/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 18:00:26,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 18:00:26,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 18:00:26,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 18:00:26,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 18:00:26,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 18:00:26,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 18:00:26,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 18:00:26,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 18:00:26,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 18:00:26,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 18:00:26,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 18:00:26,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 18:00:26,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 18:00:26,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 18:00:26,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 18:00:26,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 18:00:26,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 18:00:26,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 18:00:26,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 18:00:26,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 18:00:26,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 18:00:26,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 18:00:26,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 18:00:26,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 18:00:26,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 18:00:26,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 18:00:26,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 18:00:26,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 18:00:26,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 18:00:26,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 18:00:26,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 18:00:26,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 18:00:26,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 18:00:26,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 18:00:26,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 18:00:26,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 18:00:26,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 18:00:26,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 18:00:26,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 18:00:26,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 18:00:26,728 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 [2020-10-28 18:00:26,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 18:00:26,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 18:00:26,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 18:00:26,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 18:00:26,764 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 18:00:26,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 18:00:26,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 18:00:26,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 18:00:26,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 18:00:26,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 18:00:26,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 18:00:26,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 18:00:26,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 18:00:26,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 18:00:26,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 18:00:26,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 18:00:26,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 18:00:26,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 18:00:26,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 18:00:26,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 18:00:26,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 18:00:26,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 18:00:26,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 18:00:26,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 18:00:26,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 18:00:26,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 18:00:26,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 18:00:26,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 18:00:26,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 18:00:26,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 18:00:27,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 18:00:27,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 18:00:27,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 18:00:27,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 18:00:27,196 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 18:00:27,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-28 18:00:27,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dffe9a297/baac926dff534ddb9b48237114a293b0/FLAGe48797d6a [2020-10-28 18:00:28,071 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 18:00:28,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-28 18:00:28,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dffe9a297/baac926dff534ddb9b48237114a293b0/FLAGe48797d6a [2020-10-28 18:00:28,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dffe9a297/baac926dff534ddb9b48237114a293b0 [2020-10-28 18:00:28,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 18:00:28,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 18:00:28,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 18:00:28,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 18:00:28,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 18:00:28,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:00:28" (1/1) ... [2020-10-28 18:00:28,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608ccabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:28, skipping insertion in model container [2020-10-28 18:00:28,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:00:28" (1/1) ... [2020-10-28 18:00:28,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 18:00:28,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 18:00:28,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:00:28,846 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 18:00:28,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:00:29,053 INFO L208 MainTranslator]: Completed translation [2020-10-28 18:00:29,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29 WrapperNode [2020-10-28 18:00:29,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 18:00:29,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 18:00:29,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 18:00:29,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 18:00:29,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (1/1) ... [2020-10-28 18:00:29,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 18:00:29,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 18:00:29,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 18:00:29,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 18:00:29,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (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 [2020-10-28 18:00:29,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 18:00:29,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 18:00:29,359 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 18:00:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 18:00:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 18:00:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 18:00:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 18:00:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 18:00:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 18:00:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 18:00:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 18:00:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 18:00:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 18:00:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 18:00:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 18:00:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 18:00:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 18:00:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 18:00:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 18:00:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 18:00:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 18:00:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 18:00:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 18:00:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 18:00:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 18:00:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 18:00:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 18:00:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 18:00:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 18:00:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 18:00:31,500 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 18:00:31,501 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 18:00:31,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:00:31 BoogieIcfgContainer [2020-10-28 18:00:31,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 18:00:31,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 18:00:31,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 18:00:31,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 18:00:31,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 06:00:28" (1/3) ... [2020-10-28 18:00:31,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab76529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:00:31, skipping insertion in model container [2020-10-28 18:00:31,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:00:29" (2/3) ... [2020-10-28 18:00:31,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab76529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:00:31, skipping insertion in model container [2020-10-28 18:00:31,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:00:31" (3/3) ... [2020-10-28 18:00:31,514 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-28 18:00:31,527 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 18:00:31,533 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 18:00:31,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 18:00:31,581 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 18:00:31,581 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 18:00:31,581 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 18:00:31,582 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 18:00:31,582 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 18:00:31,582 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 18:00:31,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 18:00:31,582 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 18:00:31,611 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states. [2020-10-28 18:00:31,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 18:00:31,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:31,631 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] [2020-10-28 18:00:31,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:31,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:31,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1190005950, now seen corresponding path program 1 times [2020-10-28 18:00:31,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:31,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755833010] [2020-10-28 18:00:31,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:32,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:32,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:32,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 18:00:32,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:32,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-10-28 18:00:32,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:32,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 18:00:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:32,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 18:00:33,839 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:33,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:33,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:33,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:33,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:33,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 18:00:33,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:33,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:33,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:33,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 18:00:34,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 18:00:34,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:34,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:34,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:00:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:34,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:34,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:34,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 18:00:34,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:34,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 18:00:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:34,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:34,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:00:34,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:34,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 18:00:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:34,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:34,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:34,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:34,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 18:00:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:00:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:34,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:34,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:34,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 18:00:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:34,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:34,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:34,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:34,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 18:00:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:34,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:34,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:34,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:34,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:00:34,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:34,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:34,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:34,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:34,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755833010] [2020-10-28 18:00:34,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:34,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 18:00:34,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421980883] [2020-10-28 18:00:34,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 18:00:34,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:34,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 18:00:34,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 18:00:34,490 INFO L87 Difference]: Start difference. First operand 370 states. Second operand 7 states. [2020-10-28 18:00:35,562 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:36,123 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:36,716 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:37,302 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:38,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:00:38,066 INFO L93 Difference]: Finished difference Result 568 states and 955 transitions. [2020-10-28 18:00:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 18:00:38,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-28 18:00:38,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:00:38,087 INFO L225 Difference]: With dead ends: 568 [2020-10-28 18:00:38,087 INFO L226 Difference]: Without dead ends: 403 [2020-10-28 18:00:38,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-28 18:00:38,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-28 18:00:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 362. [2020-10-28 18:00:38,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-28 18:00:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 622 transitions. [2020-10-28 18:00:38,243 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 622 transitions. Word has length 109 [2020-10-28 18:00:38,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:00:38,244 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 622 transitions. [2020-10-28 18:00:38,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 18:00:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 622 transitions. [2020-10-28 18:00:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 18:00:38,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:38,253 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] [2020-10-28 18:00:38,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 18:00:38,253 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:38,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:38,254 INFO L82 PathProgramCache]: Analyzing trace with hash 738266752, now seen corresponding path program 1 times [2020-10-28 18:00:38,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:38,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491718913] [2020-10-28 18:00:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:39,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:39,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 18:00:39,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:39,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-10-28 18:00:39,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:39,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:00:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 18:00:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 18:00:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:40,559 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:40,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:40,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:40,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:40,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:40,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:40,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:00:40,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:40,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:40,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:40,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:40,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:40,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:40,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:40,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:40,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:40,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 18:00:40,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:40,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-28 18:00:40,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:40,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:00:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:40,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 18:00:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:40,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:00:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:40,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:40,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:40,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:40,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:00:40,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:40,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:00:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 18:00:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 18:00:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:41,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:41,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:41,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:41,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:41,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:00:41,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:41,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:41,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 18:00:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 18:00:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:41,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:41,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:41,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:41,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:41,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:00:41,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:41,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:41,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 18:00:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:41,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:41,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:41,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:41,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:00:41,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:41,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 18:00:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:41,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:41,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:41,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:41,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:41,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:00:41,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:41,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 18:00:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:41,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:41,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 18:00:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:41,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:41,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:41,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:41,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:41,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:00:41,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:41,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:41,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491718913] [2020-10-28 18:00:41,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:41,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:00:41,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963382475] [2020-10-28 18:00:41,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:00:41,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:41,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:00:41,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:00:41,359 INFO L87 Difference]: Start difference. First operand 362 states and 622 transitions. Second operand 13 states. [2020-10-28 18:00:44,331 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-28 18:00:45,108 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-28 18:00:45,944 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-28 18:00:46,631 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:00:47,617 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:48,378 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:49,098 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:49,795 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:00:50,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:00:50,915 INFO L93 Difference]: Finished difference Result 563 states and 943 transitions. [2020-10-28 18:00:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 18:00:50,916 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-28 18:00:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:00:50,921 INFO L225 Difference]: With dead ends: 563 [2020-10-28 18:00:50,921 INFO L226 Difference]: Without dead ends: 403 [2020-10-28 18:00:50,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-28 18:00:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-28 18:00:51,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 362. [2020-10-28 18:00:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-28 18:00:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 576 transitions. [2020-10-28 18:00:51,005 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 576 transitions. Word has length 109 [2020-10-28 18:00:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:00:51,009 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 576 transitions. [2020-10-28 18:00:51,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:00:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 576 transitions. [2020-10-28 18:00:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 18:00:51,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:00:51,014 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] [2020-10-28 18:00:51,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 18:00:51,015 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:00:51,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:00:51,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1916123031, now seen corresponding path program 1 times [2020-10-28 18:00:51,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:00:51,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751206144] [2020-10-28 18:00:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:00:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:51,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:51,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:56,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:56,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 18:00:56,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 18:00:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 18:00:56,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:56,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:00:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 18:00:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 18:00:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:00:56,784 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:00:56,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:00:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:56,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:56,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:56,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:00:56,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:00:56,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:56,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:56,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:00:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:56,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:56,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:56,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 18:00:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:00:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:57,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:57,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:57,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:00:57,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:00:57,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:57,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:00:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:00:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:57,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:57,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:57,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:57,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:57,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:57,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:00:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:00:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:57,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:00:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:57,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:57,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:57,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:57,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:00:57,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:57,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:00:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:00:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:00:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:00:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:57,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:57,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:57,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:00:57,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 18:00:57,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:57,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:00:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:00:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 18:00:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 18:00:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:00:57,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:00:57,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:00:57,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:00:57,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:00:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:00:57,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:00:57,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:00:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:00:57,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:00:57,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:00:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:00:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:00:57,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751206144] [2020-10-28 18:00:57,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:00:57,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:00:57,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046219036] [2020-10-28 18:00:57,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:00:57,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:00:57,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:00:57,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:00:57,448 INFO L87 Difference]: Start difference. First operand 362 states and 576 transitions. Second operand 10 states. [2020-10-28 18:00:58,110 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:01:00,384 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:01:00,954 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:01:01,552 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:01:02,232 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:02,512 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:03,569 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:03,998 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:04,402 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:04,803 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-28 18:01:05,477 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:01:05,727 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-28 18:01:06,081 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-28 18:01:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:06,236 INFO L93 Difference]: Finished difference Result 757 states and 1210 transitions. [2020-10-28 18:01:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:01:06,238 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-28 18:01:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:06,244 INFO L225 Difference]: With dead ends: 757 [2020-10-28 18:01:06,244 INFO L226 Difference]: Without dead ends: 603 [2020-10-28 18:01:06,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:01:06,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-28 18:01:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 516. [2020-10-28 18:01:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-28 18:01:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 824 transitions. [2020-10-28 18:01:06,310 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 824 transitions. Word has length 154 [2020-10-28 18:01:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:01:06,311 INFO L481 AbstractCegarLoop]: Abstraction has 516 states and 824 transitions. [2020-10-28 18:01:06,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:01:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 824 transitions. [2020-10-28 18:01:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-28 18:01:06,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:01:06,315 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] [2020-10-28 18:01:06,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 18:01:06,315 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:01:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:01:06,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1289262900, now seen corresponding path program 1 times [2020-10-28 18:01:06,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:01:06,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108209655] [2020-10-28 18:01:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:01:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:06,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:06,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:08,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:08,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:08,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:11,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:11,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 18:01:11,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:01:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-28 18:01:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:01:12,087 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:01:12,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:01:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:01:12,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 18:01:12,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:12,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:12,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:12,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:01:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:01:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:01:12,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-28 18:01:12,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:12,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 18:01:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:12,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:01:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:01:12,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:01:12,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:01:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:12,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:01:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:01:12,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:01:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:12,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:01:12,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:12,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:01:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:12,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:12,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:01:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 18:01:12,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:01:12,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:12,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:01:12,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 18:01:12,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 18:01:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:12,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:12,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:12,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:01:12,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:01:12,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:12,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:12,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:12,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:01:12,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108209655] [2020-10-28 18:01:12,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:01:12,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:01:12,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361703630] [2020-10-28 18:01:12,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:01:12,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:01:12,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:01:12,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:01:12,994 INFO L87 Difference]: Start difference. First operand 516 states and 824 transitions. Second operand 10 states. [2020-10-28 18:01:13,690 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:01:14,375 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-28 18:01:15,197 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:01:16,467 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2020-10-28 18:01:21,901 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:22,392 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:22,704 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:23,146 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:23,717 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:24,254 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:24,836 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:25,434 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:25,977 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:26,518 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:27,396 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:27,845 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:28,294 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:29,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:29,868 INFO L93 Difference]: Finished difference Result 2153 states and 3458 transitions. [2020-10-28 18:01:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:01:29,869 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-28 18:01:29,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:29,883 INFO L225 Difference]: With dead ends: 2153 [2020-10-28 18:01:29,884 INFO L226 Difference]: Without dead ends: 1674 [2020-10-28 18:01:29,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:01:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2020-10-28 18:01:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1448. [2020-10-28 18:01:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2020-10-28 18:01:30,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2311 transitions. [2020-10-28 18:01:30,049 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2311 transitions. Word has length 157 [2020-10-28 18:01:30,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:01:30,050 INFO L481 AbstractCegarLoop]: Abstraction has 1448 states and 2311 transitions. [2020-10-28 18:01:30,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:01:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2311 transitions. [2020-10-28 18:01:30,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-28 18:01:30,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:01:30,055 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] [2020-10-28 18:01:30,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 18:01:30,055 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:01:30,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:01:30,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2120592677, now seen corresponding path program 1 times [2020-10-28 18:01:30,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:01:30,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35925402] [2020-10-28 18:01:30,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:01:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:30,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:30,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:30,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:30,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:35,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:35,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-28 18:01:35,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 18:01:35,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-28 18:01:35,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:35,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:01:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 18:01:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:35,848 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:01:35,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:01:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:35,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:35,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:35,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:35,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:35,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:01:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:35,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:01:36,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 18:01:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:01:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:36,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:01:36,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:01:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:01:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:36,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:01:36,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:36,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:36,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:01:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:36,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:36,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:01:36,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:01:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:01:36,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:01:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:36,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 18:01:36,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:01:36,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:01:36,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:01:36,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:01:36,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-28 18:01:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:36,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:36,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:36,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:01:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:01:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:01:36,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:36,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:01:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:01:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:01:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:01:36,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:01:36,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35925402] [2020-10-28 18:01:36,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:01:36,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:01:36,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168669113] [2020-10-28 18:01:36,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:01:36,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:01:36,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:01:36,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:01:36,614 INFO L87 Difference]: Start difference. First operand 1448 states and 2311 transitions. Second operand 10 states. [2020-10-28 18:01:37,345 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:01:38,074 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:01:39,153 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:01:40,534 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 18:01:46,069 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:01:46,507 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:46,818 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:47,407 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:47,830 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:48,400 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:49,122 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:49,543 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:50,088 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:50,854 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:51,559 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:01:52,042 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:01:52,683 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:01:53,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:01:53,885 INFO L93 Difference]: Finished difference Result 5993 states and 9576 transitions. [2020-10-28 18:01:53,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:01:53,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-28 18:01:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:01:53,915 INFO L225 Difference]: With dead ends: 5993 [2020-10-28 18:01:53,915 INFO L226 Difference]: Without dead ends: 4654 [2020-10-28 18:01:53,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:01:53,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2020-10-28 18:01:54,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 4052. [2020-10-28 18:01:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4052 states. [2020-10-28 18:01:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 6424 transitions. [2020-10-28 18:01:54,365 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 6424 transitions. Word has length 158 [2020-10-28 18:01:54,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:01:54,366 INFO L481 AbstractCegarLoop]: Abstraction has 4052 states and 6424 transitions. [2020-10-28 18:01:54,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:01:54,366 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 6424 transitions. [2020-10-28 18:01:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-28 18:01:54,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:01:54,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:01:54,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 18:01:54,377 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:01:54,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:01:54,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1463639220, now seen corresponding path program 1 times [2020-10-28 18:01:54,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:01:54,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132787059] [2020-10-28 18:01:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:01:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:01:54,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:54,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:54,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:57,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:57,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:01:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:01:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-28 18:01:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:00,405 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:02:00,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:02:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:00,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:00,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:00,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:02:00,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:02:00,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:00,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:00,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:02:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:00,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:00,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:00,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:02:00,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:00,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-28 18:02:00,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:00,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:02:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 18:02:00,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:02:00,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:02:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:00,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:00,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:00,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:02:00,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:00,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:02:00,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:00,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:02:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:00,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:02:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:00,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:02:00,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:00,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:00,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:02:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:00,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:00,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:00,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:00,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:02:00,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:00,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:00,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:02:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:00,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:00,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:00,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:02:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:00,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:01,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:02:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:01,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:01,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 18:02:01,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:02:01,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:01,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:02:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:02:01,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:01,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-28 18:02:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:01,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:01,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:02:01,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:01,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:02:01,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132787059] [2020-10-28 18:02:01,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:02:01,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:02:01,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301871145] [2020-10-28 18:02:01,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:02:01,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:02:01,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:02:01,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:02:01,174 INFO L87 Difference]: Start difference. First operand 4052 states and 6424 transitions. Second operand 10 states. [2020-10-28 18:02:02,007 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:02:02,647 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 18:02:03,417 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:02:04,115 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:02:09,279 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:02:09,734 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:10,070 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:10,948 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:11,469 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:12,370 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:12,882 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:13,964 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:14,400 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:02:16,029 INFO L93 Difference]: Finished difference Result 13281 states and 21162 transitions. [2020-10-28 18:02:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:02:16,040 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-28 18:02:16,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:02:16,092 INFO L225 Difference]: With dead ends: 13281 [2020-10-28 18:02:16,092 INFO L226 Difference]: Without dead ends: 9500 [2020-10-28 18:02:16,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:02:16,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9500 states. [2020-10-28 18:02:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9500 to 8337. [2020-10-28 18:02:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8337 states. [2020-10-28 18:02:17,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8337 states to 8337 states and 13097 transitions. [2020-10-28 18:02:17,168 INFO L78 Accepts]: Start accepts. Automaton has 8337 states and 13097 transitions. Word has length 159 [2020-10-28 18:02:17,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:02:17,169 INFO L481 AbstractCegarLoop]: Abstraction has 8337 states and 13097 transitions. [2020-10-28 18:02:17,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:02:17,169 INFO L276 IsEmpty]: Start isEmpty. Operand 8337 states and 13097 transitions. [2020-10-28 18:02:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-28 18:02:17,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:02:17,189 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] [2020-10-28 18:02:17,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 18:02:17,190 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:02:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:02:17,190 INFO L82 PathProgramCache]: Analyzing trace with hash -547379232, now seen corresponding path program 1 times [2020-10-28 18:02:17,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:02:17,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126745645] [2020-10-28 18:02:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:02:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:17,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:17,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:17,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:17,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:17,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:22,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 18:02:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,050 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:02:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:02:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:02:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:02:23,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:23,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:02:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 18:02:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:02:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:02:23,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:02:23,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:02:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:02:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:02:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:23,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:02:23,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:02:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:23,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:02:23,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:02:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:02:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 18:02:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 18:02:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:23,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-28 18:02:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:23,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:23,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:02:23,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:02:23,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:23,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:23,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:23,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:02:23,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:23,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:02:23,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126745645] [2020-10-28 18:02:23,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:02:23,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:02:23,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655862617] [2020-10-28 18:02:23,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:02:23,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:02:23,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:02:23,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:02:23,648 INFO L87 Difference]: Start difference. First operand 8337 states and 13097 transitions. Second operand 10 states. [2020-10-28 18:02:24,388 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:02:27,373 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:02:27,949 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:02:28,612 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:28,971 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:29,538 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 18:02:29,986 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:31,418 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:31,899 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:32,849 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-28 18:02:33,056 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-28 18:02:33,264 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-28 18:02:33,614 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-28 18:02:33,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:02:33,876 INFO L93 Difference]: Finished difference Result 17276 states and 27317 transitions. [2020-10-28 18:02:33,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:02:33,877 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-28 18:02:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:02:33,936 INFO L225 Difference]: With dead ends: 17276 [2020-10-28 18:02:33,937 INFO L226 Difference]: Without dead ends: 13240 [2020-10-28 18:02:33,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 18:02:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13240 states. [2020-10-28 18:02:34,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13240 to 11349. [2020-10-28 18:02:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11349 states. [2020-10-28 18:02:34,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11349 states to 11349 states and 17797 transitions. [2020-10-28 18:02:34,961 INFO L78 Accepts]: Start accepts. Automaton has 11349 states and 17797 transitions. Word has length 160 [2020-10-28 18:02:34,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:02:34,962 INFO L481 AbstractCegarLoop]: Abstraction has 11349 states and 17797 transitions. [2020-10-28 18:02:34,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:02:34,962 INFO L276 IsEmpty]: Start isEmpty. Operand 11349 states and 17797 transitions. [2020-10-28 18:02:34,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-28 18:02:34,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:02:34,982 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] [2020-10-28 18:02:34,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 18:02:34,983 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:02:34,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:02:34,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1376208993, now seen corresponding path program 1 times [2020-10-28 18:02:34,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:02:34,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632765496] [2020-10-28 18:02:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:02:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:35,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:35,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:38,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:40,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 18:02:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:40,785 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:02:40,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:02:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:40,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:40,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:02:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:02:40,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:40,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:40,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:02:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:40,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:40,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:40,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:02:40,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 18:02:40,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:40,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:40,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:02:40,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:40,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:02:40,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:02:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:41,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:41,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:02:41,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:02:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:02:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:41,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:41,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:41,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:02:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:41,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:02:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:02:41,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:02:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:41,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:41,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:41,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 18:02:41,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:02:41,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 18:02:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:41,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-28 18:02:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:02:41,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:02:41,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:02:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:02:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:02:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:02:41,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632765496] [2020-10-28 18:02:41,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:02:41,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:02:41,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100190503] [2020-10-28 18:02:41,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:02:41,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:02:41,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:02:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:02:41,404 INFO L87 Difference]: Start difference. First operand 11349 states and 17797 transitions. Second operand 10 states. [2020-10-28 18:02:42,081 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:02:42,774 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:02:43,695 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:02:45,049 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 18:02:51,244 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:02:51,787 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:52,137 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:52,869 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:53,306 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:53,925 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:54,803 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:55,434 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:56,056 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:02:56,750 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:57,684 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:02:58,016 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:02:58,811 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:03:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:03:00,780 INFO L93 Difference]: Finished difference Result 43344 states and 68215 transitions. [2020-10-28 18:03:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:03:00,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-28 18:03:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:03:00,917 INFO L225 Difference]: With dead ends: 43344 [2020-10-28 18:03:00,917 INFO L226 Difference]: Without dead ends: 32458 [2020-10-28 18:03:00,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:03:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32458 states. [2020-10-28 18:03:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32458 to 28402. [2020-10-28 18:03:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28402 states. [2020-10-28 18:03:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28402 states to 28402 states and 44028 transitions. [2020-10-28 18:03:03,226 INFO L78 Accepts]: Start accepts. Automaton has 28402 states and 44028 transitions. Word has length 163 [2020-10-28 18:03:03,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:03:03,226 INFO L481 AbstractCegarLoop]: Abstraction has 28402 states and 44028 transitions. [2020-10-28 18:03:03,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:03:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 28402 states and 44028 transitions. [2020-10-28 18:03:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 18:03:03,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:03:03,273 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] [2020-10-28 18:03:03,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 18:03:03,274 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:03:03,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:03:03,274 INFO L82 PathProgramCache]: Analyzing trace with hash 116898460, now seen corresponding path program 1 times [2020-10-28 18:03:03,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:03:03,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283451918] [2020-10-28 18:03:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:03:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:03,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:03,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:03,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:04,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:08,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:03:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:03:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 18:03:08,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:08,992 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:03:08,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:03:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:03:09,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:03:09,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:03:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:03:09,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:03:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:03:09,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 18:03:09,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:03:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 18:03:09,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:03:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:03:09,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:03:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:03:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:03:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:03:09,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:03:09,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:03:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:03:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:09,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:03:09,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:03:09,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-28 18:03:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:03:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:03:09,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-28 18:03:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:09,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:09,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:09,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:03:09,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:03:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:03:09,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283451918] [2020-10-28 18:03:09,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:03:09,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:03:09,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355537248] [2020-10-28 18:03:09,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:03:09,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:03:09,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:03:09,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:03:09,616 INFO L87 Difference]: Start difference. First operand 28402 states and 44028 transitions. Second operand 10 states. [2020-10-28 18:03:10,301 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:03:11,005 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2020-10-28 18:03:12,460 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 294 DAG size of output: 288 [2020-10-28 18:03:13,188 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2020-10-28 18:03:22,349 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:03:22,850 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:03:23,218 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:03:23,780 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:03:24,307 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:03:25,009 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:03:25,720 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:03:26,385 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:03:27,090 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:03:27,683 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:03:28,587 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:03:28,862 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:03:29,360 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:03:32,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:03:32,112 INFO L93 Difference]: Finished difference Result 112947 states and 175574 transitions. [2020-10-28 18:03:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:03:32,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-28 18:03:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:03:32,438 INFO L225 Difference]: With dead ends: 112947 [2020-10-28 18:03:32,438 INFO L226 Difference]: Without dead ends: 86007 [2020-10-28 18:03:32,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 18:03:32,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86007 states. [2020-10-28 18:03:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86007 to 75713. [2020-10-28 18:03:38,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75713 states. [2020-10-28 18:03:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75713 states to 75713 states and 116255 transitions. [2020-10-28 18:03:39,026 INFO L78 Accepts]: Start accepts. Automaton has 75713 states and 116255 transitions. Word has length 164 [2020-10-28 18:03:39,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:03:39,026 INFO L481 AbstractCegarLoop]: Abstraction has 75713 states and 116255 transitions. [2020-10-28 18:03:39,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 18:03:39,026 INFO L276 IsEmpty]: Start isEmpty. Operand 75713 states and 116255 transitions. [2020-10-28 18:03:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-28 18:03:39,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:03:39,108 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] [2020-10-28 18:03:39,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 18:03:39,109 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:03:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:03:39,109 INFO L82 PathProgramCache]: Analyzing trace with hash 366617948, now seen corresponding path program 1 times [2020-10-28 18:03:39,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:03:39,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482810176] [2020-10-28 18:03:39,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:03:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:39,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:39,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:39,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:41,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:44,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:44,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:03:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 18:03:44,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:44,975 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-28 18:03:44,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:03:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:44,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:03:44,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:03:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 18:03:45,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 18:03:45,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:03:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:03:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-28 18:03:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:03:45,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:03:45,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:03:45,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 18:03:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:03:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-28 18:03:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:45,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:03:45,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:03:45,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 18:03:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:03:45,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 18:03:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:03:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 18:03:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:03:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-28 18:03:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:03:45,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:03:45,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:03:45,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:03:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:03:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:03:45,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482810176] [2020-10-28 18:03:45,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:03:45,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 18:03:45,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105437810] [2020-10-28 18:03:45,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 18:03:45,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:03:45,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 18:03:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:03:45,574 INFO L87 Difference]: Start difference. First operand 75713 states and 116255 transitions. Second operand 10 states. [2020-10-28 18:03:46,274 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-28 18:03:46,990 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-28 18:03:48,001 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-28 18:03:49,478 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-28 18:04:02,731 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-28 18:04:03,522 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:04:03,965 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:04:04,572 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:04:05,079 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:04:05,782 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 18:04:06,649 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-28 18:04:07,489 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-28 18:04:08,123 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118