/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=BIGGEST --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/Problem18_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:59:27,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:59:27,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:59:27,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:59:27,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:59:27,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:59:27,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:59:27,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:59:27,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:59:27,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:59:27,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:59:27,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:59:27,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:59:27,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:59:27,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:59:27,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:59:27,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:59:27,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:59:27,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:59:27,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:59:27,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:59:27,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:59:27,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:59:27,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:59:27,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:59:27,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:59:27,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:59:27,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:59:27,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:59:27,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:59:27,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:59:27,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:59:27,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:59:27,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:59:27,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:59:27,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:59:27,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:59:27,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:59:27,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:59:27,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:59:27,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:59:27,632 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 [2020-10-12 14:59:27,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:59:27,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:59:27,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:59:27,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:59:27,679 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:59:27,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:59:27,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:59:27,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:59:27,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:59:27,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:59:27,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:59:27,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:59:27,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:59:27,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:59:27,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:59:27,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:59:27,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:59:27,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:59:27,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:59:27,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:59:27,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:59:27,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:59:27,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:59:27,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:59:27,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:59:27,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:59:27,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:59:27,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:59:27,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:59:27,685 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:59:27,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:59:27,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:59:27,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:59:27,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:59:27,962 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:59:27,962 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label23.c [2020-10-12 14:59:28,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc513e31f/fffae35a0b2f469c8a17b2aa810fa6b9/FLAGc963a1732 [2020-10-12 14:59:28,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:59:28,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label23.c [2020-10-12 14:59:28,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc513e31f/fffae35a0b2f469c8a17b2aa810fa6b9/FLAGc963a1732 [2020-10-12 14:59:28,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc513e31f/fffae35a0b2f469c8a17b2aa810fa6b9 [2020-10-12 14:59:28,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:59:28,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:59:28,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:59:28,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:59:28,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:59:28,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:59:28" (1/1) ... [2020-10-12 14:59:28,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742d25d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:28, skipping insertion in model container [2020-10-12 14:59:28,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:59:28" (1/1) ... [2020-10-12 14:59:28,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:59:29,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:59:30,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:59:30,304 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:59:30,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:59:30,788 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:59:30,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30 WrapperNode [2020-10-12 14:59:30,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:59:30,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:59:30,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:59:30,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:59:30,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:30,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:30,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:30,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:30,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:30,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:31,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... [2020-10-12 14:59:31,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:59:31,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:59:31,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:59:31,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:59:31,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:59:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:59:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:59:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:59:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:59:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 14:59:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:59:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:59:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:59:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 14:59:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:59:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:59:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:59:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:59:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:59:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:59:36,807 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:59:36,807 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:59:36,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:59:36 BoogieIcfgContainer [2020-10-12 14:59:36,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:59:36,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:59:36,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:59:36,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:59:36,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:59:28" (1/3) ... [2020-10-12 14:59:36,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1692d0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:59:36, skipping insertion in model container [2020-10-12 14:59:36,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:30" (2/3) ... [2020-10-12 14:59:36,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1692d0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:59:36, skipping insertion in model container [2020-10-12 14:59:36,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:59:36" (3/3) ... [2020-10-12 14:59:36,837 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label23.c [2020-10-12 14:59:36,850 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:59:36,865 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:59:36,879 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:59:36,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:59:36,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:59:36,912 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:59:36,912 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:59:36,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:59:36,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:59:36,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:59:36,913 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:59:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 14:59:37,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 14:59:37,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:37,032 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] [2020-10-12 14:59:37,032 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:37,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:37,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1957259726, now seen corresponding path program 1 times [2020-10-12 14:59:37,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:37,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071580290] [2020-10-12 14:59:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:37,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:37,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:37,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 14:59:37,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-12 14:59:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 14:59:37,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:59:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:37,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:37,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:37,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:59:37,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:37,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:59:37,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071580290] [2020-10-12 14:59:37,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:37,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:59:37,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993031232] [2020-10-12 14:59:37,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:59:37,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:37,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:59:37,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:59:37,800 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 14:59:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:46,451 INFO L93 Difference]: Finished difference Result 2270 states and 4348 transitions. [2020-10-12 14:59:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:59:46,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-12 14:59:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:46,483 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 14:59:46,483 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 14:59:46,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:59:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 14:59:46,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2020-10-12 14:59:46,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-12 14:59:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2322 transitions. [2020-10-12 14:59:46,643 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2322 transitions. Word has length 61 [2020-10-12 14:59:46,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:46,644 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 2322 transitions. [2020-10-12 14:59:46,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:59:46,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2322 transitions. [2020-10-12 14:59:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 14:59:46,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:46,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:46,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:59:46,652 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:46,652 INFO L82 PathProgramCache]: Analyzing trace with hash 951649495, now seen corresponding path program 1 times [2020-10-12 14:59:46,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:46,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309904707] [2020-10-12 14:59:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:46,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:46,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:47,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:47,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-12 14:59:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 908 [2020-10-12 14:59:47,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:47,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:47,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:47,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:59:47,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:59:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:47,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:47,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:47,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:47,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:47,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:59:47,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:47,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:47,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:47,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:47,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:59:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:47,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:59:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:59:47,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:59:47,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309904707] [2020-10-12 14:59:47,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:47,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:59:47,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549150726] [2020-10-12 14:59:47,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:47,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:47,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:47,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:47,905 INFO L87 Difference]: Start difference. First operand 1428 states and 2322 transitions. Second operand 7 states. [2020-10-12 14:59:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:56,193 INFO L93 Difference]: Finished difference Result 4337 states and 7089 transitions. [2020-10-12 14:59:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:59:56,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2020-10-12 14:59:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:56,215 INFO L225 Difference]: With dead ends: 4337 [2020-10-12 14:59:56,215 INFO L226 Difference]: Without dead ends: 2915 [2020-10-12 14:59:56,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:59:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2020-10-12 14:59:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2880. [2020-10-12 14:59:56,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2020-10-12 14:59:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3964 transitions. [2020-10-12 14:59:56,349 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3964 transitions. Word has length 130 [2020-10-12 14:59:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:56,352 INFO L479 AbstractCegarLoop]: Abstraction has 2880 states and 3964 transitions. [2020-10-12 14:59:56,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3964 transitions. [2020-10-12 14:59:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 14:59:56,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:56,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:56,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:59:56,365 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash -423468006, now seen corresponding path program 1 times [2020-10-12 14:59:56,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:56,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014546088] [2020-10-12 14:59:56,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:56,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:56,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:56,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:56,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:59:56,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-10-12 14:59:56,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:59:56,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:57,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:57,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:57,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:57,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:57,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:57,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:59:57,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:57,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:57,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:57,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:57,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:59:57,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 14:59:57,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:59:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:59:57,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014546088] [2020-10-12 14:59:57,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:57,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 14:59:57,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645382219] [2020-10-12 14:59:57,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:59:57,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:57,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:59:57,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:59:57,298 INFO L87 Difference]: Start difference. First operand 2880 states and 3964 transitions. Second operand 8 states. [2020-10-12 15:00:06,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:06,267 INFO L93 Difference]: Finished difference Result 8000 states and 11144 transitions. [2020-10-12 15:00:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:00:06,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-10-12 15:00:06,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:06,299 INFO L225 Difference]: With dead ends: 8000 [2020-10-12 15:00:06,299 INFO L226 Difference]: Without dead ends: 5126 [2020-10-12 15:00:06,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:00:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2020-10-12 15:00:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 5062. [2020-10-12 15:00:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5062 states. [2020-10-12 15:00:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 6803 transitions. [2020-10-12 15:00:06,511 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 6803 transitions. Word has length 133 [2020-10-12 15:00:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:06,513 INFO L479 AbstractCegarLoop]: Abstraction has 5062 states and 6803 transitions. [2020-10-12 15:00:06,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:00:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 6803 transitions. [2020-10-12 15:00:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 15:00:06,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:06,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:06,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:00:06,516 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:06,517 INFO L82 PathProgramCache]: Analyzing trace with hash -2095504162, now seen corresponding path program 1 times [2020-10-12 15:00:06,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:06,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944714417] [2020-10-12 15:00:06,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:06,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:06,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:07,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:07,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-12 15:00:07,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-12 15:00:07,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:07,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:00:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:00:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:00:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:07,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:07,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:07,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:07,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:07,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:07,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:00:07,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:07,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:07,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:07,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:00:07,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:07,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:07,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:07,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:07,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:00:07,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:07,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 15:00:07,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:00:07,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:00:07,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944714417] [2020-10-12 15:00:07,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:00:07,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:00:07,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337589036] [2020-10-12 15:00:07,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:07,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:07,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:07,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:07,631 INFO L87 Difference]: Start difference. First operand 5062 states and 6803 transitions. Second operand 7 states. [2020-10-12 15:00:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:16,837 INFO L93 Difference]: Finished difference Result 14728 states and 20340 transitions. [2020-10-12 15:00:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:00:16,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-10-12 15:00:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:16,880 INFO L225 Difference]: With dead ends: 14728 [2020-10-12 15:00:16,880 INFO L226 Difference]: Without dead ends: 9672 [2020-10-12 15:00:16,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:00:16,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9672 states. [2020-10-12 15:00:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9672 to 9557. [2020-10-12 15:00:17,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9557 states. [2020-10-12 15:00:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 12131 transitions. [2020-10-12 15:00:17,119 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 12131 transitions. Word has length 151 [2020-10-12 15:00:17,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:17,121 INFO L479 AbstractCegarLoop]: Abstraction has 9557 states and 12131 transitions. [2020-10-12 15:00:17,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:17,121 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 12131 transitions. [2020-10-12 15:00:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-12 15:00:17,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:17,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:17,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:00:17,126 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:17,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:17,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1099705679, now seen corresponding path program 1 times [2020-10-12 15:00:17,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:17,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827854410] [2020-10-12 15:00:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:17,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:17,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:17,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 15:00:19,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:00:19,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2023 [2020-10-12 15:00:19,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:00:19,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-12 15:00:19,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 15:00:19,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:19,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:00:19,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:00:19,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 15:00:19,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 15:00:19,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,778 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:00:19,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827854410] [2020-10-12 15:00:19,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:19,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:00:19,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459620890] [2020-10-12 15:00:19,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:00:19,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:19,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:00:19,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:00:19,781 INFO L87 Difference]: Start difference. First operand 9557 states and 12131 transitions. Second operand 8 states. [2020-10-12 15:00:26,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:26,709 INFO L93 Difference]: Finished difference Result 19415 states and 24719 transitions. [2020-10-12 15:00:26,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:00:26,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 158 [2020-10-12 15:00:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:26,750 INFO L225 Difference]: With dead ends: 19415 [2020-10-12 15:00:26,751 INFO L226 Difference]: Without dead ends: 9498 [2020-10-12 15:00:26,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:00:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9498 states. [2020-10-12 15:00:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9498 to 9488. [2020-10-12 15:00:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9488 states. [2020-10-12 15:00:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9488 states to 9488 states and 10798 transitions. [2020-10-12 15:00:26,970 INFO L78 Accepts]: Start accepts. Automaton has 9488 states and 10798 transitions. Word has length 158 [2020-10-12 15:00:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:26,971 INFO L479 AbstractCegarLoop]: Abstraction has 9488 states and 10798 transitions. [2020-10-12 15:00:26,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:00:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9488 states and 10798 transitions. [2020-10-12 15:00:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-12 15:00:26,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:26,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:26,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:00:26,974 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:26,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:26,975 INFO L82 PathProgramCache]: Analyzing trace with hash 2093260574, now seen corresponding path program 1 times [2020-10-12 15:00:26,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:26,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722168780] [2020-10-12 15:00:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:28,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:28,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:28,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:28,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:28,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:00:28,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:00:28,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:28,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:28,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:28,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:28,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:28,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-12 15:00:28,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:00:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:00:28,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722168780] [2020-10-12 15:00:28,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:00:28,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:00:28,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593048817] [2020-10-12 15:00:28,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:28,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:28,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:28,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:28,503 INFO L87 Difference]: Start difference. First operand 9488 states and 10798 transitions. Second operand 7 states. [2020-10-12 15:00:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:34,997 INFO L93 Difference]: Finished difference Result 21238 states and 24116 transitions. [2020-10-12 15:00:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:00:34,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-12 15:00:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:35,025 INFO L225 Difference]: With dead ends: 21238 [2020-10-12 15:00:35,025 INFO L226 Difference]: Without dead ends: 11756 [2020-10-12 15:00:35,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:00:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11756 states. [2020-10-12 15:00:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11756 to 11633. [2020-10-12 15:00:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11633 states. [2020-10-12 15:00:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11633 states to 11633 states and 13097 transitions. [2020-10-12 15:00:35,244 INFO L78 Accepts]: Start accepts. Automaton has 11633 states and 13097 transitions. Word has length 183 [2020-10-12 15:00:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:35,245 INFO L479 AbstractCegarLoop]: Abstraction has 11633 states and 13097 transitions. [2020-10-12 15:00:35,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:35,245 INFO L276 IsEmpty]: Start isEmpty. Operand 11633 states and 13097 transitions. [2020-10-12 15:00:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2020-10-12 15:00:35,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:35,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:35,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:00:35,263 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:35,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:35,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1977548731, now seen corresponding path program 1 times [2020-10-12 15:00:35,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:35,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648871551] [2020-10-12 15:00:35,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:38,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:38,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 602 [2020-10-12 15:00:38,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2884 [2020-10-12 15:00:38,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 15:00:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:00:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 596 [2020-10-12 15:00:38,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:38,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:38,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:38,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:38,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:38,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:00:38,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:00:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:38,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:38,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:39,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:39,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:39,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1402 [2020-10-12 15:00:39,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:00:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 532 [2020-10-12 15:00:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:40,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:40,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:40,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:40,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-12 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:40,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-12 15:00:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:00:40,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:40,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:00:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 15:00:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:00:42,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648871551] [2020-10-12 15:00:42,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:42,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:00:42,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661232424] [2020-10-12 15:00:42,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:42,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:42,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:42,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:42,371 INFO L87 Difference]: Start difference. First operand 11633 states and 13097 transitions. Second operand 7 states. [2020-10-12 15:00:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:49,958 INFO L93 Difference]: Finished difference Result 29759 states and 33756 transitions. [2020-10-12 15:00:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:00:49,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 588 [2020-10-12 15:00:49,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:50,021 INFO L225 Difference]: With dead ends: 29759 [2020-10-12 15:00:50,021 INFO L226 Difference]: Without dead ends: 18132 [2020-10-12 15:00:50,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:00:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18132 states. [2020-10-12 15:00:50,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18132 to 16689. [2020-10-12 15:00:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16689 states. [2020-10-12 15:00:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16689 states to 16689 states and 18588 transitions. [2020-10-12 15:00:50,468 INFO L78 Accepts]: Start accepts. Automaton has 16689 states and 18588 transitions. Word has length 588 [2020-10-12 15:00:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:50,469 INFO L479 AbstractCegarLoop]: Abstraction has 16689 states and 18588 transitions. [2020-10-12 15:00:50,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 16689 states and 18588 transitions. [2020-10-12 15:00:50,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2020-10-12 15:00:50,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:50,504 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:50,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:00:50,504 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:50,505 INFO L82 PathProgramCache]: Analyzing trace with hash -978452760, now seen corresponding path program 1 times [2020-10-12 15:00:50,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:50,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869406673] [2020-10-12 15:00:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:50,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:51,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:54,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1005 [2020-10-12 15:00:54,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3778 [2020-10-12 15:00:54,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:00:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:00:54,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:54,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:54,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:54,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:00:54,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:54,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:54,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:54,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:54,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:54,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:54,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 15:00:54,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:54,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:55,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 15:00:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:55,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:00:55,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:55,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 15:00:55,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:55,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:55,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:00:55,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:00:55,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:00:55,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:00:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-12 15:00:56,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869406673] [2020-10-12 15:00:56,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:56,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:00:56,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335485559] [2020-10-12 15:00:56,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:00:56,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:56,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:00:56,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:00:56,303 INFO L87 Difference]: Start difference. First operand 16689 states and 18588 transitions. Second operand 5 states. [2020-10-12 15:01:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:02,410 INFO L93 Difference]: Finished difference Result 33383 states and 37189 transitions. [2020-10-12 15:01:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:01:02,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 985 [2020-10-12 15:01:02,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:02,454 INFO L225 Difference]: With dead ends: 33383 [2020-10-12 15:01:02,454 INFO L226 Difference]: Without dead ends: 16700 [2020-10-12 15:01:02,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:01:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16700 states. [2020-10-12 15:01:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16700 to 16679. [2020-10-12 15:01:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16679 states. [2020-10-12 15:01:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16679 states to 16679 states and 18012 transitions. [2020-10-12 15:01:02,693 INFO L78 Accepts]: Start accepts. Automaton has 16679 states and 18012 transitions. Word has length 985 [2020-10-12 15:01:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:02,695 INFO L479 AbstractCegarLoop]: Abstraction has 16679 states and 18012 transitions. [2020-10-12 15:01:02,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:01:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 16679 states and 18012 transitions. [2020-10-12 15:01:02,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2020-10-12 15:01:02,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:02,738 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:01:02,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:01:02,738 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:02,739 INFO L82 PathProgramCache]: Analyzing trace with hash 266260776, now seen corresponding path program 1 times [2020-10-12 15:01:02,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:02,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756400690] [2020-10-12 15:01:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:02,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:07,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:07,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1037 [2020-10-12 15:01:07,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:01:07,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4142 [2020-10-12 15:01:07,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:01:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:01:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:07,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:07,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:07,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:07,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:07,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:07,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:07,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:07,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:07,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:07,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:07,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:07,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:07,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 15:01:07,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:07,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:07,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:07,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:07,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:07,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:07,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 15:01:07,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:01:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:07,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:07,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:07,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:07,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:07,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:01:07,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:07,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:07,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:08,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:08,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:08,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:08,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:01:08,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:08,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:08,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:08,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:08,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:08,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:08,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:08,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:08,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:01:08,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:08,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:01:08,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:08,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:08,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:08,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:01:08,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:08,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:01:08,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:08,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:08,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:08,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:01:08,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 15:01:09,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756400690] [2020-10-12 15:01:09,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:09,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:01:09,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439274614] [2020-10-12 15:01:09,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:01:09,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:09,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:01:09,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:01:09,324 INFO L87 Difference]: Start difference. First operand 16679 states and 18012 transitions. Second operand 5 states. [2020-10-12 15:01:14,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:14,416 INFO L93 Difference]: Finished difference Result 33368 states and 36063 transitions. [2020-10-12 15:01:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:01:14,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1017 [2020-10-12 15:01:14,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:14,451 INFO L225 Difference]: With dead ends: 33368 [2020-10-12 15:01:14,451 INFO L226 Difference]: Without dead ends: 16695 [2020-10-12 15:01:14,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:01:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16695 states. [2020-10-12 15:01:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16695 to 16679. [2020-10-12 15:01:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16679 states. [2020-10-12 15:01:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16679 states to 16679 states and 17827 transitions. [2020-10-12 15:01:14,688 INFO L78 Accepts]: Start accepts. Automaton has 16679 states and 17827 transitions. Word has length 1017 [2020-10-12 15:01:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:14,690 INFO L479 AbstractCegarLoop]: Abstraction has 16679 states and 17827 transitions. [2020-10-12 15:01:14,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:01:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 16679 states and 17827 transitions. [2020-10-12 15:01:14,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2020-10-12 15:01:14,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:14,709 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:01:14,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:01:14,709 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:14,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:14,710 INFO L82 PathProgramCache]: Analyzing trace with hash -891852240, now seen corresponding path program 1 times [2020-10-12 15:01:14,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:14,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491954339] [2020-10-12 15:01:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:16,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:17,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1127 [2020-10-12 15:01:20,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:01:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-12 15:01:20,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1066 [2020-10-12 15:01:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:01:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:20,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:20,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:20,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:20,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:20,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:20,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:20,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:20,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:20,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:20,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 15:01:20,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:20,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:20,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:20,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:20,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:20,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:01:20,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:20,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:20,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:20,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:20,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:20,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:20,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:20,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:20,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:20,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:20,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:20,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:20,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:20,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:20,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:01:20,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:21,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:21,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:21,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:21,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:01:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:21,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:21,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 15:01:21,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 221 proven. 4 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2020-10-12 15:01:21,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491954339] [2020-10-12 15:01:21,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:21,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:01:21,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127002784] [2020-10-12 15:01:21,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:01:21,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:21,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:01:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:01:21,567 INFO L87 Difference]: Start difference. First operand 16679 states and 17827 transitions. Second operand 5 states. [2020-10-12 15:01:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:30,308 INFO L93 Difference]: Finished difference Result 41227 states and 44647 transitions. [2020-10-12 15:01:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:01:30,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1105 [2020-10-12 15:01:30,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:30,356 INFO L225 Difference]: With dead ends: 41227 [2020-10-12 15:01:30,356 INFO L226 Difference]: Without dead ends: 24554 [2020-10-12 15:01:30,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:01:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24554 states. [2020-10-12 15:01:30,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24554 to 23129. [2020-10-12 15:01:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23129 states. [2020-10-12 15:01:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23129 states to 23129 states and 24772 transitions. [2020-10-12 15:01:30,690 INFO L78 Accepts]: Start accepts. Automaton has 23129 states and 24772 transitions. Word has length 1105 [2020-10-12 15:01:30,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:30,695 INFO L479 AbstractCegarLoop]: Abstraction has 23129 states and 24772 transitions. [2020-10-12 15:01:30,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:01:30,695 INFO L276 IsEmpty]: Start isEmpty. Operand 23129 states and 24772 transitions. [2020-10-12 15:01:30,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1166 [2020-10-12 15:01:30,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:30,717 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:01:30,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:01:30,718 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:30,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:30,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1872513640, now seen corresponding path program 1 times [2020-10-12 15:01:30,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:30,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467067577] [2020-10-12 15:01:30,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:30,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:32,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:33,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:35,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:35,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1187 [2020-10-12 15:01:35,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:01:35,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 15:01:35,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:35,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:01:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 15:01:35,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:35,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:35,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:35,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:35,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:35,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:35,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:35,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:35,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:35,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:36,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 15:01:36,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:36,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:36,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:36,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:01:36,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:36,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:36,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:36,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:01:36,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:36,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:36,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:01:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:01:36,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:01:36,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:01:36,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:01:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:36,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:01:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:36,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:36,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:36,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-12 15:01:36,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 15:01:36,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:01:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 15:01:36,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 635 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-12 15:01:37,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467067577] [2020-10-12 15:01:37,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:37,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:01:37,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733049659] [2020-10-12 15:01:37,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:01:37,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:37,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:01:37,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:01:37,515 INFO L87 Difference]: Start difference. First operand 23129 states and 24772 transitions. Second operand 7 states. [2020-10-12 15:01:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:43,849 INFO L93 Difference]: Finished difference Result 52807 states and 57728 transitions. [2020-10-12 15:01:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:01:43,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1165 [2020-10-12 15:01:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:43,909 INFO L225 Difference]: With dead ends: 52807 [2020-10-12 15:01:43,909 INFO L226 Difference]: Without dead ends: 29684 [2020-10-12 15:01:43,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:01:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29684 states. [2020-10-12 15:01:44,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29684 to 29614. [2020-10-12 15:01:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29614 states. [2020-10-12 15:01:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29614 states to 29614 states and 32159 transitions. [2020-10-12 15:01:44,300 INFO L78 Accepts]: Start accepts. Automaton has 29614 states and 32159 transitions. Word has length 1165 [2020-10-12 15:01:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:44,301 INFO L479 AbstractCegarLoop]: Abstraction has 29614 states and 32159 transitions. [2020-10-12 15:01:44,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:01:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 29614 states and 32159 transitions. [2020-10-12 15:01:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2020-10-12 15:01:44,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:44,328 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:01:44,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:01:44,329 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash -503056476, now seen corresponding path program 1 times [2020-10-12 15:01:44,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:44,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68701073] [2020-10-12 15:01:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:44,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:44,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:47,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1233 [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1172 [2020-10-12 15:01:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:01:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:49,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:49,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:49,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:49,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:49,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:49,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:49,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:49,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:49,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:49,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 15:01:49,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:49,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:50,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:50,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:50,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:50,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 15:01:50,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:50,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:50,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:50,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:50,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:50,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:50,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:50,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:50,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:50,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:50,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:50,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:50,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:50,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:50,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:50,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:50,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:01:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:50,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:50,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-12 15:01:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 221 proven. 4 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2020-10-12 15:01:51,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68701073] [2020-10-12 15:01:51,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:51,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:01:51,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21689876] [2020-10-12 15:01:51,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:01:51,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:51,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:01:51,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:01:51,004 INFO L87 Difference]: Start difference. First operand 29614 states and 32159 transitions. Second operand 5 states. [2020-10-12 15:01:59,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:59,151 INFO L93 Difference]: Finished difference Result 62066 states and 67526 transitions. [2020-10-12 15:01:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:01:59,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1211 [2020-10-12 15:01:59,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:59,212 INFO L225 Difference]: With dead ends: 62066 [2020-10-12 15:01:59,212 INFO L226 Difference]: Without dead ends: 32458 [2020-10-12 15:01:59,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:01:59,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32458 states. [2020-10-12 15:01:59,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32458 to 32442. [2020-10-12 15:01:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32442 states. [2020-10-12 15:01:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32442 states to 32442 states and 35141 transitions. [2020-10-12 15:01:59,616 INFO L78 Accepts]: Start accepts. Automaton has 32442 states and 35141 transitions. Word has length 1211 [2020-10-12 15:01:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:59,617 INFO L479 AbstractCegarLoop]: Abstraction has 32442 states and 35141 transitions. [2020-10-12 15:01:59,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:01:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 32442 states and 35141 transitions. [2020-10-12 15:01:59,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1231 [2020-10-12 15:01:59,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:59,641 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:01:59,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:01:59,641 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:59,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1255473089, now seen corresponding path program 1 times [2020-10-12 15:01:59,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:59,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167110281] [2020-10-12 15:01:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:01,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:02,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:04,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1252 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1191 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 15:02:04,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:04,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:04,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:04,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:05,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:05,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:02:05,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 15:02:05,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:05,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:02:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:05,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:02:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:05,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:05,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:05,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-12 15:02:05,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 15:02:05,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-10-12 15:02:05,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 221 proven. 4 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2020-10-12 15:02:06,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167110281] [2020-10-12 15:02:06,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:06,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:02:06,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125469929] [2020-10-12 15:02:06,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:02:06,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:06,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:02:06,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:02:06,378 INFO L87 Difference]: Start difference. First operand 32442 states and 35141 transitions. Second operand 8 states. [2020-10-12 15:02:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:13,198 INFO L93 Difference]: Finished difference Result 64294 states and 69698 transitions. [2020-10-12 15:02:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:02:13,199 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1230 [2020-10-12 15:02:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:13,251 INFO L225 Difference]: With dead ends: 64294 [2020-10-12 15:02:13,251 INFO L226 Difference]: Without dead ends: 31752 [2020-10-12 15:02:13,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:02:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31752 states. [2020-10-12 15:02:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31752 to 31736. [2020-10-12 15:02:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31736 states. [2020-10-12 15:02:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31736 states to 31736 states and 34403 transitions. [2020-10-12 15:02:13,647 INFO L78 Accepts]: Start accepts. Automaton has 31736 states and 34403 transitions. Word has length 1230 [2020-10-12 15:02:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:13,648 INFO L479 AbstractCegarLoop]: Abstraction has 31736 states and 34403 transitions. [2020-10-12 15:02:13,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:02:13,648 INFO L276 IsEmpty]: Start isEmpty. Operand 31736 states and 34403 transitions. [2020-10-12 15:02:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1239 [2020-10-12 15:02:13,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:13,675 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:13,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:02:13,675 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:13,676 INFO L82 PathProgramCache]: Analyzing trace with hash 125211433, now seen corresponding path program 1 times [2020-10-12 15:02:13,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:13,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227105718] [2020-10-12 15:02:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:15,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:16,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:16,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1262 [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1201 [2020-10-12 15:02:18,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:02:18,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:18,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:18,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:18,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:18,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:02:19,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 15:02:19,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:19,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:02:19,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:02:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:02:19,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:02:19,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:02:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:02:19,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:02:19,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2020-10-12 15:02:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-12 15:02:19,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:02:19,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 15:02:19,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 277 proven. 5 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2020-10-12 15:02:20,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227105718] [2020-10-12 15:02:20,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:20,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:02:20,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405311982] [2020-10-12 15:02:20,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:02:20,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:20,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:02:20,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:02:20,232 INFO L87 Difference]: Start difference. First operand 31736 states and 34403 transitions. Second operand 5 states. [2020-10-12 15:02:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:26,391 INFO L93 Difference]: Finished difference Result 74086 states and 81550 transitions. [2020-10-12 15:02:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:02:26,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1238 [2020-10-12 15:02:26,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:26,449 INFO L225 Difference]: With dead ends: 74086 [2020-10-12 15:02:26,449 INFO L226 Difference]: Without dead ends: 38805 [2020-10-12 15:02:26,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:02:26,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38805 states. [2020-10-12 15:02:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38805 to 38788. [2020-10-12 15:02:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38788 states. [2020-10-12 15:02:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38788 states to 38788 states and 42002 transitions. [2020-10-12 15:02:26,893 INFO L78 Accepts]: Start accepts. Automaton has 38788 states and 42002 transitions. Word has length 1238 [2020-10-12 15:02:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:26,894 INFO L479 AbstractCegarLoop]: Abstraction has 38788 states and 42002 transitions. [2020-10-12 15:02:26,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:02:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 38788 states and 42002 transitions. [2020-10-12 15:02:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1265 [2020-10-12 15:02:26,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:26,928 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:26,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 15:02:26,928 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:26,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1150879027, now seen corresponding path program 1 times [2020-10-12 15:02:26,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:26,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15908324] [2020-10-12 15:02:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:27,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:27,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:28,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:31,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1288 [2020-10-12 15:02:32,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:02:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-12 15:02:32,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:02:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 15:02:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:02:32,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 15:02:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:32,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:02:32,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:32,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:32,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:32,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:02:32,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:02:32,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:32,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:02:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:02:32,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:02:32,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:02:32,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:02:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:32,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 15:02:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:32,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1076 [2020-10-12 15:02:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:33,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 619 proven. 111 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2020-10-12 15:02:34,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15908324] [2020-10-12 15:02:34,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:34,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:02:34,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064098879] [2020-10-12 15:02:34,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:34,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:34,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:34,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:34,572 INFO L87 Difference]: Start difference. First operand 38788 states and 42002 transitions. Second operand 7 states. [2020-10-12 15:02:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:42,636 INFO L93 Difference]: Finished difference Result 83344 states and 91191 transitions. [2020-10-12 15:02:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:02:42,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1264 [2020-10-12 15:02:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:42,701 INFO L225 Difference]: With dead ends: 83344 [2020-10-12 15:02:42,701 INFO L226 Difference]: Without dead ends: 44562 [2020-10-12 15:02:42,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:02:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44562 states. [2020-10-12 15:02:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44562 to 38845. [2020-10-12 15:02:43,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38845 states. [2020-10-12 15:02:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38845 states to 38845 states and 42081 transitions. [2020-10-12 15:02:43,106 INFO L78 Accepts]: Start accepts. Automaton has 38845 states and 42081 transitions. Word has length 1264 [2020-10-12 15:02:43,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:43,107 INFO L479 AbstractCegarLoop]: Abstraction has 38845 states and 42081 transitions. [2020-10-12 15:02:43,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:43,108 INFO L276 IsEmpty]: Start isEmpty. Operand 38845 states and 42081 transitions. [2020-10-12 15:02:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2020-10-12 15:02:43,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:43,128 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:43,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 15:02:43,128 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:43,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2017992744, now seen corresponding path program 1 times [2020-10-12 15:02:43,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:43,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761376717] [2020-10-12 15:02:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:43,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:43,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:44,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:45,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1297 [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1236 [2020-10-12 15:02:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:02:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:02:48,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:02:48,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:02:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:02:48,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:02:48,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:02:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:48,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:48,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 15:02:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:49,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:49,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 15:02:49,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:02:49,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 15:02:49,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1667 backedges. 277 proven. 5 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2020-10-12 15:02:49,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761376717] [2020-10-12 15:02:49,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:49,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:02:49,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146036837] [2020-10-12 15:02:49,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:02:49,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:49,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:02:49,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:02:49,742 INFO L87 Difference]: Start difference. First operand 38845 states and 42081 transitions. Second operand 5 states. [2020-10-12 15:02:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:57,077 INFO L93 Difference]: Finished difference Result 91140 states and 99646 transitions. [2020-10-12 15:02:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:02:57,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1273 [2020-10-12 15:02:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:57,153 INFO L225 Difference]: With dead ends: 91140 [2020-10-12 15:02:57,153 INFO L226 Difference]: Without dead ends: 52301 [2020-10-12 15:02:57,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:02:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52301 states. [2020-10-12 15:02:57,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52301 to 50875. [2020-10-12 15:02:57,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50875 states. [2020-10-12 15:02:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50875 states to 50875 states and 54825 transitions. [2020-10-12 15:02:57,604 INFO L78 Accepts]: Start accepts. Automaton has 50875 states and 54825 transitions. Word has length 1273 [2020-10-12 15:02:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:57,605 INFO L479 AbstractCegarLoop]: Abstraction has 50875 states and 54825 transitions. [2020-10-12 15:02:57,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:02:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 50875 states and 54825 transitions. [2020-10-12 15:02:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2020-10-12 15:02:57,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:57,624 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:57,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 15:02:57,624 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:57,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:57,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1802154683, now seen corresponding path program 1 times [2020-10-12 15:02:57,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:57,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963762303] [2020-10-12 15:02:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:58,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:59,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:59,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:01,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1314 [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 15:03:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1018 [2020-10-12 15:03:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 295 [2020-10-12 15:03:02,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:02,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:02,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:02,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:02,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:02,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:03,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:03,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:03:03,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:03:03,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:03,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:03:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:03:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:03:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:03,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:03:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 15:03:03,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:03:03,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 15:03:03,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-12 15:03:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 15:03:03,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:03,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:03:03,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:03:03,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:03,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 15:03:03,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:03,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1100 [2020-10-12 15:03:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:03,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:03,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:03,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 15:03:03,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 1001 proven. 112 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2020-10-12 15:03:05,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963762303] [2020-10-12 15:03:05,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:05,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:03:05,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636429806] [2020-10-12 15:03:05,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:03:05,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:05,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:03:05,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:03:05,561 INFO L87 Difference]: Start difference. First operand 50875 states and 54825 transitions. Second operand 8 states.