/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-var-start-time.5.2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:38:28,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:38:28,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:38:28,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:38:28,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:38:28,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:38:28,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:38:28,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:38:28,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:38:28,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:38:28,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:38:28,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:38:28,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:38:28,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:38:28,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:38:28,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:38:28,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:38:28,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:38:28,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:38:28,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:38:28,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:38:28,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:38:28,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:38:28,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:38:28,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:38:28,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:38:28,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:38:28,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:38:28,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:38:28,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:38:28,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:38:28,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:38:28,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:38:28,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:38:28,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:38:28,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:38:28,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:38:28,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:38:28,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:38:28,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:38:28,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:38:28,533 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 02:38:28,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:38:28,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:38:28,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:38:28,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:38:28,576 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:38:28,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:38:28,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:38:28,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:38:28,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:38:28,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:38:28,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:38:28,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:38:28,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:38:28,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:38:28,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:38:28,579 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:38:28,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:38:28,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:38:28,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:38:28,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:38:28,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:38:28,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:38:28,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:38:28,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:38:28,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:38:28,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:38:28,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:38:28,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:38:28,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:38:28,582 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 02:38:28,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:38:28,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:38:28,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:38:28,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:38:28,879 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:38:28,880 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-15 02:38:28,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7892f863d/1d06618b40bc400e86b4514c0516d67a/FLAG77f2cbf38 [2020-10-15 02:38:29,415 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:38:29,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-15 02:38:29,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7892f863d/1d06618b40bc400e86b4514c0516d67a/FLAG77f2cbf38 [2020-10-15 02:38:29,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7892f863d/1d06618b40bc400e86b4514c0516d67a [2020-10-15 02:38:29,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:38:29,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:38:29,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:38:29,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:38:29,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:38:29,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:29" (1/1) ... [2020-10-15 02:38:29,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a47163c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:29, skipping insertion in model container [2020-10-15 02:38:29,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:29" (1/1) ... [2020-10-15 02:38:29,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:38:29,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:38:30,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:38:30,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:38:30,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:38:30,295 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:38:30,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30 WrapperNode [2020-10-15 02:38:30,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:38:30,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:38:30,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:38:30,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:38:30,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (1/1) ... [2020-10-15 02:38:30,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:38:30,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:38:30,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:38:30,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:38:30,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (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 02:38:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:38:31,218 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:38:31,218 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:38:31,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:31 BoogieIcfgContainer [2020-10-15 02:38:31,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:38:31,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:38:31,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:38:31,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:38:31,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:38:29" (1/3) ... [2020-10-15 02:38:31,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9678419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:31, skipping insertion in model container [2020-10-15 02:38:31,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:30" (2/3) ... [2020-10-15 02:38:31,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9678419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:31, skipping insertion in model container [2020-10-15 02:38:31,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:31" (3/3) ... [2020-10-15 02:38:31,233 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-15 02:38:31,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:38:31,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:38:31,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:38:31,286 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:38:31,287 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:38:31,287 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:38:31,287 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:38:31,287 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:38:31,288 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:38:31,288 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:38:31,288 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:38:31,310 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-10-15 02:38:31,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:38:31,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:31,322 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 02:38:31,323 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:31,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:31,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2072684470, now seen corresponding path program 1 times [2020-10-15 02:38:31,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:31,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119360405] [2020-10-15 02:38:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:31,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:31,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:38:31,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:31,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-15 02:38:31,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:31,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:31,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:38:31,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:31,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:38:32,222 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:38:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:32,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:38:32,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:32,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:32,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:32,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:38:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:32,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:32,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:38:32,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:38:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:32,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:32,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:38:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:32,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:32,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:38:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:32,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:32,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:32,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:38:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:32,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:32,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:38:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:32,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:32,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:38:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:32,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:32,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:32,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:32,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:32,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:32,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:32,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:32,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:32,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:32,503 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 02:38:32,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119360405] [2020-10-15 02:38:32,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:32,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:38:32,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137291579] [2020-10-15 02:38:32,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:38:32,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:32,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:38:32,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:38:32,531 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 8 states. [2020-10-15 02:38:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:33,740 INFO L93 Difference]: Finished difference Result 270 states and 400 transitions. [2020-10-15 02:38:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:38:33,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 02:38:33,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:33,756 INFO L225 Difference]: With dead ends: 270 [2020-10-15 02:38:33,756 INFO L226 Difference]: Without dead ends: 156 [2020-10-15 02:38:33,760 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 02:38:33,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-15 02:38:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2020-10-15 02:38:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-15 02:38:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 229 transitions. [2020-10-15 02:38:33,825 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 229 transitions. Word has length 67 [2020-10-15 02:38:33,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:33,826 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 229 transitions. [2020-10-15 02:38:33,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:38:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 229 transitions. [2020-10-15 02:38:33,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:38:33,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:33,830 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 02:38:33,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:38:33,831 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:33,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:33,832 INFO L82 PathProgramCache]: Analyzing trace with hash -683942796, now seen corresponding path program 1 times [2020-10-15 02:38:33,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:33,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584685313] [2020-10-15 02:38:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:33,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:38:34,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-15 02:38:34,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:38:34,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:38:34,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:38:34,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:34,755 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:38:34,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:34,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:34,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:34,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:34,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:34,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:38:34,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:34,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:34,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:38:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:34,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:34,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:34,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:38:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:34,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:34,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:38:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:34,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:34,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:34,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:34,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:38:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:34,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:34,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:34,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:34,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:38:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:34,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:34,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:34,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:34,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:34,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:34,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:34,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:34,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:35,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:38:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:35,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:35,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:35,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:35,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:35,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:35,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:35,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:35,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:35,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:35,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:38:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:38:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:35,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:35,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:35,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:35,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:35,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:35,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:35,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:38:35,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:38:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:35,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:35,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:35,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:35,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:35,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:35,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:35,120 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 02:38:35,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584685313] [2020-10-15 02:38:35,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:35,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:38:35,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745059273] [2020-10-15 02:38:35,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:38:35,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:35,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:38:35,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:38:35,158 INFO L87 Difference]: Start difference. First operand 151 states and 229 transitions. Second operand 14 states. [2020-10-15 02:38:35,401 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:38:35,579 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-15 02:38:35,816 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-15 02:38:36,001 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:38:37,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:37,743 INFO L93 Difference]: Finished difference Result 274 states and 406 transitions. [2020-10-15 02:38:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:38:37,744 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-15 02:38:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:37,749 INFO L225 Difference]: With dead ends: 274 [2020-10-15 02:38:37,749 INFO L226 Difference]: Without dead ends: 167 [2020-10-15 02:38:37,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:38:37,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-15 02:38:37,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2020-10-15 02:38:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-15 02:38:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 197 transitions. [2020-10-15 02:38:37,775 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 197 transitions. Word has length 67 [2020-10-15 02:38:37,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:37,775 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 197 transitions. [2020-10-15 02:38:37,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:38:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 197 transitions. [2020-10-15 02:38:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:38:37,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:37,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:38:37,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:38:37,780 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:37,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:37,781 INFO L82 PathProgramCache]: Analyzing trace with hash 129397197, now seen corresponding path program 1 times [2020-10-15 02:38:37,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:37,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724294307] [2020-10-15 02:38:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:37,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:37,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:38,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:38,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:39,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:42,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:42,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-15 02:38:42,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:38:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:38:42,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:42,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:42,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:38:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:38:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:38:42,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:38:43,104 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:38:43,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:43,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:38:43,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:38:43,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-15 02:38:43,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:38:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:38:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:38:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:43,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:43,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:43,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:43,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:38:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:43,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:38:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:38:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:43,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:43,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:38:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:43,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:38:43,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:43,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:38:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:43,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:38:43,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:38:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:43,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:38:43,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:38:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:43,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:43,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:43,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:38:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:38:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:43,685 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 02:38:43,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724294307] [2020-10-15 02:38:43,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:43,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 02:38:43,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433850687] [2020-10-15 02:38:43,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:38:43,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:43,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:38:43,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:38:43,688 INFO L87 Difference]: Start difference. First operand 151 states and 197 transitions. Second operand 19 states. [2020-10-15 02:38:44,147 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 140 [2020-10-15 02:38:44,325 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-15 02:38:44,493 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:38:44,678 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:38:45,044 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2020-10-15 02:38:45,299 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-15 02:38:45,561 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 02:38:46,109 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 02:38:46,894 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 02:38:47,874 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 02:38:48,521 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:38:49,426 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-15 02:38:49,583 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-15 02:38:49,750 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:38:50,075 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 145 [2020-10-15 02:38:50,211 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-15 02:38:51,373 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:38:51,870 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 02:38:52,898 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 02:38:53,441 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:38:54,487 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 02:38:54,924 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:38:55,886 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 02:38:56,266 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:38:57,291 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 02:38:57,572 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:38:58,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:58,214 INFO L93 Difference]: Finished difference Result 1361 states and 1951 transitions. [2020-10-15 02:38:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-10-15 02:38:58,214 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-15 02:38:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:58,232 INFO L225 Difference]: With dead ends: 1361 [2020-10-15 02:38:58,232 INFO L226 Difference]: Without dead ends: 1260 [2020-10-15 02:38:58,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4124 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2135, Invalid=9637, Unknown=0, NotChecked=0, Total=11772 [2020-10-15 02:38:58,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2020-10-15 02:38:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1185. [2020-10-15 02:38:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2020-10-15 02:38:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1726 transitions. [2020-10-15 02:38:58,368 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1726 transitions. Word has length 98 [2020-10-15 02:38:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:58,368 INFO L479 AbstractCegarLoop]: Abstraction has 1185 states and 1726 transitions. [2020-10-15 02:38:58,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:38:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1726 transitions. [2020-10-15 02:38:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:38:58,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:58,376 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 02:38:58,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:38:58,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1241424470, now seen corresponding path program 1 times [2020-10-15 02:38:58,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:58,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86496606] [2020-10-15 02:38:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:00,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:39:03,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:39:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:39:03,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:39:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:39:03,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,635 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:03,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:03,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:03,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:39:03,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:39:03,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:03,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:03,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:03,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:03,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:03,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:03,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:03,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:03,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:03,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:03,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:03,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:39:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:03,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:39:03,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:39:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:03,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:03,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:03,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:39:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:03,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:03,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:03,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:03,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:03,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:03,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:03,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:03,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:03,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:03,956 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 02:39:03,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86496606] [2020-10-15 02:39:03,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:03,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:03,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143311695] [2020-10-15 02:39:03,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:03,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:03,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:03,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:03,960 INFO L87 Difference]: Start difference. First operand 1185 states and 1726 transitions. Second operand 11 states. [2020-10-15 02:39:04,149 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:06,345 INFO L93 Difference]: Finished difference Result 3407 states and 4969 transitions. [2020-10-15 02:39:06,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:06,345 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-10-15 02:39:06,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:06,365 INFO L225 Difference]: With dead ends: 3407 [2020-10-15 02:39:06,365 INFO L226 Difference]: Without dead ends: 2272 [2020-10-15 02:39:06,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-10-15 02:39:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2171. [2020-10-15 02:39:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2171 states. [2020-10-15 02:39:06,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2171 states to 2171 states and 3160 transitions. [2020-10-15 02:39:06,544 INFO L78 Accepts]: Start accepts. Automaton has 2171 states and 3160 transitions. Word has length 99 [2020-10-15 02:39:06,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:06,545 INFO L479 AbstractCegarLoop]: Abstraction has 2171 states and 3160 transitions. [2020-10-15 02:39:06,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2171 states and 3160 transitions. [2020-10-15 02:39:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:39:06,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:06,549 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 02:39:06,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:39:06,550 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:06,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash -774167605, now seen corresponding path program 1 times [2020-10-15 02:39:06,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:06,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791745914] [2020-10-15 02:39:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-15 02:39:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:39:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,734 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:11,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:11,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:11,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:39:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:11,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:11,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:11,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:11,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:11,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:11,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:39:11,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:39:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:39:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:11,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:11,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:39:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:11,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:11,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:11,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:11,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:39:11,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:11,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:11,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:11,996 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 02:39:11,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791745914] [2020-10-15 02:39:11,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:11,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:11,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823107033] [2020-10-15 02:39:11,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:11,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:11,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:11,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:11,998 INFO L87 Difference]: Start difference. First operand 2171 states and 3160 transitions. Second operand 11 states. [2020-10-15 02:39:12,168 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:14,567 INFO L93 Difference]: Finished difference Result 6307 states and 9148 transitions. [2020-10-15 02:39:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:14,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-15 02:39:14,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:14,592 INFO L225 Difference]: With dead ends: 6307 [2020-10-15 02:39:14,592 INFO L226 Difference]: Without dead ends: 4186 [2020-10-15 02:39:14,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:14,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2020-10-15 02:39:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 4008. [2020-10-15 02:39:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4008 states. [2020-10-15 02:39:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5795 transitions. [2020-10-15 02:39:14,887 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5795 transitions. Word has length 100 [2020-10-15 02:39:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:14,887 INFO L479 AbstractCegarLoop]: Abstraction has 4008 states and 5795 transitions. [2020-10-15 02:39:14,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:14,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5795 transitions. [2020-10-15 02:39:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:39:14,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:14,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:14,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:39:14,891 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:14,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:14,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1298296402, now seen corresponding path program 1 times [2020-10-15 02:39:14,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:14,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287915918] [2020-10-15 02:39:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:14,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:14,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-15 02:39:18,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:39:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3669 [2020-10-15 02:39:18,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:39:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:39:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:18,726 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:18,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:18,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:18,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:18,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:18,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:18,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:18,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:18,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:39:18,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:18,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:18,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:18,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:18,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:18,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:18,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:18,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:18,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:18,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:18,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:18,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:18,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:18,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:18,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:39:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:18,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:18,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:18,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:39:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:18,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:39:18,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:18,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:18,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:39:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:18,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:18,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:18,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:18,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:18,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:18,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:18,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:18,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:19,024 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 02:39:19,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287915918] [2020-10-15 02:39:19,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:19,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:19,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762381768] [2020-10-15 02:39:19,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:19,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:19,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:19,028 INFO L87 Difference]: Start difference. First operand 4008 states and 5795 transitions. Second operand 11 states. [2020-10-15 02:39:19,245 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:21,807 INFO L93 Difference]: Finished difference Result 11644 states and 16761 transitions. [2020-10-15 02:39:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:21,807 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-15 02:39:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:21,853 INFO L225 Difference]: With dead ends: 11644 [2020-10-15 02:39:21,853 INFO L226 Difference]: Without dead ends: 7686 [2020-10-15 02:39:21,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:21,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7686 states. [2020-10-15 02:39:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7686 to 7376. [2020-10-15 02:39:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7376 states. [2020-10-15 02:39:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7376 states to 7376 states and 10575 transitions. [2020-10-15 02:39:22,384 INFO L78 Accepts]: Start accepts. Automaton has 7376 states and 10575 transitions. Word has length 101 [2020-10-15 02:39:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:22,386 INFO L479 AbstractCegarLoop]: Abstraction has 7376 states and 10575 transitions. [2020-10-15 02:39:22,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7376 states and 10575 transitions. [2020-10-15 02:39:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 02:39:22,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:22,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:22,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:39:22,389 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:22,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1797639697, now seen corresponding path program 1 times [2020-10-15 02:39:22,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:22,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272385683] [2020-10-15 02:39:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:22,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 02:39:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,414 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:23,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:23,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:23,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:23,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:23,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:23,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:23,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:39:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:23,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:23,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:23,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:23,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:23,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:39:23,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:23,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:23,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:23,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:23,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:39:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:23,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:23,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:23,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:39:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:23,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:23,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:23,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:39:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:23,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:23,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:23,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:23,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:23,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:23,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:23,663 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 02:39:23,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272385683] [2020-10-15 02:39:23,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:23,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:23,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526742165] [2020-10-15 02:39:23,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:23,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:23,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:23,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:23,665 INFO L87 Difference]: Start difference. First operand 7376 states and 10575 transitions. Second operand 11 states. [2020-10-15 02:39:23,851 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:26,595 INFO L93 Difference]: Finished difference Result 21428 states and 30521 transitions. [2020-10-15 02:39:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:26,595 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-15 02:39:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:26,682 INFO L225 Difference]: With dead ends: 21428 [2020-10-15 02:39:26,682 INFO L226 Difference]: Without dead ends: 14102 [2020-10-15 02:39:26,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14102 states. [2020-10-15 02:39:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14102 to 13572. [2020-10-15 02:39:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13572 states. [2020-10-15 02:39:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13572 states to 13572 states and 19203 transitions. [2020-10-15 02:39:27,703 INFO L78 Accepts]: Start accepts. Automaton has 13572 states and 19203 transitions. Word has length 102 [2020-10-15 02:39:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:27,704 INFO L479 AbstractCegarLoop]: Abstraction has 13572 states and 19203 transitions. [2020-10-15 02:39:27,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:27,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13572 states and 19203 transitions. [2020-10-15 02:39:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:39:27,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:27,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:27,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:39:27,708 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:27,708 INFO L82 PathProgramCache]: Analyzing trace with hash -59913968, now seen corresponding path program 1 times [2020-10-15 02:39:27,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:27,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80581837] [2020-10-15 02:39:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:28,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:28,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:28,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-15 02:39:28,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:39:28,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-15 02:39:28,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:28,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:39:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 02:39:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:39:28,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:28,963 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:28,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:28,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:28,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:28,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:28,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:28,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:28,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:28,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:28,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:28,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:28,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:39:28,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:28,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:28,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 02:39:28,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:29,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:29,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:29,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:29,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:39:29,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:39:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:29,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:39:29,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:39:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:29,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:39:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:29,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:39:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:39:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:39:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:29,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:39:29,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:39:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:29,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:39:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:29,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:29,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:39:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:39:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:29,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:29,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:29,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:29,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:29,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:29,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:29,404 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 02:39:29,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80581837] [2020-10-15 02:39:29,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:29,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-15 02:39:29,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907933679] [2020-10-15 02:39:29,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:39:29,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:29,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:39:29,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:39:29,407 INFO L87 Difference]: Start difference. First operand 13572 states and 19203 transitions. Second operand 18 states. [2020-10-15 02:39:29,654 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:29,857 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:30,475 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:31,042 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:39:31,223 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:31,394 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:39:32,233 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:39:32,422 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:39:32,624 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:39:32,847 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:39:33,035 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:39:33,236 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:39:33,420 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:39:34,897 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:39:35,084 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:39:35,272 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:35,536 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:39:35,712 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:35,906 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:39:36,084 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:36,303 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:36,481 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:36,675 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:36,853 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:37,283 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:37,458 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:37,872 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:38,045 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:39:40,458 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:40,660 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:39:40,879 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:41,066 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:39:41,263 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:41,462 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:39:41,660 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:39:41,866 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:39:42,103 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:42,299 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:42,509 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:42,722 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:42,923 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:43,159 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:43,482 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:43,676 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:43,886 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:44,076 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:44,266 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:39:44,468 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:39:44,745 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-15 02:39:44,949 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:39:45,134 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:39:45,335 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:39:45,516 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:39:45,709 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:39:45,912 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:39:46,747 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:39:46,917 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:39:47,678 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:39:47,851 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:39:55,655 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-15 02:40:01,458 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-15 02:40:07,735 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-15 02:40:34,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:40:34,409 INFO L93 Difference]: Finished difference Result 327245 states and 485484 transitions. [2020-10-15 02:40:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-15 02:40:34,410 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2020-10-15 02:40:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:40:35,660 INFO L225 Difference]: With dead ends: 327245 [2020-10-15 02:40:35,660 INFO L226 Difference]: Without dead ends: 313723 [2020-10-15 02:40:35,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42599 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-15 02:40:36,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313723 states. [2020-10-15 02:41:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313723 to 309483. [2020-10-15 02:41:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309483 states. [2020-10-15 02:41:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309483 states to 309483 states and 416425 transitions. [2020-10-15 02:41:06,801 INFO L78 Accepts]: Start accepts. Automaton has 309483 states and 416425 transitions. Word has length 103 [2020-10-15 02:41:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:41:06,801 INFO L479 AbstractCegarLoop]: Abstraction has 309483 states and 416425 transitions. [2020-10-15 02:41:06,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:41:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 309483 states and 416425 transitions. [2020-10-15 02:41:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:41:06,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:41:06,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:41:06,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:41:06,807 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:41:06,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:41:06,807 INFO L82 PathProgramCache]: Analyzing trace with hash -605082646, now seen corresponding path program 1 times [2020-10-15 02:41:06,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:41:06,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576830081] [2020-10-15 02:41:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:41:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:07,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:07,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-15 02:41:07,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:41:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-10-15 02:41:07,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:07,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:41:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:41:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:41:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:07,946 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:41:07,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:41:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:07,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:07,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:07,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:41:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:07,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:41:07,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:07,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:07,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:07,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:07,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:41:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:07,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:07,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:07,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:41:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:41:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:07,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:41:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:41:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:41:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:41:08,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:41:08,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:41:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:41:08,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:08,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:41:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:08,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:41:08,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:41:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:41:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:41:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:41:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:41:08,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:41:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:41:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:08,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:41:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:41:08,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:41:08,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:08,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:41:08,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:08,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:41:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:41:08,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:41:08,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:41:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:41:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:41:08,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:41:08,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:41:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:08,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:41:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:08,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:08,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:08,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:08,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:08,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:41:08,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:08,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:41:08,258 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 02:41:08,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576830081] [2020-10-15 02:41:08,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:41:08,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:41:08,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729784824] [2020-10-15 02:41:08,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:41:08,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:41:08,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:41:08,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:41:08,260 INFO L87 Difference]: Start difference. First operand 309483 states and 416425 transitions. Second operand 11 states. [2020-10-15 02:41:08,472 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:41:47,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:41:47,801 INFO L93 Difference]: Finished difference Result 902152 states and 1220872 transitions. [2020-10-15 02:41:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:41:47,802 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-15 02:41:47,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:41:49,601 INFO L225 Difference]: With dead ends: 902152 [2020-10-15 02:41:49,602 INFO L226 Difference]: Without dead ends: 592728 [2020-10-15 02:41:50,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:41:50,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592728 states.