 02:33:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:33:06,322 INFO L225 Difference]: With dead ends: 187263 [2020-10-15 02:33:06,322 INFO L226 Difference]: Without dead ends: 122609 [2020-10-15 02:33:06,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:33:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122609 states. [2020-10-15 02:33:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122609 to 122598. [2020-10-15 02:33:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122598 states. [2020-10-15 02:33:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122598 states to 122598 states and 165525 transitions. [2020-10-15 02:33:16,448 INFO L78 Accepts]: Start accepts. Automaton has 122598 states and 165525 transitions. Word has length 100 [2020-10-15 02:33:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:33:16,449 INFO L479 AbstractCegarLoop]: Abstraction has 122598 states and 165525 transitions. [2020-10-15 02:33:16,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:33:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 122598 states and 165525 transitions. [2020-10-15 02:33:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:33:16,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:33:16,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:33:16,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:33:16,451 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:33:16,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:33:16,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1929402363, now seen corresponding path program 1 times [2020-10-15 02:33:16,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:33:16,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034629571] [2020-10-15 02:33:16,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:33:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:16,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:16,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:33:17,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:33:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-10-15 02:33:17,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:33:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:33:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:33:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:33:17,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:33:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:33:17,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:33:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:33:17,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:17,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:33:17,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:33:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:17,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:17,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:33:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:17,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:33:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:17,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:17,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:17,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:17,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:33:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:33:17,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:33:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:17,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:33:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:33:17,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034629571] [2020-10-15 02:33:17,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:33:17,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:33:17,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033949535] [2020-10-15 02:33:17,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:33:17,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:33:17,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:33:17,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:33:17,561 INFO L87 Difference]: Start difference. First operand 122598 states and 165525 transitions. Second operand 11 states. [2020-10-15 02:33:17,722 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:33:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:33:35,320 INFO L93 Difference]: Finished difference Result 285714 states and 388363 transitions. [2020-10-15 02:33:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:33:35,321 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-15 02:33:35,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:33:35,915 INFO L225 Difference]: With dead ends: 285714 [2020-10-15 02:33:35,916 INFO L226 Difference]: Without dead ends: 185043 [2020-10-15 02:33:36,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:33:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185043 states.