/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_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:59:05,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:59:05,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:59:05,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:59:05,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:59:05,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:59:05,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:59:05,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:59:05,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:59:05,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:59:05,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:59:05,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:59:05,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:59:05,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:59:05,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:59:05,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:59:05,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:59:05,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:59:05,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:59:05,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:59:05,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:59:05,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:59:05,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:59:05,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:59:05,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:59:05,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:59:05,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:59:05,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:59:05,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:59:05,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:59:05,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:59:05,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:59:05,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:59:05,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:59:05,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:59:05,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:59:05,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:59:05,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:59:05,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:59:05,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:59:05,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:59:05,703 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 14:59:05,742 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:59:05,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:59:05,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:59:05,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:59:05,745 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:59:05,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:59:05,745 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:59:05,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:59:05,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:59:05,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:59:05,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:59:05,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:59:05,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:59:05,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:59:05,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:59:05,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:59:05,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:59:05,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:59:05,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:59:05,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:59:05,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:59:05,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:59:05,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:59:05,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:59:05,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:59:05,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:59:05,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:59:05,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:59:05,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:59:05,751 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 14:59:06,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:59:06,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:59:06,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:59:06,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:59:06,106 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:59:06,107 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label22.c [2020-10-12 14:59:06,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/59694ae4f/706f83906ab34a7492fc977f3d745a04/FLAG4e60926f1 [2020-10-12 14:59:06,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:59:06,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label22.c [2020-10-12 14:59:06,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/59694ae4f/706f83906ab34a7492fc977f3d745a04/FLAG4e60926f1 [2020-10-12 14:59:07,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/59694ae4f/706f83906ab34a7492fc977f3d745a04 [2020-10-12 14:59:07,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:59:07,047 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:59:07,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:59:07,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:59:07,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:59:07,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:59:07" (1/1) ... [2020-10-12 14:59:07,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6fb34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:07, skipping insertion in model container [2020-10-12 14:59:07,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:59:07" (1/1) ... [2020-10-12 14:59:07,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:59:07,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:59:08,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:59:08,520 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:59:08,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:59:08,983 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:59:08,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08 WrapperNode [2020-10-12 14:59:08,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:59:08,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:59:08,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:59:08,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:59:09,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (1/1) ... [2020-10-12 14:59:09,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:59:09,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:59:09,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:59:09,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:59:09,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (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 14:59:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:59:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:59:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:59:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:59:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 14:59:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:59:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:59:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:59:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 14:59:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:59:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:59:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:59:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:59:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:59:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:59:15,829 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:59:15,830 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:59:15,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:59:15 BoogieIcfgContainer [2020-10-12 14:59:15,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:59:15,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:59:15,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:59:15,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:59:15,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:59:07" (1/3) ... [2020-10-12 14:59:15,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d76783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:59:15, skipping insertion in model container [2020-10-12 14:59:15,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:59:08" (2/3) ... [2020-10-12 14:59:15,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d76783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:59:15, skipping insertion in model container [2020-10-12 14:59:15,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:59:15" (3/3) ... [2020-10-12 14:59:15,862 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label22.c [2020-10-12 14:59:15,875 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:59:15,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:59:15,907 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:59:15,940 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:59:15,940 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:59:15,940 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:59:15,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:59:15,941 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:59:15,941 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:59:15,941 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:59:15,941 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:59:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 14:59:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 14:59:16,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:16,003 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] [2020-10-12 14:59:16,004 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:16,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:16,011 INFO L82 PathProgramCache]: Analyzing trace with hash -864903206, now seen corresponding path program 1 times [2020-10-12 14:59:16,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:16,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567764849] [2020-10-12 14:59:16,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:16,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:16,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:16,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 14:59:16,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:16,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-12 14:59:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 14:59:16,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 14:59:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:16,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:16,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:16,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:59:16,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:16,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:16,779 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 14:59:16,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567764849] [2020-10-12 14:59:16,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:16,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:59:16,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634546805] [2020-10-12 14:59:16,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:59:16,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:16,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:59:16,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:59:16,808 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 14:59:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:26,392 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 14:59:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:59:26,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-12 14:59:26,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:26,424 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 14:59:26,424 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 14:59:26,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 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 14:59:26,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 14:59:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 14:59:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 14:59:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-12 14:59:26,578 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 47 [2020-10-12 14:59:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:26,579 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-12 14:59:26,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:59:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-12 14:59:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 14:59:26,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:26,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:26,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:59:26,589 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:26,589 INFO L82 PathProgramCache]: Analyzing trace with hash 320821758, now seen corresponding path program 1 times [2020-10-12 14:59:26,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:26,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629179217] [2020-10-12 14:59:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:26,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:26,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 14:59:27,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:27,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1166 [2020-10-12 14:59:27,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:59:27,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:27,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:27,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:27,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:27,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:59:27,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:27,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:27,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:59:27,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:27,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 14:59:27,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:59:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:59:28,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629179217] [2020-10-12 14:59:28,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:28,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:59:28,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411303170] [2020-10-12 14:59:28,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:28,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:28,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:28,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:28,063 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-12 14:59:40,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:40,284 INFO L93 Difference]: Finished difference Result 4357 states and 6856 transitions. [2020-10-12 14:59:40,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:59:40,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-12 14:59:40,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:40,301 INFO L225 Difference]: With dead ends: 4357 [2020-10-12 14:59:40,301 INFO L226 Difference]: Without dead ends: 2938 [2020-10-12 14:59:40,306 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 14:59:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2020-10-12 14:59:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2886. [2020-10-12 14:59:40,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-10-12 14:59:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3988 transitions. [2020-10-12 14:59:40,421 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3988 transitions. Word has length 117 [2020-10-12 14:59:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:40,423 INFO L479 AbstractCegarLoop]: Abstraction has 2886 states and 3988 transitions. [2020-10-12 14:59:40,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3988 transitions. [2020-10-12 14:59:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-12 14:59:40,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:40,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:40,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:59:40,437 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:40,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:40,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1368018729, now seen corresponding path program 1 times [2020-10-12 14:59:40,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:40,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983659970] [2020-10-12 14:59:40,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:40,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:40,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:41,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:41,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-12 14:59:41,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-12 14:59:41,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 14:59:41,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:41,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:41,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:41,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:41,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:41,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:59:41,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:41,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:41,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:42,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:42,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:59:42,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:42,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 14:59:42,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:42,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:59:42,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:59:42,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983659970] [2020-10-12 14:59:42,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:42,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:59:42,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174965190] [2020-10-12 14:59:42,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:42,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:42,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:42,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:42,341 INFO L87 Difference]: Start difference. First operand 2886 states and 3988 transitions. Second operand 7 states. [2020-10-12 14:59:52,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:52,388 INFO L93 Difference]: Finished difference Result 7289 states and 9843 transitions. [2020-10-12 14:59:52,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:59:52,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-12 14:59:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:52,424 INFO L225 Difference]: With dead ends: 7289 [2020-10-12 14:59:52,425 INFO L226 Difference]: Without dead ends: 4409 [2020-10-12 14:59:52,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:59:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2020-10-12 14:59:52,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4343. [2020-10-12 14:59:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4343 states. [2020-10-12 14:59:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 5678 transitions. [2020-10-12 14:59:52,577 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 5678 transitions. Word has length 144 [2020-10-12 14:59:52,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:52,577 INFO L479 AbstractCegarLoop]: Abstraction has 4343 states and 5678 transitions. [2020-10-12 14:59:52,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 5678 transitions. [2020-10-12 14:59:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-12 14:59:52,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:52,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:52,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:59:52,581 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:52,582 INFO L82 PathProgramCache]: Analyzing trace with hash 983857255, now seen corresponding path program 1 times [2020-10-12 14:59:52,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:52,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603651000] [2020-10-12 14:59:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:52,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:52,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 14:59:53,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-12 14:59:53,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:59:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:53,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:53,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:59:53,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:53,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:53,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 14:59:53,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-12 14:59:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:59:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:59:53,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603651000] [2020-10-12 14:59:53,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:59:53,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:59:53,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953927751] [2020-10-12 14:59:53,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:53,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:53,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:53,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:53,613 INFO L87 Difference]: Start difference. First operand 4343 states and 5678 transitions. Second operand 7 states. [2020-10-12 15:00:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:09,746 INFO L93 Difference]: Finished difference Result 13187 states and 17546 transitions. [2020-10-12 15:00:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:00:09,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-10-12 15:00:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:09,788 INFO L225 Difference]: With dead ends: 13187 [2020-10-12 15:00:09,789 INFO L226 Difference]: Without dead ends: 8850 [2020-10-12 15:00:09,803 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 15:00:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8850 states. [2020-10-12 15:00:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8850 to 8754. [2020-10-12 15:00:10,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8754 states. [2020-10-12 15:00:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8754 states to 8754 states and 10498 transitions. [2020-10-12 15:00:10,052 INFO L78 Accepts]: Start accepts. Automaton has 8754 states and 10498 transitions. Word has length 152 [2020-10-12 15:00:10,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:10,054 INFO L479 AbstractCegarLoop]: Abstraction has 8754 states and 10498 transitions. [2020-10-12 15:00:10,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:10,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8754 states and 10498 transitions. [2020-10-12 15:00:10,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-12 15:00:10,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:10,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:10,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:00:10,060 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:10,061 INFO L82 PathProgramCache]: Analyzing trace with hash -652633306, now seen corresponding path program 1 times [2020-10-12 15:00:10,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:10,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265993788] [2020-10-12 15:00:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:10,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:10,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-12 15:00:10,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:10,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-12 15:00:10,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 15:00:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 15:00:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:10,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:10,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:10,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:10,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:10,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:10,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:10,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:10,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:10,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:10,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:10,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:00:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 15:00:10,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 15:00:10,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:00:10,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265993788] [2020-10-12 15:00:10,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:10,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:00:10,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342522985] [2020-10-12 15:00:10,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:00:10,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:10,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:00:10,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:00:10,901 INFO L87 Difference]: Start difference. First operand 8754 states and 10498 transitions. Second operand 5 states. [2020-10-12 15:00:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:23,596 INFO L93 Difference]: Finished difference Result 22572 states and 27861 transitions. [2020-10-12 15:00:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:00:23,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2020-10-12 15:00:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:23,656 INFO L225 Difference]: With dead ends: 22572 [2020-10-12 15:00:23,657 INFO L226 Difference]: Without dead ends: 13824 [2020-10-12 15:00:23,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 15:00:23,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13824 states. [2020-10-12 15:00:23,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13824 to 13788. [2020-10-12 15:00:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13788 states. [2020-10-12 15:00:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13788 states to 13788 states and 16361 transitions. [2020-10-12 15:00:23,995 INFO L78 Accepts]: Start accepts. Automaton has 13788 states and 16361 transitions. Word has length 233 [2020-10-12 15:00:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:23,996 INFO L479 AbstractCegarLoop]: Abstraction has 13788 states and 16361 transitions. [2020-10-12 15:00:23,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:00:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13788 states and 16361 transitions. [2020-10-12 15:00:24,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-12 15:00:24,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:24,004 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:24,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:00:24,005 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:24,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:24,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1405840114, now seen corresponding path program 1 times [2020-10-12 15:00:24,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:24,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612177931] [2020-10-12 15:00:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:24,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:24,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:24,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-12 15:00:25,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:00:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1771 [2020-10-12 15:00:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 15:00:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 15:00:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:25,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:25,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:25,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:25,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:25,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:25,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:25,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:26,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:26,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:26,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:00:26,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 15:00:26,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 15:00:26,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:26,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 15:00:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:26,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:26,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:26,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 15:00:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:00:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:00:27,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612177931] [2020-10-12 15:00:27,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:27,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:00:27,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004174295] [2020-10-12 15:00:27,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:27,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:27,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:27,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:27,113 INFO L87 Difference]: Start difference. First operand 13788 states and 16361 transitions. Second operand 7 states. [2020-10-12 15:00:37,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:37,206 INFO L93 Difference]: Finished difference Result 30579 states and 36459 transitions. [2020-10-12 15:00:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:00:37,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 355 [2020-10-12 15:00:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:37,259 INFO L225 Difference]: With dead ends: 30579 [2020-10-12 15:00:37,259 INFO L226 Difference]: Without dead ends: 15245 [2020-10-12 15:00:37,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:00:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15245 states. [2020-10-12 15:00:37,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15245 to 15183. [2020-10-12 15:00:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15183 states. [2020-10-12 15:00:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 16595 transitions. [2020-10-12 15:00:37,616 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 16595 transitions. Word has length 355 [2020-10-12 15:00:37,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:37,617 INFO L479 AbstractCegarLoop]: Abstraction has 15183 states and 16595 transitions. [2020-10-12 15:00:37,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 16595 transitions. [2020-10-12 15:00:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-10-12 15:00:37,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:37,626 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:37,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:00:37,627 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:37,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:37,627 INFO L82 PathProgramCache]: Analyzing trace with hash 883065273, now seen corresponding path program 1 times [2020-10-12 15:00:37,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:37,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805846339] [2020-10-12 15:00:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:37,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:40,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:42,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:42,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 458 [2020-10-12 15:00:42,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:00:42,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 15:00:42,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:42,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:00:42,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:00:42,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:00:42,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:42,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:42,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:42,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:42,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:00:42,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:00:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:00:42,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:43,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:43,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:43,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:43,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:00:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:43,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:43,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:43,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:43,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:43,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 15:00:43,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:00:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:00:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:00:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:00:44,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:00:44,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 15:00:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:44,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 80 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:00:44,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805846339] [2020-10-12 15:00:44,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:44,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:00:44,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221487417] [2020-10-12 15:00:44,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:00:44,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:44,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:00:44,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:00:44,574 INFO L87 Difference]: Start difference. First operand 15183 states and 16595 transitions. Second operand 8 states. [2020-10-12 15:00:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:53,593 INFO L93 Difference]: Finished difference Result 36329 states and 40438 transitions. [2020-10-12 15:00:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:00:53,595 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 444 [2020-10-12 15:00:53,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:53,665 INFO L225 Difference]: With dead ends: 36329 [2020-10-12 15:00:53,666 INFO L226 Difference]: Without dead ends: 21152 [2020-10-12 15:00:53,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:00:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21152 states. [2020-10-12 15:00:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21152 to 20373. [2020-10-12 15:00:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20373 states. [2020-10-12 15:00:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20373 states to 20373 states and 22583 transitions. [2020-10-12 15:00:54,067 INFO L78 Accepts]: Start accepts. Automaton has 20373 states and 22583 transitions. Word has length 444 [2020-10-12 15:00:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:54,068 INFO L479 AbstractCegarLoop]: Abstraction has 20373 states and 22583 transitions. [2020-10-12 15:00:54,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:00:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 20373 states and 22583 transitions. [2020-10-12 15:00:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-10-12 15:00:54,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:54,111 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:00:54,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:00:54,112 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:54,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:54,113 INFO L82 PathProgramCache]: Analyzing trace with hash -728953872, now seen corresponding path program 1 times [2020-10-12 15:00:54,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:54,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023127343] [2020-10-12 15:00:54,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:54,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 991 [2020-10-12 15:00:59,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4742 [2020-10-12 15:00:59,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:00:59,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:00:59,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:59,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:59,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:59,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:59,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 15:00:59,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:59,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:59,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:00:59,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:00:59,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:59,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:00:59,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:01:00,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:00,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:00,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:00,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:00,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:00,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-12 15:01:00,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:00,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:00,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:00,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:01:00,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:00,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:00,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:00,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:00,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:00,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:01:00,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:01:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:01:00,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:00,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:00,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:01:00,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 15:01:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:01:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:01:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-12 15:01:01,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023127343] [2020-10-12 15:01:01,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:01,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:01:01,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473878574] [2020-10-12 15:01:01,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:01:01,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:01,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:01:01,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:01:01,600 INFO L87 Difference]: Start difference. First operand 20373 states and 22583 transitions. Second operand 7 states. [2020-10-12 15:01:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:10,153 INFO L93 Difference]: Finished difference Result 48795 states and 55350 transitions. [2020-10-12 15:01:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:01:10,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 971 [2020-10-12 15:01:10,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:10,245 INFO L225 Difference]: With dead ends: 48795 [2020-10-12 15:01:10,245 INFO L226 Difference]: Without dead ends: 28428 [2020-10-12 15:01:10,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:01:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28428 states. [2020-10-12 15:01:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28428 to 28351. [2020-10-12 15:01:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28351 states. [2020-10-12 15:01:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28351 states to 28351 states and 31801 transitions. [2020-10-12 15:01:10,756 INFO L78 Accepts]: Start accepts. Automaton has 28351 states and 31801 transitions. Word has length 971 [2020-10-12 15:01:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:10,758 INFO L479 AbstractCegarLoop]: Abstraction has 28351 states and 31801 transitions. [2020-10-12 15:01:10,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:01:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 28351 states and 31801 transitions. [2020-10-12 15:01:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2020-10-12 15:01:10,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:10,772 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:01:10,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:01:10,772 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:10,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:10,773 INFO L82 PathProgramCache]: Analyzing trace with hash -533508560, now seen corresponding path program 1 times [2020-10-12 15:01:10,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:10,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593844244] [2020-10-12 15:01:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:11,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:11,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:14,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:14,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1023 [2020-10-12 15:01:14,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:01:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3885 [2020-10-12 15:01:14,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:01:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 15:01:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:14,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:14,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:14,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:14,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:14,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:14,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:14,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:14,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:15,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 15:01:15,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:15,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:01:15,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:15,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:01:15,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 15:01:15,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:15,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:01:15,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:01:15,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:01:15,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:01:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 123 proven. 3 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 15:01:16,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593844244] [2020-10-12 15:01:16,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:16,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:01:16,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199904707] [2020-10-12 15:01:16,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:01:16,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:16,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:01:16,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:01:16,215 INFO L87 Difference]: Start difference. First operand 28351 states and 31801 transitions. Second operand 5 states. [2020-10-12 15:01:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:23,635 INFO L93 Difference]: Finished difference Result 63818 states and 73122 transitions. [2020-10-12 15:01:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:01:23,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1003 [2020-10-12 15:01:23,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:23,725 INFO L225 Difference]: With dead ends: 63818 [2020-10-12 15:01:23,725 INFO L226 Difference]: Without dead ends: 31925 [2020-10-12 15:01:23,764 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 15:01:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31925 states. [2020-10-12 15:01:24,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31925 to 31910. [2020-10-12 15:01:24,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31910 states. [2020-10-12 15:01:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31910 states to 31910 states and 35917 transitions. [2020-10-12 15:01:24,283 INFO L78 Accepts]: Start accepts. Automaton has 31910 states and 35917 transitions. Word has length 1003 [2020-10-12 15:01:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:24,284 INFO L479 AbstractCegarLoop]: Abstraction has 31910 states and 35917 transitions. [2020-10-12 15:01:24,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:01:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 31910 states and 35917 transitions. [2020-10-12 15:01:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1024 [2020-10-12 15:01:24,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:24,300 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:24,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:01:24,301 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:24,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:24,301 INFO L82 PathProgramCache]: Analyzing trace with hash 138233752, now seen corresponding path program 1 times [2020-10-12 15:01:24,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:24,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610861128] [2020-10-12 15:01:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:24,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:24,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1043 [2020-10-12 15:01:28,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:01:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3801 [2020-10-12 15:01:28,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 996 [2020-10-12 15:01:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 15:01:28,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:28,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:28,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:28,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:28,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:28,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:28,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:28,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 15:01:28,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:28,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:28,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:28,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:28,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:01:28,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:28,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:28,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:28,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:28,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:01:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:28,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:28,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:28,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:01:28,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:28,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:28,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:28,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:28,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:28,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:28,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:28,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:01:28,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:28,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:29,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:29,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 15:01:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 123 proven. 3 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-10-12 15:01:29,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610861128] [2020-10-12 15:01:29,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:29,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:01:29,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206519313] [2020-10-12 15:01:29,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:01:29,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:29,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:01:29,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:01:29,712 INFO L87 Difference]: Start difference. First operand 31910 states and 35917 transitions. Second operand 5 states. [2020-10-12 15:01:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:37,031 INFO L93 Difference]: Finished difference Result 70871 states and 80687 transitions. [2020-10-12 15:01:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:01:37,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1023 [2020-10-12 15:01:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:37,137 INFO L225 Difference]: With dead ends: 70871 [2020-10-12 15:01:37,137 INFO L226 Difference]: Without dead ends: 38967 [2020-10-12 15:01:37,183 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 15:01:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38967 states. [2020-10-12 15:01:37,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38967 to 38252. [2020-10-12 15:01:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38252 states. [2020-10-12 15:01:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38252 states to 38252 states and 42702 transitions. [2020-10-12 15:01:37,699 INFO L78 Accepts]: Start accepts. Automaton has 38252 states and 42702 transitions. Word has length 1023 [2020-10-12 15:01:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:37,700 INFO L479 AbstractCegarLoop]: Abstraction has 38252 states and 42702 transitions. [2020-10-12 15:01:37,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:01:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 38252 states and 42702 transitions. [2020-10-12 15:01:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-10-12 15:01:37,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:37,719 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:37,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:01:37,720 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:37,720 INFO L82 PathProgramCache]: Analyzing trace with hash -513693667, now seen corresponding path program 1 times [2020-10-12 15:01:37,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:37,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507367437] [2020-10-12 15:01:37,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:37,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:38,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:39,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:41,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:42,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:42,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1152 [2020-10-12 15:01:42,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:01:42,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 15:01:42,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:01:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:01:42,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 15:01:42,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:43,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:43,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:43,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:43,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 15:01:43,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:43,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:43,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:01:43,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:43,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:43,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:01:43,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:43,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:43,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:01:43,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:01:43,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:01:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:43,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:01:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:43,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:43,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:01:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:01:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1087 backedges. 493 proven. 42 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-12 15:01:44,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507367437] [2020-10-12 15:01:44,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:44,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:01:44,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395662580] [2020-10-12 15:01:44,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:01:44,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:44,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:01:44,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:01:44,536 INFO L87 Difference]: Start difference. First operand 38252 states and 42702 transitions. Second operand 6 states. [2020-10-12 15:01:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:53,628 INFO L93 Difference]: Finished difference Result 77405 states and 88028 transitions. [2020-10-12 15:01:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:01:53,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1130 [2020-10-12 15:01:53,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:53,733 INFO L225 Difference]: With dead ends: 77405 [2020-10-12 15:01:53,733 INFO L226 Difference]: Without dead ends: 39159 [2020-10-12 15:01:53,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:01:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39159 states. [2020-10-12 15:01:54,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39159 to 38968. [2020-10-12 15:01:54,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38968 states. [2020-10-12 15:01:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38968 states to 38968 states and 43134 transitions. [2020-10-12 15:01:54,371 INFO L78 Accepts]: Start accepts. Automaton has 38968 states and 43134 transitions. Word has length 1130 [2020-10-12 15:01:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:54,373 INFO L479 AbstractCegarLoop]: Abstraction has 38968 states and 43134 transitions. [2020-10-12 15:01:54,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:01:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 38968 states and 43134 transitions. [2020-10-12 15:01:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2020-10-12 15:01:54,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:54,409 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, 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, 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, 1] [2020-10-12 15:01:54,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:01:54,410 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:54,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1730654140, now seen corresponding path program 1 times [2020-10-12 15:01:54,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:54,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501421612] [2020-10-12 15:01:54,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:55,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:55,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:56,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:59,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:59,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1221 [2020-10-12 15:01:59,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:01:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 15:01:59,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:01:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 15:01:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:59,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:59,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:59,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:59,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:59,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:59,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:59,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:59,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:59,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 15:01:59,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:59,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:00,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:00,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:02:00,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:00,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:00,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:02:00,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 15:02:00,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:00,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:02:00,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:02:00,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:00,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:02:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:02:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:00,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:02:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:02:00,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 15:02:00,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:00,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:00,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 15:02:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:00,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 15:02:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:00,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:00,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:00,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:02:00,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:02:00,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:02:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:00,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1421 backedges. 531 proven. 87 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2020-10-12 15:02:01,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501421612] [2020-10-12 15:02:01,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:01,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:02:01,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179605881] [2020-10-12 15:02:01,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:01,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:01,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:01,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:01,533 INFO L87 Difference]: Start difference. First operand 38968 states and 43134 transitions. Second operand 7 states. [2020-10-12 15:02:13,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:13,391 INFO L93 Difference]: Finished difference Result 92292 states and 103040 transitions. [2020-10-12 15:02:13,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:02:13,392 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1197 [2020-10-12 15:02:13,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:13,517 INFO L225 Difference]: With dead ends: 92292 [2020-10-12 15:02:13,517 INFO L226 Difference]: Without dead ends: 53330 [2020-10-12 15:02:13,553 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 15:02:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53330 states. [2020-10-12 15:02:14,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53330 to 53275. [2020-10-12 15:02:14,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53275 states. [2020-10-12 15:02:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53275 states to 53275 states and 58608 transitions. [2020-10-12 15:02:14,229 INFO L78 Accepts]: Start accepts. Automaton has 53275 states and 58608 transitions. Word has length 1197 [2020-10-12 15:02:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:14,230 INFO L479 AbstractCegarLoop]: Abstraction has 53275 states and 58608 transitions. [2020-10-12 15:02:14,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 53275 states and 58608 transitions. [2020-10-12 15:02:14,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2020-10-12 15:02:14,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:14,258 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:14,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:02:14,259 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:14,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:14,260 INFO L82 PathProgramCache]: Analyzing trace with hash 587238954, now seen corresponding path program 1 times [2020-10-12 15:02:14,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:14,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632053247] [2020-10-12 15:02:14,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:14,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:15,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:18,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1314 [2020-10-12 15:02:19,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:02:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 15:02:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-12 15:02:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-12 15:02:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:19,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:19,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:19,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:19,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:19,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:19,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:20,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:20,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:20,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:20,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:02:20,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:20,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:02:20,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:20,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:20,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:20,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:20,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:20,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:02:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:20,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:20,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:20,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:02:20,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:20,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:02:20,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:02:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:20,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:02:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:20,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:20,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:20,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 15:02:20,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:20,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-12 15:02:20,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-12 15:02:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:20,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1163 [2020-10-12 15:02:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:20,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:20,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 15:02:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 966 proven. 6 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2020-10-12 15:02:22,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632053247] [2020-10-12 15:02:22,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:22,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:02:22,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807098003] [2020-10-12 15:02:22,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:22,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:22,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:22,468 INFO L87 Difference]: Start difference. First operand 53275 states and 58608 transitions. Second operand 7 states. [2020-10-12 15:02:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:30,372 INFO L93 Difference]: Finished difference Result 122861 states and 137710 transitions. [2020-10-12 15:02:30,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:02:30,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1290 [2020-10-12 15:02:30,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:30,488 INFO L225 Difference]: With dead ends: 122861 [2020-10-12 15:02:30,488 INFO L226 Difference]: Without dead ends: 69592 [2020-10-12 15:02:30,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 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 15:02:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69592 states. [2020-10-12 15:02:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69592 to 69504. [2020-10-12 15:02:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69504 states. [2020-10-12 15:02:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69504 states to 69504 states and 77047 transitions. [2020-10-12 15:02:31,269 INFO L78 Accepts]: Start accepts. Automaton has 69504 states and 77047 transitions. Word has length 1290 [2020-10-12 15:02:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:31,270 INFO L479 AbstractCegarLoop]: Abstraction has 69504 states and 77047 transitions. [2020-10-12 15:02:31,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 69504 states and 77047 transitions. [2020-10-12 15:02:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2020-10-12 15:02:31,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:31,291 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:02:31,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:02:31,291 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:31,291 INFO L82 PathProgramCache]: Analyzing trace with hash -504068111, now seen corresponding path program 1 times [2020-10-12 15:02:31,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:31,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116051833] [2020-10-12 15:02:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:31,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:34,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:35,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1344 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 15:02:36,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:36,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:02:36,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:36,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:36,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:36,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:02:36,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:02:36,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:02:36,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:02:36,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:36,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:02:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:36,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:36,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:36,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:02:36,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:36,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:02:36,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:37,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:02:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:37,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:37,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:37,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:02:37,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:37,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:02:37,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:37,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:37,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:37,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:37,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:02:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:37,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:37,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:37,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:02:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:37,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:37,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:02:37,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:02:37,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:37,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:02:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:37,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:37,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 15:02:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-12 15:02:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:37,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:38,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:38,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:02:38,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:38,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1168 [2020-10-12 15:02:38,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 15:02:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:38,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-12 15:02:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:38,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:38,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:38,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 15:02:38,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:38,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:02:38,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:38,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:02:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 15:02:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:02:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:39,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1987 backedges. 615 proven. 88 refuted. 0 times theorem prover too weak. 1284 trivial. 0 not checked. [2020-10-12 15:02:39,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116051833] [2020-10-12 15:02:39,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:39,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:02:39,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122373216] [2020-10-12 15:02:39,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:39,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:39,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:39,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:39,230 INFO L87 Difference]: Start difference. First operand 69504 states and 77047 transitions. Second operand 7 states.