/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:44:59,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:44:59,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:44:59,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:44:59,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:44:59,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:44:59,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:44:59,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:44:59,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:44:59,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:44:59,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:44:59,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:44:59,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:44:59,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:44:59,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:44:59,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:44:59,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:44:59,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:44:59,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:44:59,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:44:59,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:44:59,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:44:59,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:44:59,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:44:59,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:44:59,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:44:59,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:44:59,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:44:59,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:44:59,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:44:59,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:44:59,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:44:59,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:44:59,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:44:59,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:44:59,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:44:59,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:44:59,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:44:59,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:44:59,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:44:59,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:44:59,675 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 [2020-10-29 12:44:59,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:44:59,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:44:59,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:44:59,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:44:59,729 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:44:59,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:44:59,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:44:59,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:44:59,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:44:59,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:44:59,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:44:59,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:44:59,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:44:59,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:44:59,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:44:59,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:44:59,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:44:59,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:44:59,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:44:59,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:44:59,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:44:59,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:44:59,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:44:59,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:44:59,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:44:59,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:44:59,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:44:59,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:44:59,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:44:59,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:45:00,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:45:00,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:45:00,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:45:00,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:45:00,175 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:45:00,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-29 12:45:00,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb7db9a64/b56d701dd2744cfc951f1451e78233d1/FLAGc018d2037 [2020-10-29 12:45:01,055 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:45:01,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-29 12:45:01,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb7db9a64/b56d701dd2744cfc951f1451e78233d1/FLAGc018d2037 [2020-10-29 12:45:01,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb7db9a64/b56d701dd2744cfc951f1451e78233d1 [2020-10-29 12:45:01,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:45:01,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:45:01,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:45:01,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:45:01,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:45:01,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:45:01" (1/1) ... [2020-10-29 12:45:01,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c75636b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:01, skipping insertion in model container [2020-10-29 12:45:01,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:45:01" (1/1) ... [2020-10-29 12:45:01,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:45:01,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:45:01,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:45:01,937 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:45:02,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:45:02,138 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:45:02,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02 WrapperNode [2020-10-29 12:45:02,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:45:02,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:45:02,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:45:02,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:45:02,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (1/1) ... [2020-10-29 12:45:02,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:45:02,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:45:02,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:45:02,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:45:02,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (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 [2020-10-29 12:45:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:45:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:45:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:45:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:45:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:45:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:45:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:45:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:45:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:45:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:45:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:45:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:45:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:45:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:45:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:45:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:45:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:45:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:45:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:45:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:45:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:45:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:45:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:45:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:45:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:45:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:45:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:45:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:45:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:45:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:45:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:45:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:45:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:45:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:45:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:45:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:45:03,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:45:03,986 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:45:03,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:45:03 BoogieIcfgContainer [2020-10-29 12:45:03,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:45:03,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:45:03,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:45:03,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:45:03,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:45:01" (1/3) ... [2020-10-29 12:45:03,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543ad95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:45:03, skipping insertion in model container [2020-10-29 12:45:03,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:02" (2/3) ... [2020-10-29 12:45:04,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543ad95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:45:03, skipping insertion in model container [2020-10-29 12:45:04,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:45:03" (3/3) ... [2020-10-29 12:45:04,002 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-29 12:45:04,016 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:45:04,023 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:45:04,039 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:45:04,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:45:04,087 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:45:04,087 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:45:04,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:45:04,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:45:04,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:45:04,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:45:04,088 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:45:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-10-29 12:45:04,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:45:04,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:04,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:45:04,145 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:04,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:04,151 INFO L82 PathProgramCache]: Analyzing trace with hash 2135324040, now seen corresponding path program 1 times [2020-10-29 12:45:04,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:04,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691461165] [2020-10-29 12:45:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:04,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:05,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:05,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 12:45:05,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-29 12:45:05,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:05,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-29 12:45:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:45:05,918 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:05,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:05,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:05,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:05,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:05,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 12:45:05,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:05,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:05,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:05,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:45:06,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 12:45:06,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:06,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:45:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:06,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:06,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:45:06,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:45:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:06,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:45:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:06,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:06,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:06,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:06,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:45:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:06,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:06,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:45:06,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:06,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:45:06,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:45:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:06,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:06,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:45:06,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:06,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:45:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:06,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:06,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:45:06,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:45:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:06,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:06,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:06,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:06,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:06,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:45:06,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:06,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:06,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:06,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:06,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:06,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691461165] [2020-10-29 12:45:06,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:06,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 12:45:06,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027884918] [2020-10-29 12:45:06,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:45:06,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:06,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:45:06,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:45:06,483 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 7 states. [2020-10-29 12:45:07,538 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:07,988 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:08,518 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:09,017 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:09,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:45:09,609 INFO L93 Difference]: Finished difference Result 565 states and 949 transitions. [2020-10-29 12:45:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:45:09,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-29 12:45:09,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:45:09,640 INFO L225 Difference]: With dead ends: 565 [2020-10-29 12:45:09,640 INFO L226 Difference]: Without dead ends: 401 [2020-10-29 12:45:09,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:45:09,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-29 12:45:09,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-29 12:45:09,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-29 12:45:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 620 transitions. [2020-10-29 12:45:09,761 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 620 transitions. Word has length 109 [2020-10-29 12:45:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:45:09,762 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 620 transitions. [2020-10-29 12:45:09,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:45:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 620 transitions. [2020-10-29 12:45:09,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:45:09,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:09,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:45:09,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:45:09,769 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:09,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:09,770 INFO L82 PathProgramCache]: Analyzing trace with hash -231370554, now seen corresponding path program 1 times [2020-10-29 12:45:09,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:09,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781478998] [2020-10-29 12:45:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:09,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:11,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:11,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 12:45:11,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:11,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1386 [2020-10-29 12:45:11,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:11,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:45:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 12:45:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:45:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:11,896 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:11,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:11,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:11,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:11,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:11,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:11,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:45:11,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:11,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:11,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:11,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:45:12,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-29 12:45:12,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 12:45:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:12,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:45:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:12,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:12,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:45:12,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:45:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:45:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:12,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:45:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:12,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:45:12,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:12,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:12,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:12,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:12,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:45:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:12,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:12,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:12,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:12,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:12,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:45:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:12,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:12,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:45:12,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:12,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:45:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:12,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:12,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:45:12,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:12,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:12,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:12,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:12,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:45:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:12,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:12,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:12,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:12,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:12,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:45:12,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:12,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:12,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781478998] [2020-10-29 12:45:12,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:12,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:45:12,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922339391] [2020-10-29 12:45:12,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:45:12,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:12,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:45:12,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:45:12,679 INFO L87 Difference]: Start difference. First operand 361 states and 620 transitions. Second operand 13 states. [2020-10-29 12:45:15,681 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-29 12:45:16,353 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-29 12:45:17,141 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-29 12:45:17,802 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:45:18,745 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:19,483 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:20,256 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:20,950 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:45:21,928 INFO L93 Difference]: Finished difference Result 560 states and 937 transitions. [2020-10-29 12:45:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:45:21,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-29 12:45:21,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:45:21,934 INFO L225 Difference]: With dead ends: 560 [2020-10-29 12:45:21,934 INFO L226 Difference]: Without dead ends: 401 [2020-10-29 12:45:21,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:45:21,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-29 12:45:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-29 12:45:22,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-29 12:45:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2020-10-29 12:45:22,010 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 109 [2020-10-29 12:45:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:45:22,010 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2020-10-29 12:45:22,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:45:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2020-10-29 12:45:22,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-29 12:45:22,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:22,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:45:22,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:45:22,016 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1064128907, now seen corresponding path program 1 times [2020-10-29 12:45:22,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:22,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246762469] [2020-10-29 12:45:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:22,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:22,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:23,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:23,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 12:45:27,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:45:27,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 12:45:27,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:27,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-29 12:45:27,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:45:27,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:45:27,827 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:27,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:45:27,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:27,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:45:28,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 12:45:28,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:45:28,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:28,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:45:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:28,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:28,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:45:28,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:45:28,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:28,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:45:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:28,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:28,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:45:28,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:45:28,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:45:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:45:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:28,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:45:28,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:45:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:28,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:45:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:28,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:45:28,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:45:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:45:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 12:45:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:28,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:28,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:45:28,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:28,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:28,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:28,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 12:45:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:28,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:28,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:28,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:28,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:28,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:45:28,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:28,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:28,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:28,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:28,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:28,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:28,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246762469] [2020-10-29 12:45:28,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:28,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:45:28,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025863130] [2020-10-29 12:45:28,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:45:28,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:28,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:45:28,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:45:28,548 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand 10 states. [2020-10-29 12:45:29,220 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:45:31,379 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:45:31,916 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:45:32,549 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:32,829 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:45:33,277 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:45:33,649 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:34,817 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:35,205 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:36,066 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:45:36,263 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:45:36,474 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:45:36,807 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:45:36,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:45:36,952 INFO L93 Difference]: Finished difference Result 753 states and 1202 transitions. [2020-10-29 12:45:36,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:45:36,954 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-29 12:45:36,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:45:36,961 INFO L225 Difference]: With dead ends: 753 [2020-10-29 12:45:36,961 INFO L226 Difference]: Without dead ends: 600 [2020-10-29 12:45:36,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:45:36,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-10-29 12:45:37,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 513. [2020-10-29 12:45:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2020-10-29 12:45:37,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 819 transitions. [2020-10-29 12:45:37,030 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 819 transitions. Word has length 154 [2020-10-29 12:45:37,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:45:37,031 INFO L481 AbstractCegarLoop]: Abstraction has 513 states and 819 transitions. [2020-10-29 12:45:37,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:45:37,031 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 819 transitions. [2020-10-29 12:45:37,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-29 12:45:37,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:37,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:45:37,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:45:37,036 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:37,036 INFO L82 PathProgramCache]: Analyzing trace with hash 820401420, now seen corresponding path program 1 times [2020-10-29 12:45:37,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:37,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412305029] [2020-10-29 12:45:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:37,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:37,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:37,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:38,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:40,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:42,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:42,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-29 12:45:42,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:45:42,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 12:45:42,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:42,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:45:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:45:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 12:45:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:42,826 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:42,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:42,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:42,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:42,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:42,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:45:42,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:42,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:42,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:42,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:42,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:42,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:42,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:42,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:45:43,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-29 12:45:43,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:45:43,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:43,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:45:43,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:43,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:45:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:43,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:45:43,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:45:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:45:43,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:45:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:43,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:45:43,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:45:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:43,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:45:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:43,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:45:43,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:45:43,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:43,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:45:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:45:43,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:45:43,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:43,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:45:43,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:45:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:43,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-29 12:45:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:43,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:43,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:43,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 12:45:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:43,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:43,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:43,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:45:43,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:43,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:43,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412305029] [2020-10-29 12:45:43,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:43,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:45:43,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334034302] [2020-10-29 12:45:43,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:45:43,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:43,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:45:43,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:45:43,776 INFO L87 Difference]: Start difference. First operand 513 states and 819 transitions. Second operand 10 states. [2020-10-29 12:45:44,426 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:45:45,118 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:45:46,036 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:45:47,251 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-29 12:45:52,448 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:45:52,951 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:45:53,260 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:53,771 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:45:54,228 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:45:54,843 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:55,559 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:45:56,132 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:45:56,633 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:57,256 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:45:57,885 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:45:58,143 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:45:58,787 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:46:00,125 INFO L93 Difference]: Finished difference Result 2034 states and 3251 transitions. [2020-10-29 12:46:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:46:00,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-29 12:46:00,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:46:00,145 INFO L225 Difference]: With dead ends: 2034 [2020-10-29 12:46:00,145 INFO L226 Difference]: Without dead ends: 1570 [2020-10-29 12:46:00,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:46:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2020-10-29 12:46:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1366. [2020-10-29 12:46:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2020-10-29 12:46:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2169 transitions. [2020-10-29 12:46:00,326 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2169 transitions. Word has length 157 [2020-10-29 12:46:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:46:00,327 INFO L481 AbstractCegarLoop]: Abstraction has 1366 states and 2169 transitions. [2020-10-29 12:46:00,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:46:00,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2169 transitions. [2020-10-29 12:46:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 12:46:00,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:46:00,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:46:00,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:46:00,332 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:46:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:46:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1450300335, now seen corresponding path program 1 times [2020-10-29 12:46:00,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:46:00,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635846578] [2020-10-29 12:46:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:46:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:00,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:00,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:01,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:05,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:05,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-29 12:46:05,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:46:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:46:05,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:05,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:46:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 12:46:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,173 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:46:06,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:46:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:46:06,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:46:06,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:06,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:06,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:46:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 12:46:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:46:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:46:06,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:06,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:06,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:46:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:06,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:46:06,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:46:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:46:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 12:46:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:06,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:46:06,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:06,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:06,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:06,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-29 12:46:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:06,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:06,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:06,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:46:06,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:06,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:06,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:46:06,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635846578] [2020-10-29 12:46:06,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:46:06,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:46:06,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179269403] [2020-10-29 12:46:06,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:46:06,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:46:06,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:46:06,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:46:06,929 INFO L87 Difference]: Start difference. First operand 1366 states and 2169 transitions. Second operand 10 states. [2020-10-29 12:46:07,567 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:46:08,226 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:46:09,501 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-29 12:46:10,153 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:46:16,175 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:16,683 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:17,004 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:17,520 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:17,999 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:18,623 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:19,262 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:19,994 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:20,468 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:20,985 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:21,685 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:21,959 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:22,425 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:23,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:46:23,946 INFO L93 Difference]: Finished difference Result 5678 states and 9055 transitions. [2020-10-29 12:46:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:46:23,953 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-29 12:46:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:46:23,980 INFO L225 Difference]: With dead ends: 5678 [2020-10-29 12:46:23,980 INFO L226 Difference]: Without dead ends: 4390 [2020-10-29 12:46:23,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:46:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2020-10-29 12:46:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3850. [2020-10-29 12:46:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3850 states. [2020-10-29 12:46:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 6086 transitions. [2020-10-29 12:46:24,466 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 6086 transitions. Word has length 158 [2020-10-29 12:46:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:46:24,467 INFO L481 AbstractCegarLoop]: Abstraction has 3850 states and 6086 transitions. [2020-10-29 12:46:24,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:46:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 6086 transitions. [2020-10-29 12:46:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-29 12:46:24,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:46:24,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:46:24,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:46:24,477 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:46:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:46:24,478 INFO L82 PathProgramCache]: Analyzing trace with hash 570529745, now seen corresponding path program 1 times [2020-10-29 12:46:24,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:46:24,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071592467] [2020-10-29 12:46:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:46:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:24,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:24,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:24,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:26,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:26,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:27,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:27,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:29,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:29,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 12:46:29,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 12:46:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,286 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:46:30,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:46:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:46:30,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:46:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:46:30,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 12:46:30,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:30,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:46:30,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:46:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:46:30,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:46:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:30,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:46:30,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:30,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:46:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:46:30,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:46:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:46:30,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:46:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:46:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:46:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 12:46:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:30,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:46:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:30,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 12:46:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:30,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:30,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:30,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:46:30,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:30,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:30,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:30,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:30,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:46:31,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071592467] [2020-10-29 12:46:31,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:46:31,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:46:31,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062201882] [2020-10-29 12:46:31,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:46:31,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:46:31,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:46:31,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:46:31,007 INFO L87 Difference]: Start difference. First operand 3850 states and 6086 transitions. Second operand 10 states. [2020-10-29 12:46:31,618 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:46:32,314 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:46:33,227 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:46:34,476 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-29 12:46:40,518 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:41,067 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:41,399 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:42,003 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:42,413 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:42,992 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:43,819 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:44,410 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:44,893 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:45,552 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:46,335 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:46,594 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:46,901 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:48,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:46:48,794 INFO L93 Difference]: Finished difference Result 16253 states and 25785 transitions. [2020-10-29 12:46:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:46:48,796 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-29 12:46:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:46:48,862 INFO L225 Difference]: With dead ends: 16253 [2020-10-29 12:46:48,862 INFO L226 Difference]: Without dead ends: 12586 [2020-10-29 12:46:48,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:46:48,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12586 states. [2020-10-29 12:46:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12586 to 11064. [2020-10-29 12:46:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11064 states. [2020-10-29 12:46:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11064 states to 11064 states and 17391 transitions. [2020-10-29 12:46:50,162 INFO L78 Accepts]: Start accepts. Automaton has 11064 states and 17391 transitions. Word has length 159 [2020-10-29 12:46:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:46:50,162 INFO L481 AbstractCegarLoop]: Abstraction has 11064 states and 17391 transitions. [2020-10-29 12:46:50,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:46:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 11064 states and 17391 transitions. [2020-10-29 12:46:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-29 12:46:50,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:46:50,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:46:50,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:46:50,189 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:46:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:46:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2097473932, now seen corresponding path program 1 times [2020-10-29 12:46:50,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:46:50,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611865542] [2020-10-29 12:46:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:46:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:50,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:50,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:50,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:50,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:53,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:54,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:54,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:55,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:55,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-29 12:46:55,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:46:55,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 12:46:55,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:55,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:46:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 12:46:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:46:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:55,891 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:46:55,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:46:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:55,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:55,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:46:55,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:55,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:46:55,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:55,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:55,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:46:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:55,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:46:56,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 12:46:56,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 12:46:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:46:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:56,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:56,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:46:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:56,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:56,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:46:56,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:46:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:56,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:56,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:46:56,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:46:56,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:46:56,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:46:56,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:46:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:56,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:46:56,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:56,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:46:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:56,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-29 12:46:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:56,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:56,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:56,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:56,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-29 12:46:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:56,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:56,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:46:56,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:46:56,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611865542] [2020-10-29 12:46:56,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:46:56,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:46:56,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920828267] [2020-10-29 12:46:56,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:46:56,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:46:56,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:46:56,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:46:56,428 INFO L87 Difference]: Start difference. First operand 11064 states and 17391 transitions. Second operand 10 states. [2020-10-29 12:46:57,080 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:46:59,865 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:47:00,481 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:00,790 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:01,231 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:47:01,558 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:02,257 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:47:02,646 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:03,974 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:04,450 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:47:05,178 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-29 12:47:05,413 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:47:05,722 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:47:05,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:47:05,917 INFO L93 Difference]: Finished difference Result 22857 states and 36277 transitions. [2020-10-29 12:47:05,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:47:05,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-29 12:47:05,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:47:05,986 INFO L225 Difference]: With dead ends: 22857 [2020-10-29 12:47:05,987 INFO L226 Difference]: Without dead ends: 17450 [2020-10-29 12:47:06,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:47:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17450 states. [2020-10-29 12:47:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17450 to 14995. [2020-10-29 12:47:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14995 states. [2020-10-29 12:47:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14995 states to 14995 states and 23551 transitions. [2020-10-29 12:47:07,276 INFO L78 Accepts]: Start accepts. Automaton has 14995 states and 23551 transitions. Word has length 160 [2020-10-29 12:47:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:47:07,276 INFO L481 AbstractCegarLoop]: Abstraction has 14995 states and 23551 transitions. [2020-10-29 12:47:07,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:47:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 14995 states and 23551 transitions. [2020-10-29 12:47:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-29 12:47:07,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:47:07,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:47:07,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:47:07,304 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:47:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:47:07,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1934547980, now seen corresponding path program 1 times [2020-10-29 12:47:07,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:47:07,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776342074] [2020-10-29 12:47:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:47:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:07,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:07,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:10,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:11,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:12,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,010 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:47:13,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:47:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:47:13,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:47:13,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:47:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:47:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:47:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:47:13,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:47:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:13,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:47:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:47:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:47:13,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:47:13,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:13,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 12:47:13,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:13,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 12:47:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 12:47:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:47:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 12:47:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:13,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:47:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:47:13,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776342074] [2020-10-29 12:47:13,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:47:13,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:47:13,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64567313] [2020-10-29 12:47:13,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:47:13,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:47:13,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:47:13,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:47:13,659 INFO L87 Difference]: Start difference. First operand 14995 states and 23551 transitions. Second operand 10 states. [2020-10-29 12:47:14,329 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:47:14,985 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-29 12:47:15,797 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:47:17,129 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2020-10-29 12:47:24,057 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:47:24,555 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:24,804 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:25,370 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:26,086 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:26,415 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:27,062 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:28,038 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:28,251 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:28,839 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:29,778 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:30,067 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:30,770 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:47:33,035 INFO L93 Difference]: Finished difference Result 55646 states and 87651 transitions. [2020-10-29 12:47:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:47:33,037 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-29 12:47:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:47:33,196 INFO L225 Difference]: With dead ends: 55646 [2020-10-29 12:47:33,197 INFO L226 Difference]: Without dead ends: 40801 [2020-10-29 12:47:33,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:47:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40801 states. [2020-10-29 12:47:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40801 to 35938. [2020-10-29 12:47:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35938 states. [2020-10-29 12:47:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35938 states to 35938 states and 55616 transitions. [2020-10-29 12:47:36,049 INFO L78 Accepts]: Start accepts. Automaton has 35938 states and 55616 transitions. Word has length 163 [2020-10-29 12:47:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:47:36,050 INFO L481 AbstractCegarLoop]: Abstraction has 35938 states and 55616 transitions. [2020-10-29 12:47:36,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:47:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 35938 states and 55616 transitions. [2020-10-29 12:47:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-29 12:47:36,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:47:36,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:47:36,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:47:36,115 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:47:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:47:36,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2046118123, now seen corresponding path program 1 times [2020-10-29 12:47:36,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:47:36,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113755146] [2020-10-29 12:47:36,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:47:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:36,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:36,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:36,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:37,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:41,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:41,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-29 12:47:41,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:47:41,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:47:41,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:41,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:47:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 12:47:41,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:41,806 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:47:41,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:47:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:41,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:41,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:41,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:47:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:41,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:41,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:41,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:47:41,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:41,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 12:47:41,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:41,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:47:41,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:47:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:42,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:47:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:42,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:42,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:42,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:42,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:47:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:42,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:47:42,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:42,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-29 12:47:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:42,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:42,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:47:42,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:42,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 12:47:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:42,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:42,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:42,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:42,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:47:42,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:42,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:47:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-29 12:47:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:42,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:42,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:47:42,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:42,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:47:42,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:42,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:47:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:42,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:47:42,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113755146] [2020-10-29 12:47:42,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:47:42,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:47:42,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709224892] [2020-10-29 12:47:42,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:47:42,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:47:42,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:47:42,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:47:42,356 INFO L87 Difference]: Start difference. First operand 35938 states and 55616 transitions. Second operand 10 states. [2020-10-29 12:47:43,045 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:47:43,741 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:47:44,615 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:47:46,563 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-29 12:47:54,343 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:47:54,817 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:55,153 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:55,584 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:56,302 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:56,799 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:57,399 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:58,362 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:58,728 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:59,269 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:00,169 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:00,507 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:01,042 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:04,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:48:04,123 INFO L93 Difference]: Finished difference Result 139503 states and 216477 transitions. [2020-10-29 12:48:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:48:04,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-29 12:48:04,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:48:04,516 INFO L225 Difference]: With dead ends: 139503 [2020-10-29 12:48:04,516 INFO L226 Difference]: Without dead ends: 105104 [2020-10-29 12:48:04,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:48:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105104 states. [2020-10-29 12:48:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105104 to 93479. [2020-10-29 12:48:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93479 states. [2020-10-29 12:48:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93479 states to 93479 states and 143050 transitions. [2020-10-29 12:48:12,600 INFO L78 Accepts]: Start accepts. Automaton has 93479 states and 143050 transitions. Word has length 164 [2020-10-29 12:48:12,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:48:12,601 INFO L481 AbstractCegarLoop]: Abstraction has 93479 states and 143050 transitions. [2020-10-29 12:48:12,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:48:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 93479 states and 143050 transitions. [2020-10-29 12:48:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-29 12:48:12,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:48:12,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:48:12,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:48:12,897 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:48:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:48:12,898 INFO L82 PathProgramCache]: Analyzing trace with hash 65749639, now seen corresponding path program 1 times [2020-10-29 12:48:12,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:48:12,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365462756] [2020-10-29 12:48:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:48:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:12,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:13,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:13,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:13,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:14,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:15,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:16,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:17,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:17,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:17,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 12:48:17,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 12:48:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:48:17,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:17,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:48:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:48:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 12:48:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:18,602 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:48:18,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:48:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:18,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:18,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:18,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:48:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:18,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:18,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:48:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:18,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:48:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:18,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:48:18,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:18,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:48:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:18,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:48:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:18,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:48:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:48:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:48:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-29 12:48:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:48:19,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:48:19,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:48:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 12:48:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:48:19,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:48:19,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:48:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:19,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 12:48:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:48:19,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:48:19,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:19,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:48:19,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:19,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:48:19,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365462756] [2020-10-29 12:48:19,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:48:19,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:48:19,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934789528] [2020-10-29 12:48:19,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:48:19,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:48:19,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:48:19,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:48:19,221 INFO L87 Difference]: Start difference. First operand 93479 states and 143050 transitions. Second operand 10 states. [2020-10-29 12:48:19,916 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:48:20,615 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2020-10-29 12:48:21,555 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2020-10-29 12:48:22,916 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 294 DAG size of output: 288 [2020-10-29 12:48:39,246 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 286