/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:18:48,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:18:48,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:18:48,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:18:48,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:18:48,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:18:48,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:18:48,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:18:48,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:18:48,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:18:48,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:18:48,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:18:48,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:18:48,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:18:48,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:18:48,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:18:48,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:18:48,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:18:48,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:18:48,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:18:48,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:18:48,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:18:48,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:18:48,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:18:48,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:18:48,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:18:48,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:18:48,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:18:48,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:18:48,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:18:48,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:18:48,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:18:48,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:18:48,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:18:48,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:18:48,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:18:48,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:18:48,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:18:48,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:18:48,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:18:48,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:18:48,775 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 [2020-10-14 19:18:48,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:18:48,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:18:48,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:18:48,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:18:48,814 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:18:48,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:18:48,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:18:48,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:18:48,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:18:48,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:18:48,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:18:48,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:18:48,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:18:48,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:18:48,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:18:48,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:18:48,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:18:48,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:18:48,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:18:48,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:18:48,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:18:48,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:18:48,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:18:48,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:18:48,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:18:48,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:18:48,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:18:48,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:18:48,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:18:48,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:18:49,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:18:49,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:18:49,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:18:49,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:18:49,105 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:18:49,105 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label59.c [2020-10-14 19:18:49,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a787dd7c/bee5908fba704286bf1b94492dacce8c/FLAGe0ff71c61 [2020-10-14 19:18:49,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:18:49,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label59.c [2020-10-14 19:18:49,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a787dd7c/bee5908fba704286bf1b94492dacce8c/FLAGe0ff71c61 [2020-10-14 19:18:49,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a787dd7c/bee5908fba704286bf1b94492dacce8c [2020-10-14 19:18:49,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:18:49,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:18:49,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:18:49,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:18:49,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:18:49,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:18:49" (1/1) ... [2020-10-14 19:18:50,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:49, skipping insertion in model container [2020-10-14 19:18:50,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:18:49" (1/1) ... [2020-10-14 19:18:50,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:18:50,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:18:50,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:18:50,963 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:18:51,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:18:51,443 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:18:51,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51 WrapperNode [2020-10-14 19:18:51,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:18:51,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:18:51,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:18:51,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:18:51,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (1/1) ... [2020-10-14 19:18:51,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:18:51,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:18:51,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:18:51,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:18:51,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (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 [2020-10-14 19:18:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:18:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:18:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:18:51,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:18:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:18:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:18:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:18:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:18:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:18:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:18:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:18:53,432 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:18:53,432 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:18:53,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:18:53 BoogieIcfgContainer [2020-10-14 19:18:53,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:18:53,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:18:53,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:18:53,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:18:53,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:18:49" (1/3) ... [2020-10-14 19:18:53,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5115a45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:18:53, skipping insertion in model container [2020-10-14 19:18:53,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:18:51" (2/3) ... [2020-10-14 19:18:53,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5115a45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:18:53, skipping insertion in model container [2020-10-14 19:18:53,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:18:53" (3/3) ... [2020-10-14 19:18:53,448 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label59.c [2020-10-14 19:18:53,458 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:18:53,465 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:18:53,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:18:53,508 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:18:53,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:18:53,509 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:18:53,509 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:18:53,509 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:18:53,509 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:18:53,509 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:18:53,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:18:53,534 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-14 19:18:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-14 19:18:53,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:18:53,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:18:53,552 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:18:53,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:18:53,558 INFO L82 PathProgramCache]: Analyzing trace with hash -499316579, now seen corresponding path program 1 times [2020-10-14 19:18:53,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:18:53,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296161577] [2020-10-14 19:18:53,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:18:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:18:54,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:18:54,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:18:57,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:18:57,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 19:18:57,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:18:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3391 [2020-10-14 19:18:57,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:18:57,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:18:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:18:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:18:57,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 19:18:57,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:18:57,781 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:18:57,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:18:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:18:57,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:18:57,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:18:57,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:18:57,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:18:57,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 19:18:57,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:18:57,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:18:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:18:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:18:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:18:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:18:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:18:57,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296161577] [2020-10-14 19:18:57,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:18:57,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:18:57,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605029185] [2020-10-14 19:18:57,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:18:57,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:18:57,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:18:57,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:18:57,932 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 4 states. [2020-10-14 19:18:58,100 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 19:19:00,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:00,543 INFO L93 Difference]: Finished difference Result 869 states and 1530 transitions. [2020-10-14 19:19:00,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:19:00,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2020-10-14 19:19:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:00,567 INFO L225 Difference]: With dead ends: 869 [2020-10-14 19:19:00,567 INFO L226 Difference]: Without dead ends: 480 [2020-10-14 19:19:00,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:19:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-14 19:19:00,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 461. [2020-10-14 19:19:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-14 19:19:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 735 transitions. [2020-10-14 19:19:00,663 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 735 transitions. Word has length 180 [2020-10-14 19:19:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:00,664 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 735 transitions. [2020-10-14 19:19:00,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:19:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 735 transitions. [2020-10-14 19:19:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-14 19:19:00,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:00,671 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:00,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:19:00,671 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash 29259444, now seen corresponding path program 1 times [2020-10-14 19:19:00,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:00,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281805656] [2020-10-14 19:19:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:00,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:01,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:02,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:02,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 19:19:02,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:19:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2008 [2020-10-14 19:19:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:02,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 19:19:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 19:19:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:02,987 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:19:02,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:02,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:03,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:03,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:03,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:03,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:19:03,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:03,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:03,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:03,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:03,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:03,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:03,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:03,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:03,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:19:03,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:19:03,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:03,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:19:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:03,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281805656] [2020-10-14 19:19:03,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:03,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:19:03,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55742750] [2020-10-14 19:19:03,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:19:03,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:03,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:19:03,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:19:03,159 INFO L87 Difference]: Start difference. First operand 461 states and 735 transitions. Second operand 5 states. [2020-10-14 19:19:03,291 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:05,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:05,845 INFO L93 Difference]: Finished difference Result 1345 states and 2171 transitions. [2020-10-14 19:19:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:19:05,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2020-10-14 19:19:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:05,860 INFO L225 Difference]: With dead ends: 1345 [2020-10-14 19:19:05,860 INFO L226 Difference]: Without dead ends: 890 [2020-10-14 19:19:05,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:19:05,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-14 19:19:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 884. [2020-10-14 19:19:05,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-10-14 19:19:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1366 transitions. [2020-10-14 19:19:05,933 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1366 transitions. Word has length 190 [2020-10-14 19:19:05,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:05,935 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 1366 transitions. [2020-10-14 19:19:05,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:19:05,935 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1366 transitions. [2020-10-14 19:19:05,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-14 19:19:05,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:05,943 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:05,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:19:05,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:05,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1518193061, now seen corresponding path program 1 times [2020-10-14 19:19:05,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:05,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081877181] [2020-10-14 19:19:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:06,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:06,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:08,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:08,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-14 19:19:08,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:19:08,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2738 [2020-10-14 19:19:08,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:08,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:08,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:08,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 19:19:08,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 19:19:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:09,024 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:19:09,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:09,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:09,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:09,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:09,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:09,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:19:09,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:09,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:09,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:19:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:09,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:09,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:09,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 19:19:09,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 19:19:09,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:09,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 19:19:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:09,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081877181] [2020-10-14 19:19:09,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:09,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:19:09,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017942530] [2020-10-14 19:19:09,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:19:09,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:09,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:19:09,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:19:09,308 INFO L87 Difference]: Start difference. First operand 884 states and 1366 transitions. Second operand 5 states. [2020-10-14 19:19:09,701 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 19:19:12,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:12,256 INFO L93 Difference]: Finished difference Result 2608 states and 4089 transitions. [2020-10-14 19:19:12,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:19:12,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-14 19:19:12,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:12,270 INFO L225 Difference]: With dead ends: 2608 [2020-10-14 19:19:12,270 INFO L226 Difference]: Without dead ends: 1730 [2020-10-14 19:19:12,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:19:12,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2020-10-14 19:19:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1722. [2020-10-14 19:19:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1722 states. [2020-10-14 19:19:12,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2523 transitions. [2020-10-14 19:19:12,326 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2523 transitions. Word has length 194 [2020-10-14 19:19:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:12,327 INFO L479 AbstractCegarLoop]: Abstraction has 1722 states and 2523 transitions. [2020-10-14 19:19:12,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:19:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2523 transitions. [2020-10-14 19:19:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-14 19:19:12,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:12,333 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:12,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:19:12,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash -318410943, now seen corresponding path program 1 times [2020-10-14 19:19:12,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:12,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115300386] [2020-10-14 19:19:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:12,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:12,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:13,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:13,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-14 19:19:13,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:19:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1437 [2020-10-14 19:19:13,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:13,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 19:19:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 19:19:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:14,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:14,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:14,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:14,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:14,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:19:14,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:14,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:14,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:14,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:14,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:19:14,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:14,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:14,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:14,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 19:19:14,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:14,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 19:19:14,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:14,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:19:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:14,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115300386] [2020-10-14 19:19:14,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:14,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:19:14,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662227848] [2020-10-14 19:19:14,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:19:14,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:14,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:19:14,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:19:14,399 INFO L87 Difference]: Start difference. First operand 1722 states and 2523 transitions. Second operand 5 states. [2020-10-14 19:19:14,665 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:19:17,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:17,186 INFO L93 Difference]: Finished difference Result 4914 states and 7391 transitions. [2020-10-14 19:19:17,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:19:17,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2020-10-14 19:19:17,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:17,207 INFO L225 Difference]: With dead ends: 4914 [2020-10-14 19:19:17,208 INFO L226 Difference]: Without dead ends: 3198 [2020-10-14 19:19:17,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:19:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2020-10-14 19:19:17,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 3189. [2020-10-14 19:19:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2020-10-14 19:19:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4625 transitions. [2020-10-14 19:19:17,330 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4625 transitions. Word has length 196 [2020-10-14 19:19:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:17,331 INFO L479 AbstractCegarLoop]: Abstraction has 3189 states and 4625 transitions. [2020-10-14 19:19:17,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:19:17,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4625 transitions. [2020-10-14 19:19:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-14 19:19:17,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:17,342 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:17,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:19:17,342 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:17,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash 67262110, now seen corresponding path program 1 times [2020-10-14 19:19:17,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:17,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805854347] [2020-10-14 19:19:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:17,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:18,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:19,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-14 19:19:19,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:19:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1657 [2020-10-14 19:19:19,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:19,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 19:19:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 19:19:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:19,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:19,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:19,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:19,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:19,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:19,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:19:19,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:19,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:19,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:19,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:19,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:19,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:19,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:19,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:19,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 19:19:19,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:19,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 19:19:19,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:19,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:19,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:19:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:19:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:19,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805854347] [2020-10-14 19:19:19,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:19,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:19:19,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908133639] [2020-10-14 19:19:19,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:19:19,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:19,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:19:19,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:19:19,517 INFO L87 Difference]: Start difference. First operand 3189 states and 4625 transitions. Second operand 5 states. [2020-10-14 19:19:19,815 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:22,432 INFO L93 Difference]: Finished difference Result 9111 states and 13605 transitions. [2020-10-14 19:19:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:19:22,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2020-10-14 19:19:22,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:22,462 INFO L225 Difference]: With dead ends: 9111 [2020-10-14 19:19:22,462 INFO L226 Difference]: Without dead ends: 5928 [2020-10-14 19:19:22,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:19:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2020-10-14 19:19:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5909. [2020-10-14 19:19:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5909 states. [2020-10-14 19:19:22,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5909 states to 5909 states and 8745 transitions. [2020-10-14 19:19:22,655 INFO L78 Accepts]: Start accepts. Automaton has 5909 states and 8745 transitions. Word has length 203 [2020-10-14 19:19:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:22,656 INFO L479 AbstractCegarLoop]: Abstraction has 5909 states and 8745 transitions. [2020-10-14 19:19:22,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:19:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5909 states and 8745 transitions. [2020-10-14 19:19:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-14 19:19:22,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:22,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:22,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:19:22,675 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:22,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:22,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1346850346, now seen corresponding path program 1 times [2020-10-14 19:19:22,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:22,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149268914] [2020-10-14 19:19:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:22,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:23,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:24,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:24,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 19:19:24,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:19:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2034 [2020-10-14 19:19:24,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:24,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 19:19:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 19:19:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:25,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:25,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:25,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:19:25,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:25,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:25,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:25,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:25,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:25,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 19:19:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:25,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149268914] [2020-10-14 19:19:25,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:25,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:19:25,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518111507] [2020-10-14 19:19:25,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:19:25,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:25,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:19:25,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:19:25,225 INFO L87 Difference]: Start difference. First operand 5909 states and 8745 transitions. Second operand 5 states. [2020-10-14 19:19:25,369 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:19:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:27,847 INFO L93 Difference]: Finished difference Result 16009 states and 24584 transitions. [2020-10-14 19:19:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:19:27,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2020-10-14 19:19:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:27,897 INFO L225 Difference]: With dead ends: 16009 [2020-10-14 19:19:27,898 INFO L226 Difference]: Without dead ends: 10106 [2020-10-14 19:19:27,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:19:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2020-10-14 19:19:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 10100. [2020-10-14 19:19:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10100 states. [2020-10-14 19:19:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10100 states to 10100 states and 15027 transitions. [2020-10-14 19:19:28,341 INFO L78 Accepts]: Start accepts. Automaton has 10100 states and 15027 transitions. Word has length 214 [2020-10-14 19:19:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:28,342 INFO L479 AbstractCegarLoop]: Abstraction has 10100 states and 15027 transitions. [2020-10-14 19:19:28,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:19:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10100 states and 15027 transitions. [2020-10-14 19:19:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-14 19:19:28,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:28,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:28,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:19:28,370 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:28,370 INFO L82 PathProgramCache]: Analyzing trace with hash 422449694, now seen corresponding path program 1 times [2020-10-14 19:19:28,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:28,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953001357] [2020-10-14 19:19:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:28,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:29,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:29,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 19:19:29,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:29,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-10-14 19:19:29,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:29,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:19:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:19:29,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 19:19:29,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:19:29,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:29,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:29,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:19:29,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:29,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:19:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:29,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:29,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:29,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:19:29,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 19:19:29,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:29,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:19:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 19:19:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:29,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953001357] [2020-10-14 19:19:29,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:19:29,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 19:19:29,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476625014] [2020-10-14 19:19:29,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:19:29,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:29,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:19:29,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:19:29,545 INFO L87 Difference]: Start difference. First operand 10100 states and 15027 transitions. Second operand 7 states. [2020-10-14 19:19:29,679 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:30,010 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:32,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:32,423 INFO L93 Difference]: Finished difference Result 19514 states and 30441 transitions. [2020-10-14 19:19:32,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:19:32,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-10-14 19:19:32,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:32,474 INFO L225 Difference]: With dead ends: 19514 [2020-10-14 19:19:32,474 INFO L226 Difference]: Without dead ends: 9420 [2020-10-14 19:19:32,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:19:32,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9420 states. [2020-10-14 19:19:32,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9420 to 9340. [2020-10-14 19:19:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9340 states. [2020-10-14 19:19:32,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9340 states to 9340 states and 12643 transitions. [2020-10-14 19:19:32,773 INFO L78 Accepts]: Start accepts. Automaton has 9340 states and 12643 transitions. Word has length 226 [2020-10-14 19:19:32,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:32,773 INFO L479 AbstractCegarLoop]: Abstraction has 9340 states and 12643 transitions. [2020-10-14 19:19:32,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:19:32,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9340 states and 12643 transitions. [2020-10-14 19:19:32,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-14 19:19:32,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:32,798 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:32,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:19:32,798 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:32,799 INFO L82 PathProgramCache]: Analyzing trace with hash -453400524, now seen corresponding path program 1 times [2020-10-14 19:19:32,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:32,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859810124] [2020-10-14 19:19:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:33,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:35,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:37,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:37,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4732 [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 19:19:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 229 [2020-10-14 19:19:37,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:37,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:37,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:37,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:37,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:37,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:19:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:37,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:37,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:37,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:37,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 19:19:37,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 19:19:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:37,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 19:19:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 19:19:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:37,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:38,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:19:38,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:19:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 19:19:38,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:38,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:19:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 19:19:38,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:19:38,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859810124] [2020-10-14 19:19:38,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:38,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:19:38,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539862538] [2020-10-14 19:19:38,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:19:38,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:38,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:19:38,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:19:38,126 INFO L87 Difference]: Start difference. First operand 9340 states and 12643 transitions. Second operand 6 states. [2020-10-14 19:19:38,363 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:40,707 INFO L93 Difference]: Finished difference Result 24699 states and 35136 transitions. [2020-10-14 19:19:40,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 19:19:40,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 250 [2020-10-14 19:19:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:40,778 INFO L225 Difference]: With dead ends: 24699 [2020-10-14 19:19:40,779 INFO L226 Difference]: Without dead ends: 15365 [2020-10-14 19:19:40,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:19:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15365 states. [2020-10-14 19:19:41,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15365 to 15228. [2020-10-14 19:19:41,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15228 states. [2020-10-14 19:19:41,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15228 states to 15228 states and 20252 transitions. [2020-10-14 19:19:41,302 INFO L78 Accepts]: Start accepts. Automaton has 15228 states and 20252 transitions. Word has length 250 [2020-10-14 19:19:41,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:41,303 INFO L479 AbstractCegarLoop]: Abstraction has 15228 states and 20252 transitions. [2020-10-14 19:19:41,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:19:41,303 INFO L276 IsEmpty]: Start isEmpty. Operand 15228 states and 20252 transitions. [2020-10-14 19:19:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-14 19:19:41,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:41,341 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:41,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:19:41,342 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:41,342 INFO L82 PathProgramCache]: Analyzing trace with hash -217131977, now seen corresponding path program 1 times [2020-10-14 19:19:41,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:41,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266329388] [2020-10-14 19:19:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:41,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:44,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2828 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 19:19:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 19:19:44,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:44,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:44,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:44,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:19:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:19:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:44,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:44,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:44,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:44,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 19:19:44,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 19:19:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:44,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:19:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 19:19:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 19:19:44,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266329388] [2020-10-14 19:19:44,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:19:44,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:19:44,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779860746] [2020-10-14 19:19:44,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:19:44,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:44,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:19:44,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:19:44,661 INFO L87 Difference]: Start difference. First operand 15228 states and 20252 transitions. Second operand 7 states. [2020-10-14 19:19:44,904 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:45,101 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:49,156 INFO L93 Difference]: Finished difference Result 57083 states and 82638 transitions. [2020-10-14 19:19:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:19:49,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-14 19:19:49,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:49,329 INFO L225 Difference]: With dead ends: 57083 [2020-10-14 19:19:49,329 INFO L226 Difference]: Without dead ends: 41861 [2020-10-14 19:19:49,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:19:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41861 states. [2020-10-14 19:19:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41861 to 41841. [2020-10-14 19:19:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41841 states. [2020-10-14 19:19:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41841 states to 41841 states and 60225 transitions. [2020-10-14 19:19:50,659 INFO L78 Accepts]: Start accepts. Automaton has 41841 states and 60225 transitions. Word has length 269 [2020-10-14 19:19:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:50,659 INFO L479 AbstractCegarLoop]: Abstraction has 41841 states and 60225 transitions. [2020-10-14 19:19:50,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:19:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 41841 states and 60225 transitions. [2020-10-14 19:19:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-14 19:19:50,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:50,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:50,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:19:50,761 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:50,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1623564151, now seen corresponding path program 1 times [2020-10-14 19:19:50,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:50,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742037734] [2020-10-14 19:19:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:50,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:51,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:51,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-14 19:19:51,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:51,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 949 [2020-10-14 19:19:51,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:51,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:19:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:19:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 19:19:51,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:19:51,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:19:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:51,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:51,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:51,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:19:51,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:51,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:19:51,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:51,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:19:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:19:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:19:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:51,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:19:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:52,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:52,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:19:52,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 19:19:52,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:19:52,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 19:19:52,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:19:52,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:19:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:19:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:19:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 19:19:52,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:19:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:19:52,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742037734] [2020-10-14 19:19:52,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:19:52,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 19:19:52,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152083771] [2020-10-14 19:19:52,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:19:52,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:19:52,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:19:52,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:19:52,378 INFO L87 Difference]: Start difference. First operand 41841 states and 60225 transitions. Second operand 7 states. [2020-10-14 19:19:52,496 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:52,841 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:19:55,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:19:55,351 INFO L93 Difference]: Finished difference Result 84321 states and 126641 transitions. [2020-10-14 19:19:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:19:55,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 290 [2020-10-14 19:19:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:19:55,503 INFO L225 Difference]: With dead ends: 84321 [2020-10-14 19:19:55,503 INFO L226 Difference]: Without dead ends: 42494 [2020-10-14 19:19:55,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:19:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42494 states. [2020-10-14 19:19:56,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42494 to 41899. [2020-10-14 19:19:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41899 states. [2020-10-14 19:19:56,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41899 states to 41899 states and 57300 transitions. [2020-10-14 19:19:56,882 INFO L78 Accepts]: Start accepts. Automaton has 41899 states and 57300 transitions. Word has length 290 [2020-10-14 19:19:56,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:19:56,882 INFO L479 AbstractCegarLoop]: Abstraction has 41899 states and 57300 transitions. [2020-10-14 19:19:56,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:19:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 41899 states and 57300 transitions. [2020-10-14 19:19:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-14 19:19:56,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:19:56,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:19:56,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 19:19:56,999 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:19:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:19:56,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2010290717, now seen corresponding path program 1 times [2020-10-14 19:19:57,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:19:57,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679964310] [2020-10-14 19:19:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:19:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:19:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:57,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:19:57,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:01,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4230 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 19:20:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 19:20:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:01,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:20:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:01,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:01,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:01,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:20:01,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:01,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:01,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:20:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:01,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:01,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 19:20:01,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 19:20:01,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:01,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:20:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 19:20:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:01,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 19:20:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:01,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:01,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 19:20:01,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 19:20:01,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:01,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 19:20:01,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 19:20:01,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679964310] [2020-10-14 19:20:01,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:20:01,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:20:01,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088625113] [2020-10-14 19:20:01,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:20:01,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:20:01,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:20:01,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:20:01,989 INFO L87 Difference]: Start difference. First operand 41899 states and 57300 transitions. Second operand 7 states. [2020-10-14 19:20:02,129 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:20:03,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:20:03,911 INFO L93 Difference]: Finished difference Result 75675 states and 103343 transitions. [2020-10-14 19:20:03,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:20:03,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 302 [2020-10-14 19:20:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:20:04,007 INFO L225 Difference]: With dead ends: 75675 [2020-10-14 19:20:04,007 INFO L226 Difference]: Without dead ends: 33790 [2020-10-14 19:20:04,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:20:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33790 states. [2020-10-14 19:20:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33790 to 33143. [2020-10-14 19:20:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33143 states. [2020-10-14 19:20:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33143 states to 33143 states and 43116 transitions. [2020-10-14 19:20:05,222 INFO L78 Accepts]: Start accepts. Automaton has 33143 states and 43116 transitions. Word has length 302 [2020-10-14 19:20:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:20:05,223 INFO L479 AbstractCegarLoop]: Abstraction has 33143 states and 43116 transitions. [2020-10-14 19:20:05,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:20:05,223 INFO L276 IsEmpty]: Start isEmpty. Operand 33143 states and 43116 transitions. [2020-10-14 19:20:05,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-14 19:20:05,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:20:05,318 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:20:05,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 19:20:05,318 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:20:05,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:20:05,319 INFO L82 PathProgramCache]: Analyzing trace with hash 475884296, now seen corresponding path program 1 times [2020-10-14 19:20:05,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:20:05,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583123976] [2020-10-14 19:20:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:20:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:05,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:05,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:05,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:05,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:08,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:10,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:10,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-14 19:20:10,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:20:10,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 19:20:10,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:10,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:10,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 19:20:10,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 19:20:10,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 19:20:10,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:20:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:10,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:20:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:20:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:10,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:20:10,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:20:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:10,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:10,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 19:20:10,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:10,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 19:20:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:10,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:10,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:10,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:10,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:10,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:20:10,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:10,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:10,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:20:10,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:10,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 19:20:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:10,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:11,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:11,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:20:11,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:11,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 19:20:11,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:11,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:20:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:20:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:11,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 19:20:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:11,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:11,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:11,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:20:11,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 19:20:11,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:11,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 19:20:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 238 proven. 53 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 19:20:11,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583123976] [2020-10-14 19:20:11,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:20:11,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 19:20:11,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191729045] [2020-10-14 19:20:11,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 19:20:11,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:20:11,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 19:20:11,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:20:11,566 INFO L87 Difference]: Start difference. First operand 33143 states and 43116 transitions. Second operand 11 states. [2020-10-14 19:20:11,699 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:20:11,986 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 19:20:12,122 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:20:13,778 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:20:16,349 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:20:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:20:19,491 INFO L93 Difference]: Finished difference Result 111226 states and 168232 transitions. [2020-10-14 19:20:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 19:20:19,492 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 351 [2020-10-14 19:20:19,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:20:19,910 INFO L225 Difference]: With dead ends: 111226 [2020-10-14 19:20:19,910 INFO L226 Difference]: Without dead ends: 78248 [2020-10-14 19:20:20,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 19:20:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78248 states. [2020-10-14 19:20:22,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78248 to 72687. [2020-10-14 19:20:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72687 states. [2020-10-14 19:20:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72687 states to 72687 states and 93886 transitions. [2020-10-14 19:20:22,389 INFO L78 Accepts]: Start accepts. Automaton has 72687 states and 93886 transitions. Word has length 351 [2020-10-14 19:20:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:20:22,390 INFO L479 AbstractCegarLoop]: Abstraction has 72687 states and 93886 transitions. [2020-10-14 19:20:22,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 19:20:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 72687 states and 93886 transitions. [2020-10-14 19:20:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-10-14 19:20:22,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:20:22,513 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:20:22,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 19:20:22,514 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:20:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:20:22,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1090194337, now seen corresponding path program 1 times [2020-10-14 19:20:22,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:20:22,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195990933] [2020-10-14 19:20:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:20:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:22,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:24,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:24,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:24,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:27,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:27,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-14 19:20:27,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:20:27,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-14 19:20:27,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:27,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:27,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:20:27,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:20:27,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 19:20:27,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:20:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:27,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:27,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:20:27,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:27,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:20:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:28,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:28,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 19:20:28,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 19:20:28,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:28,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 19:20:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:28,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 19:20:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:28,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:28,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:28,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 19:20:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:28,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:28,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:28,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 19:20:28,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:28,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:20:28,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:28,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:28,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:28,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 19:20:28,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:28,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:28,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 19:20:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:28,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:28,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 19:20:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:28,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:28,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 19:20:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:28,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:28,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:20:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 19:20:28,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:28,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 19:20:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:28,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:28,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 19:20:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:28,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:28,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:28,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 175 proven. 93 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-14 19:20:28,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195990933] [2020-10-14 19:20:28,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:20:28,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:20:28,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129341785] [2020-10-14 19:20:28,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:20:28,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:20:28,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:20:28,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:20:28,424 INFO L87 Difference]: Start difference. First operand 72687 states and 93886 transitions. Second operand 7 states. [2020-10-14 19:20:28,562 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:20:29,297 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 19:20:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:20:31,589 INFO L93 Difference]: Finished difference Result 147510 states and 190125 transitions. [2020-10-14 19:20:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:20:31,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 379 [2020-10-14 19:20:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:20:31,835 INFO L225 Difference]: With dead ends: 147510 [2020-10-14 19:20:31,836 INFO L226 Difference]: Without dead ends: 75299 [2020-10-14 19:20:31,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:20:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75299 states. [2020-10-14 19:20:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75299 to 75245. [2020-10-14 19:20:33,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75245 states. [2020-10-14 19:20:33,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75245 states to 75245 states and 96803 transitions. [2020-10-14 19:20:33,620 INFO L78 Accepts]: Start accepts. Automaton has 75245 states and 96803 transitions. Word has length 379 [2020-10-14 19:20:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:20:33,620 INFO L479 AbstractCegarLoop]: Abstraction has 75245 states and 96803 transitions. [2020-10-14 19:20:33,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:20:33,620 INFO L276 IsEmpty]: Start isEmpty. Operand 75245 states and 96803 transitions. [2020-10-14 19:20:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2020-10-14 19:20:33,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:20:33,723 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:20:33,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 19:20:33,724 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:20:33,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:20:33,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1889478790, now seen corresponding path program 1 times [2020-10-14 19:20:33,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:20:33,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765698063] [2020-10-14 19:20:33,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:20:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:33,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:33,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:33,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:34,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:34,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:34,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:34,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:34,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:38,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 412 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:20:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 19:20:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:38,954 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:20:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:20:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:38,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:38,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:38,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:20:38,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:38,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:20:38,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:38,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:38,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:38,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:38,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:38,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:20:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:20:39,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:20:39,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:20:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:20:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:20:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 19:20:39,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 19:20:39,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:20:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 19:20:39,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 19:20:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:39,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:39,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 19:20:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 19:20:39,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:20:39,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 19:20:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 19:20:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:39,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:20:39,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:39,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 19:20:39,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:39,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 19:20:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:39,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-14 19:20:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:39,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:39,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:39,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:20:39,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:39,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 19:20:39,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:39,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 19:20:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:39,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 211 proven. 105 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2020-10-14 19:20:39,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765698063] [2020-10-14 19:20:39,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:20:39,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:20:39,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969141959] [2020-10-14 19:20:39,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:20:39,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:20:39,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:20:39,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:20:39,487 INFO L87 Difference]: Start difference. First operand 75245 states and 96803 transitions. Second operand 7 states. [2020-10-14 19:20:39,620 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 19:20:40,352 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:20:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:20:43,789 INFO L93 Difference]: Finished difference Result 155956 states and 212454 transitions. [2020-10-14 19:20:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:20:43,790 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 390 [2020-10-14 19:20:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:20:44,131 INFO L225 Difference]: With dead ends: 155956 [2020-10-14 19:20:44,131 INFO L226 Difference]: Without dead ends: 91866 [2020-10-14 19:20:44,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:20:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91866 states. [2020-10-14 19:20:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91866 to 89516. [2020-10-14 19:20:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89516 states. [2020-10-14 19:20:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89516 states to 89516 states and 112716 transitions. [2020-10-14 19:20:48,585 INFO L78 Accepts]: Start accepts. Automaton has 89516 states and 112716 transitions. Word has length 390 [2020-10-14 19:20:48,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:20:48,586 INFO L479 AbstractCegarLoop]: Abstraction has 89516 states and 112716 transitions. [2020-10-14 19:20:48,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:20:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 89516 states and 112716 transitions. [2020-10-14 19:20:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-10-14 19:20:48,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:20:48,710 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:20:48,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 19:20:48,710 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:20:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:20:48,710 INFO L82 PathProgramCache]: Analyzing trace with hash -35334133, now seen corresponding path program 1 times [2020-10-14 19:20:48,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:20:48,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501823761] [2020-10-14 19:20:48,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:20:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:48,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:48,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:48,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:49,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:49,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:50,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:53,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-14 19:20:53,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 19:20:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 19:20:53,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:53,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:20:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-14 19:20:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 19:20:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:53,986 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:20:53,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:20:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:53,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:53,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:53,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:20:53,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:20:53,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:53,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:54,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:20:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:54,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:54,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:54,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 19:20:54,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:54,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:20:54,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:54,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:54,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 19:20:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:54,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:54,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:54,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:54,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:20:54,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:54,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:54,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:54,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 19:20:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:54,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:54,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:54,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:54,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 19:20:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:54,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:54,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:54,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:20:54,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:54,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:20:54,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:54,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:20:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:20:54,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:54,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 19:20:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:54,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:54,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:20:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 19:20:54,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 19:20:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:20:54,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:20:54,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:20:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 19:20:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:20:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 323 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-14 19:20:56,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501823761] [2020-10-14 19:20:56,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:20:56,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:20:56,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811089908] [2020-10-14 19:20:56,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:20:56,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:20:56,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:20:56,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:20:56,444 INFO L87 Difference]: Start difference. First operand 89516 states and 112716 transitions. Second operand 8 states. [2020-10-14 19:20:57,257 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-14 19:20:57,436 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-14 19:20:58,128 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 148 [2020-10-14 19:20:59,363 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 140 [2020-10-14 19:21:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:21:03,291 INFO L93 Difference]: Finished difference Result 184562 states and 251350 transitions. [2020-10-14 19:21:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 19:21:03,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 402 [2020-10-14 19:21:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:21:03,660 INFO L225 Difference]: With dead ends: 184562 [2020-10-14 19:21:03,660 INFO L226 Difference]: Without dead ends: 109480 [2020-10-14 19:21:03,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2020-10-14 19:21:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109480 states. [2020-10-14 19:21:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109480 to 105564. [2020-10-14 19:21:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105564 states. [2020-10-14 19:21:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105564 states to 105564 states and 130833 transitions. [2020-10-14 19:21:05,827 INFO L78 Accepts]: Start accepts. Automaton has 105564 states and 130833 transitions. Word has length 402 [2020-10-14 19:21:05,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:21:05,828 INFO L479 AbstractCegarLoop]: Abstraction has 105564 states and 130833 transitions. [2020-10-14 19:21:05,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:21:05,828 INFO L276 IsEmpty]: Start isEmpty. Operand 105564 states and 130833 transitions. [2020-10-14 19:21:06,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-10-14 19:21:06,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:21:06,378 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:21:06,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 19:21:06,378 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:21:06,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:21:06,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1583908638, now seen corresponding path program 1 times [2020-10-14 19:21:06,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:21:06,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507122892] [2020-10-14 19:21:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:21:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:06,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:06,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:09,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 557 [2020-10-14 19:21:11,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 19:21:11,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 19:21:11,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:21:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 19:21:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 19:21:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,669 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:21:11,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:21:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:11,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:21:11,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:21:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:21:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:11,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 19:21:11,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 19:21:11,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:21:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:21:11,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 19:21:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:11,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:21:11,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:21:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 19:21:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:11,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 19:21:11,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 19:21:11,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:21:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 19:21:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 19:21:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:11,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:21:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:21:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:21:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 19:21:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:11,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:11,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:11,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:21:11,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:21:11,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:11,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 19:21:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:12,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:21:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:21:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 19:21:12,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:12,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2020-10-14 19:21:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:12,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 19:21:12,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:21:12,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:21:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 560 proven. 121 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-14 19:21:12,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507122892] [2020-10-14 19:21:12,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:21:12,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 19:21:12,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506730290] [2020-10-14 19:21:12,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 19:21:12,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:21:12,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 19:21:12,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 19:21:12,550 INFO L87 Difference]: Start difference. First operand 105564 states and 130833 transitions. Second operand 9 states. [2020-10-14 19:21:12,845 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:21:15,205 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:21:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:21:21,106 INFO L93 Difference]: Finished difference Result 245890 states and 331016 transitions. [2020-10-14 19:21:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 19:21:21,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 535 [2020-10-14 19:21:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:21:21,107 INFO L225 Difference]: With dead ends: 245890 [2020-10-14 19:21:21,108 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 19:21:21,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-14 19:21:21,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 19:21:21,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 19:21:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 19:21:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 19:21:21,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 535 [2020-10-14 19:21:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:21:21,410 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 19:21:21,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 19:21:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 19:21:21,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 19:21:21,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 19:21:21,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 19:21:24,902 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-14 19:21:28,455 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 141